Jenn-Air W27400 Oven User Manual
Contents
1. 1 1 OVEN SENSOR mcm 1 1 FAULT CODES D Qu QO Q Cie 1 2 SECTION 2 COMPONENT ACCESS 2 1 CONTROL PANEL ASSEMBLY J Ul nn nn semis a NE 2 1 OVEN DOOR REMOVAL 2 1 SERVICING OVEN DOOR 2 1 OVEN DOOR HINGE REPLACEMENT ccccccscssseccsssssssssescsssssesserssasstsserscecessusseccesesscececevesess 2 2 COOLING FAN ACCESS ascen iE et s Tid aQ ele 2 2 OVEN CAVITY COMPONENTS TC reper annee hoe 2 2 Oven Sensor Removal seine umi dearum ur 2 2 Element Removal J ee EE 2 2 Broil Element Removal l ocv UTE FER Ded LLL 2 2 Oven IIE METRE 2 3 Convection Motor Assembly 2 3 OVEN VENT SMOKE ELIMINATOR scccssssssscsccsssssscossssssssscscescscssessececscessarsesecesececseseceesess 2 3 OVEN CAV GY durar EU a en 2 3 OVEN HINGE ce a Wh 2 3 SECTION 3 TROUBLESHOOTING rererere eeens 3 1 ELECTRONIC OVEN CONTROL TROUBLESHOOTING o u V2. DESCRIPTION 1 4 1999 Maytag Appliances Sales Company SECTION 2 COMPONENT ACCESS The following are instructions to access repair and replace components of the slide in range The unit is more accessible if it is removed from the installed position before servicing procedures begin IMPORTANT DISCONNECT FROM POWER SOURCE BEFORE SERVICING APPLIANCE CONTROL PANEL ASSEMBLY Electrical components can be accessed by removing the control panel To remove the control panel open the oven door as wide as possible Remove the three screws from the top of the control panel and the three screws at the bottom of the con trol panel Grasp the control panel by placing hands on the right and left sides of the panel pull out and down to disengage For JJW Models 1 To remove the control panel open the door as wide as possible Remove the four screws from the bottom of the control panel Grasp the control panel by placing hands on the right and left sides of the panel lift up and out to disengage from upper flange 2 Place the panel on the top oven rack cover with a cloth to prevent scratch ing for component testing 3 With the control panel pulled forward access is now available to the following components Control Assembly Clock High Limit Thermostat Cooling Fan Door Latch Mechanism and Motor 16009721 1999 Maytag Appliances Sales Company OVEN DOOR REMOVAL 1 Open the oven door a
3. Shorted Key Keyboard Disconnected For Models COMPONENTS TO CHECK Ohm Test Sensor Check connection at Sensor Wire Harness Check control If keyboard is not disconnected F1 4 key is not shorted F1 3 replace control Sensor Failure or Sensor Ohm sensor See chart Circuit Failure Ci WW27110 WW30110 WM27160 Oven Sensor Chart Please refer to chart on 1 3 16009721 1999 Maytag Appliances Sales Company COMPONENT DESCRIPTION 1 2 PROBLEM COMPONENTS TO CHECK Power to element relay activated J1 J2 wire harness connection to control shorted If during time of day display checks ok change control Ohm TEST SENSOR If checks ok change control ened senor Ohm sensor Check connection of sensor wire harness Shorted key Stuck Function Key on control For Models W27100 W27200 W30100 WW27210 WM27260 Oven Sensor Chart Please refer to chart below MEAT PROBE OVEN SENSOR TYPE NTC thermistor SENSOR TYPE RTD 1000 ohm platinum CALIBRATION 9938 ohms 150 F CALIBRATION 1654 ohms 350 F PROBE RESISTANCE VS TEMP TABLE OVEN SENSOR RESISTANCE VS TEMP TABLE DEGREES F RESISTANCE DEGREES F RESISTANCE 122 18963 ohms 100 1143 ohms 150 9938 200 1350 156 2 8846 300 1553 165 2 7456 350 1654 210 1 3886 400 1753 500 1949 600 2142 700 2331 800 2516 900 2697 1000 2874 For Models W27400 W30400 W30400P WW27430 WW27430P WW30430 WW
4. 7108 1 INIT NIN Or 153 3 9 31v4 10 1v 312942 11088 01 Jive d 3910036 5 ATNO 11039 5480036 9 5010035 09 Sp X 85 i 5 erya i 3 25121 ons 1 1 1 1 igi Tum I 1 T I 1 1 5 LIMIT ACTUATED i B 585 pads T E pid ane 4 4 3 WIRING DIAGRAM 1999 Maytag Appliances Sales Company 16009721 W27200 W30100 WM27160 WM27260 LI 16009721 WIRING DIAGRAM 4 4 1999 Maytag Appliances Sales Company W27200 W30100 WM27160 WM27260 WIRING DIAGRAM P N 2085 16009721 E WIRING DIAGRAM 4 5 1999 Maytag Appliances Sales Company W27400 W30400 W30400P WM27460 WM30460 TRUE COF GURAT ION WHITE amp RED RELAXED POSITION RELAY YELLOW PLUG 41 ue MOTED SYMBOLS 00 NOT SHON Of AL FEED Lint i COMPONENTS t 1 DOTTED LIMES REPRESENT OPTIONAL FEATURES st 0 AYA NOTES SERVICER PLEASE RETURN OIAGRAM RANGE CAN CAUSE IMPROPER AND DANGEROUS OP RATION VERIFY PROPER OPERATION AFTER SERVICING CAUTION REFER ONLY 70 FEATURES EQUIPPED LABEL ALL WIRES PRIOR TO 0 ION WHEN SERVICING CONTROLS WIRING PROBLEMS DISCONNECT RANG
5. Beriteded _ pap po sco eue xa T ___ _____ 3M Resvelme Probe Out Probe In Signal Ground Down Draft OFF or High Down Draft ON Low 16009721 TROUBLESHOOTING 3 5 1999 Maytag Appliances Sales Company Power Board Voltage Resistance Ref Point Comments 2 8 Door Lock Limit 0 0 Vdc Time of Day Mode Cooking Mode Active wm Serial Clock Line 0 0 Time of Day Mode 1 J ov 3 oun 29 _ n C 0 Ott 12 Vae Source gt coses rT Door Open ses oova ses move Jt Door Locked __ DE ei ves tt Door i Unoa es 00 Ort afro st ven Probe mS ou 93 cie ww _ ll lt J1 1 16009721 TROUBLESHOOTING 3 6 1999 Maytag Appliances Sales Company Control Head Voltage Resistance Ref Point Comments __ 00 na Co EEE pp em Enable tine 0 0 Time of Day Mode 13 VAC 2 5 VAC
6. 16009721 WIRING DIAGRAM 4 1 1999 Maytag Appliances Sales Company 6 JJW8530 JJW9530 CANADA MODELS 35 H31JV 1V3J3dO MN3dOHd 011 4330 ONY ASNVD NYO SN3180 d 9NINIM STOMINOO ONIOIAYIS_ N3HM NO 1293NNOOSIQ OL 3Olsd S3JIM 71 38V NOILDVO 3oNVIlddv OL WvS5viO NYNLIS 35 379 3321A33S 03991103 S34nlvid OL 43338 33910 9NIAOW3H 3350438 H3MOd WOuJ Iddy IS i 1 LON SEAL Was 142534434 SINN SALON 4 17 WIRING DIAGRAM 16009721 1999 Maytag Appliances Sales Company JJW8530 JJW9530 CANADA MODELS N L2 BLACK 1 DOTTED LINES REPRESENT OPTIONAL FEATURES WHITE RED BK TRANSFORMER W HE 25 p429 BI 1382 3 5 gt 35 SRAN 2580 2898 eee REN 9 5059 8 e Bose 5 Bx 533 T zx FEE Sp 9 SPECIFIC CYCLE RATES FOR EACH MODE 8 SPECIFIC ELEMENT 15 AVAILABLE FROM SERVICE PRINTED CIRCUIT BOARD UPPER MODES OE Pour tele ar Histo tonnes ser L BAOL BAKE CVBAKE CVRST 16009721 WIRING DIAGRAM 4 18 1999 Maytag Appliances Sales Company Maytag Appliances Sales Company Customer Service 240 Edwards St Cleveland TN 37311
7. Jenn Air Electric Wall Oven Service Manual 16009721 Issued 7 99 SAFETY PRECAUTIONS This service information is intended to be used by a qualified service technician who is famil iar with proper and safe procedures to be followed when repairing any electrical appliance All tests and repairs should be performed by a qualified service technician who is equipped with proper tools and measuring devices All replacements should be made by a qualified service technician using only Maytag Appliances Sales Company replacement parts Improper assembly or adjustment may occur if service or repair is attempted by persons other than qualified service technicians or if parts other than Maytag Appliances Sales Com pany replacement parts are used Improper assembly or adjustment can cause hazardous conditions There can be risk of injury or electrical shock while performing services or repairs Injury or electric shock can be serious or even fatal 16009721 1999 Maytag Appliances Sales Company INTRODUCTION The manual is printed in a loose format and is divided into sections relating to a general group of components and or service procedures Each section is further subdivided to describe a particular component or service procedure The subdividing of the subject matter plus the loose leaf form will facilitate the updating of the manual as new or revised components are added or new models are introduced Each page of the
8. 6 Remove the two screws holding the left and right side brackets in position 7 Slide the front door glass out of the frame 8 Reverse the procedure to reassemble OVEN DOOR HINGE REPLACEMENT 1 Remove two screws from oven inner door panel that mount into the lower portion of oven door hinge assembly 2 Grasp and lift oven door hinge assembly upward and slide down to disengage upper tabs from the door panel 16009721 1999 Maytag Appliances Sales Company 3 To reassemble the oven door reverse the procedures for disassembling COOLING FAN ACCESS To access the cooling fan remove two 1 4 hex screws from the bracket which the fan is mounted on motor and bracket to allow it to pass through main back panel OVEN CAVITY COMPONENTS Oven cavity components consist of bake and broil elements oven light assembly convection motor oven cavity and oven sensor Oven Sensor Removal Remove two 1 4 hex screws pull oven sensor into oven cavity to gain access to the electrical quick connector To reassemble use a probe and attach the probe to the quick connector Guide it through the insulation to ensure the connec tor does not contact the oven cavity Contact could damage the connector Return to the original position reattaching with the 1 4 hex screws Bake Element Removal Remove the two 1 4 screws Pull the bake element into the oven cavity to access electrical wiring Broil Eleme
9. and Oven Vohage Resistance Ref Point Comments m um Ce ouem oua 29 r1 Door Lock Lint s 00 Time of Day Mode pum TI ELM sve 7 4 J7 5 i UE J 16009721 TROUBLESHOOTING 3 7 1999 Maytag Appliances Sales Company MULTIPLEXING CIRCUITRY WALL OVENS 16009721 MAIN POWER BOARD VCC REFERENCE KEY 2ND OVEN 1 OVEN POWER BOARD DOUBLE OVEN ONLY 8L9SGPVECLE VCC REFERENCE DOOR LOCK OVEN 2 KEY TROUBLESHOOTING 1999 Maytag Appliances Sales Company 3 8 POWER RELAY BOARD CONNECTIONS TO DISPLAY TOL1 SENSOR TO DISPLAY BOARD DOOR LOCK MOTOR COOLING CONVECTION MOTOR SLOW SPEED MOTOR HIGH SPEED 16009721 TROUBLESHOOTING 3 9 1999 Maytag Appliances Sales Company DISPLAY BOARD CONNECTIONS TO POWER RELAY BOARD J1 DISPLAY BOARD J2 MEMBRANE SWITCH TAIL TO POWER RELAY BOARD J2 CIRCUIT BOARD CONNECTIONS DISPLAY BOARD 2 MEMBRANE SWITCH TAIL 16009721 TROUBLESHOOTING 10 1999 Maytag Appliances Sales Company 3 MEMBRANE CONNECTIONS LO BAKE LO BROIL PROBE UPPER BAKE UPPER BROIL UPPER CLEAN UPPER CONVECTION BAKE UPPER CONVECTION ROAST UPPER CANCEL Membrane Switch The means to make a switch contact instructing the electronic control system to perform a desired fun
10. manual will be identified in the lower right hand corner and as new or revised pages are published the manual can easily be updated by following the filing instructions on the cover letter of the supplement This service manual is a valuable tool and care should be taken to keep it up to date by prompt and proper filing of subsequent pages as they are used MODELS COVERED IN THIS MANUAL W2451 WM27260 W27100 WM27460 W27200 WM30460 W27400 JJW8527 W30100 JJW8530 W30400 JJW8627 W30400P JJW8630 WW2460 JJW9527 WW27110 JJW9530 WW 7210 JJW9627 WW27430 JJW9630 WW27430P 8527 WW30110 JMW8530 WW 30430 JMW9527 WW30430P JMW9530 WM27160 1999 Maytag Appliances Sales Company introduction i NOTES 16009721 1999 Maytag Appliances Sales Company Introduction CONTENTS GENERAL SAFETY PRECAUTIONS U Uu aaa i INTRODUCTION Ds cesses uuu ii CONTENTS d et ne Sn a A N A iv SECTION 1 COMPONENT DESCRIPTION 1 1 PROBE a s u ann SSS h ea aes e 1 1 MEMBRANE SWITGCH L 1 1 ELECTRIC CONTROL L icti qua ne Ave 1 1 TOUCH SENSOR TECHNOLOGY eccscssscscsssssssccecesserssensessserscrstaceesacarsevsceecetsversrascoresss 1 1 DISPLAY BOARD ana acest ni Na ne 1 1 POWER RELAY BOARD
11. pad within four seconds of each other The relay should engage the fan should start on high speed and the element should start to heat Listen for the relay the fan and then check for heat from the element Drying Pad Touch the drying pad and then the auto set pad within four seconds of each other The fan should start and the element should start to heat Listen for the fan and check for heat from the element Clean Pad Touch the clean pad and then the auto set pad within four seconds of each other The relay should engage the door lock motor energize and the door lock Listen for the relay the motor to energize and check the door to make sure it locks 16009721 TROUBLESHOOTING 3 18 1999 Maytag Appliances Sales Company SECTION 4 WIRING DIAGRAM W2451 16009721 WIRING DIAGRAM 4 1 91999 Maytag Appliances Sales Company W2451 L 2 N R LATCH SW 1607 TIMER RELAY THERMOSTAT VZR Se trs rt Tu SEL SW THERMOSTAT arcu Sw amy THERM ATCH R 5 UNIALTS nux Tei COMPONENT SYMBOLS DO NOT REFLECT TRUE CONFIGURATION ALL FEED LINE COLORS ARE SCISSOR LATCH SW MAKES WITH DOOR CLOSED NOTED BLACK WHITE AND RED ALL COMPONENTS SHOWN IN NFF POSITION 6009 WIRING DIAGRAM 4 2 7H 1999 Maytag Appliances Sales Company W27100 HI LIMIT TUTE 8 2 wI Jiva AY ONI DAI 33NG L INTI OF 313 ONITOAJ
12. temperature The sensor has a PTC or positive temperature coefficient or a resis tance value that increases with temperature Allows the electronic control to maintain a temperature setting through means of resistance matching with the control se lected temperature Example The oven control is set at 350 F the oven sensor resistance at room temperature is approxi mately 1060 ohms As the oven heats the COMPONENT DESCRIPTION 1 1 1999 Maytag Appliances Sales Company resistance of the sensor increases The resistance of the sensor at 350 F is approxi mately 1654 ohms The electronic control monitors the resistance value of the sensor and cycles the oven heating elements off As the temperature in the oven decreases the resistance of the sensor decreases Ata predetermined temperature setting the electronic control will initiate another heat ing cycle in the oven elements See oven sensor chart at right for resistance values FAULT CODES Sensor Type Calibration 1000 ohm platinum 1654 ohms 350 OVEN SENSOR RESISTANCE VS TEMP TABLE 1143 ohms 1654 ohms 1753 ohms 1949 ohms 2331 ohms 2697 ohms 2874 ohms 1000 There are built in fault codes to assist the technician in diagnosis of the control system Any time the control senses an error in the system the control will beep at a 1 second interval until the ON OFF key is pressed FAULT CODES PROBLEM Oven Temperature
13. 0 Canadian Models 4 17 16009721 Contents iv 1999 Maytag Appliances Sales Company SECTION 1 COMPONENT DESCRIPTION COMPONENTS Meat Probe Senses the internal tempera ture of products during a baking function The meat probe is an NTC or negative temperature coefficient which means the resistance value decreases as the tempera ture increases See meat probe chart below for resistance values MEAT PROBE Type Calibration NTC Thermistor 9938 ohms 150 F TA 3886 ohms Membrane Switch The means to make switch contact thus instructing the elec tronic control system to perform a desired function The membrane switch is a simple set of two contact surfaces containing conductive material one on the back layer of MYLAR and the other on the front layer of MYLAR There is also a center section of non conductive MYLAR material that has a hole punched out of it at each switch con tact position The thickness of this spacer MYLAR determines the push force required to close the contacts between the front contact strip and the rear contact strip Typically the push force required to close a contact is 12 to 18 ounces Electronic Control programmable soft ware component that controls oven clock timer and various other functions The control maintains oven temperatures in either bake broil or clean is adjustabl
14. 30430P WM27460 WM30460 JJW8527 JJW8530 JJW8627 JJW8630 JJW9527 JJW9530 JJW9627 JJW9630 JMW8527 JMW8530 JMW9527 JMW9530 16009721 COMPONENT DESCRIPTION 1 3 1999 Maytag Appliances Sales Company FAULT CODES PROBLEMS COMPONENTS TO CHECK J2 harness shorted If checks p POWER TO ELEMENT RELAY ENERGIZED 0 DURING TIME OF DAY DISPLAY only change second oven board Over temperature sensed over 620 F2 sensed by control in time of day mode aQ bake mode or over 950 sensed in clean s ge p Oar d Mode See chart for sensor value F3 Cooling fan on with no oven function Ohm sensor wire harness to selected sensor sensor 1 Intermittent sensor or wire F5 element relays disabled cook harness connection 2 Intermittent contact PRB 1 Membrane shorted Shorted key sensed for 32 seconds 2 Display Board 1 Probe jack or harness to probe jack F8 Shorted meat probe alarm 2 Probe sensing temp Above 250 F See chart Door lock safety circuit on power relay PRB board sensed Invalid temp Reading on PRB a a J2 harness ohm wires end to F Communication error between boards end Harness ok replace display board Communication error between boards DOUBLE OVEN ONLY J2 harness ok replace PRB 1 Check sensor and harness Second oven error sensed 2 Replace second oven board 16009721
15. E FROM POWER BEFORE REMOVING WIRE COVER er ne 5 NOTES 1 DOTIED LINES REPRESENT OPTIONAL FEATURES pemen trot HAS REL A lt RELAY BOARD J2 HA NESS MATURA PLUG SU TC R1 BOON RELAY TO BOARD J TCH HARNESS YELLOW PLUG NOTICE ted Le HAE el WIRES PRIOR BIRR bin Y PROP PROPER LER cM AFTER bant Aia OPERANT WiAr c QIAQRAM 2184 301 89 16009721 WIRING DIAGRAM 1999 Maytag Appliances Sales Company 46 si Pal Cl el Ce 4 m P 7 xpo gt 4 7 WIRING DIAGRAM 1999 Maytag Appliances Sales Company 16009721 WWZ27110 WW30110 THERMOSTA BROIL CYCLE SWITCH TAN BROIL LIGHT SWI TCH CONTROL TITE eee wwe LE 4 WIRE IN Bx CABLE RED L1 lt peces Jaga Ma di OO lier TES 2959 THERMOSTAT o Bese Y g hp Ht LIMIT 55 bits SWITCH A Bos Suda 5 5 05 ss BROIL BAKE Lo Sia ELEMENT ELEMENT 5 55 50 done MESE PRE Ed EET Eta 58858386 2 dis os HI LIMIT 4 728 x DOOR ACTUATED SWITCH o DOOR LOCK SwITCHES RELAY CONTACTS q OVEN 7 LOCKED
16. NG 3 1 1999 Maytag Appliances Sales Company options code and the fourth right blue digit is for the door lock switch status code Will activate the beeper 100 as long as the key is pressed Also it will Stop Time Key display the control in the blue time digits and the power relay board 1 0 in the red temperature digits Clock Key Activates all display segments to light Cook Time Key Activates any fault codes stored in the memory The time digits display any fault codes for the membrane and control board The temperature digits display any fault codes for the power relay board NOTE If FO is displayed there has not been any fault codes sensed in that portion of the system Any stored fault code can be cleared to FO after repairs have been made by entering the fast test and pressing both the cook time and stop time keys for 5 seconds Digital Input Keys Activates the display to show the same digit 0 9 that is pressed Temperature Program bake above 500 repress bake pad and hold for 3 4 seconds Offset Change the pad must be re pushed within 3 seconds The digital keys can be used to set the offset between positive and negative Entered values are rounded to the next 5 increment Example pushing key 3 will display a 5 increment Clock and Temperature Change The clock can be set to be displayed in 24 hour form Al
17. NO ONIOIAH3S NOLLVH3dO AdIH3A S 35 NVO NOH 23NNOOSIQ OL S3UIM TIV 138V1 SIW318OHd 9NIHIM STOHINOO ONIDIAH3S N3HM ap one Switeh ss Shut LOCK Unlock MOLES w ees k eo ee O h OPERATION LL DRL COE T BARE JCVRAREICVRET aa Pat 2x EMIA 200 On a RO ess gt x EEE Tz SPECIFIC CYCLE RATES FOR EACH 20 MODE amp SPECIFIC ELEMENT IS AVAILABLE FROM SERVICE 104P007 66 16009721 WIRING DIAGRAM 4 14 1999 Maytag Appliances Sales Company JJW8627 JJW8630 JJW9627 JJW9630 3215802 N d WVYOVIC MOTIIA ss3NuvH HOLMS V000 ss SAHOLUMS 207 3009 OL SSINYYWH 170309 avisu OL gt ine pm m m 4 jeuciido seur L SILON 4 15 WIRING DIAGRAM 1999 Maytag Appliances Sales Company 16009721 JJW8627 JJW8630 JJW9627 JJW9630 TO CONTROL 1 4 4 n n i BLUE PLUG 2 er dee JACK 3 SPECIFIC CYCLE RATES FOR EACH MODE amp SPECIFIC ELEMENT IS WIRING DIAGRAM P N 208512F MODE amp SPECIFIC ELEMENT
18. O NEUTRAL TO OVEN LIGHTS TO UPPER BROIL UNIT TO TO UPPER TO COOLING UTRA BAKE L2 FAN UNIT TO CONVECTION TO LOWER DOOR MOTOR LOCK MOTOR SLOW SPEED TO CONVECTION TO MOTOR LOWER HIGH SPEED BAKE UNIT SC118TIF 16009721 TROUBLESHOOTING 1999 Maytag Appliances Sales Company 214 re ELECTRONIC CONTROL PROGRAMMABLE CHANGES TEMPERATURE OFFSET CHANGE 1 Program bake above 500 degrees F 2 Repress bake pad and hold for 3 to 4 seconds 3 The digital keys can be used to offset between 0 to 35 degrees in increments of 5 degrees 4 The broil key is used to toggle between positive and negative offsets CLOCK AND TEMPERATURE CHANGE 1 Hold either timer pad down during power up 2 The two left digits will display the format of the clock 3 The right digit will display F or C 4 Pushing the bake key will toggle the clock 5 Pushing the broil key will toggle the temperature from to ELECTRONIC CONTROL FAST TEST PROCEDURE 1 Test Function Depressing a key pad allows for testing for an output When the key is released the output is terminated 2 Test Access Hold the stop time key down at power up or for 10 seconds within 5 minutes of power up 3 Test Exit Push the cancel key Test will self terminate after 16 seconds from the last key command chosen 16009721 TROUBLESHOOTING 3 15 1999 Maytag Appliances Sales Company While in the test mode the following outputs may be checked Bak
19. RU wor PRINTED CIRCUIT BOARD UPPER ER URNE E e Hs tow Lascia 1 cali PS TT SPECAC CYCLE RATES FOR KH WIRING DIAGRAM P N 2085138 MALAL FR SME 16009721 WIRING DIAGRAM 4 12 91999 Maytag Appliances Sales Company JJW8527 JJW8530 JJW9527 JJW9530 JMW8530 JMW8527 9527 JMW9530 ONDIAHAS NOLLVH3dO H3dOtid AJIH3A S NOLLVH3d0 ONV H3dOHdMI 3Sn vo 543719099 9NIHIM STOHLNOO SNIDIAH3S NOLLO3NNOOSIG OL SJAM 138V1 NOLNVO OL WVHOVIG 3SV314d G3ddInO3 S34n1V3d OL AINO 413434 H3AO2 SHIM 340134 L93NNOOSIQ 1VNOLLAO 1 SINN G3LLOQ l 4 13 WIRING DIAGRAM 1999 Maytag Appliances Sales Company 16009721 eee JJW8527 JJW8530 JJW9527 JJW9530 JMW8530 JMW8527 JMW9527 JMW9530 NOTES 1 DOTTED LINES REPRESENT OPTIONAL FEATURES RELAY ar LT VIR BLUE PLUG J3 PROBE 7 JACK LA DOOR LOCK MOTOR PCS RELAY Wo gt tem COOLING FAN MOTOR OL MVHOVIQ NYNLAY 3SV31d HADIAUAS 3HIM 9NIAONW3H 340134 LO3NNOOSIQ 39LLON q3ddInO3 S3uniiv34 OL AI
20. Remove the five 1 4 hex screws from the front flange of the oven liner Three screws will be on the top and two on the bottom 16009721 1999 Maytag Appliances Sales Company 3 Grasp the front flange of the oven liner and gently pull forward to remove oven liner from insulation and structure NOTE When replacing oven cavity use pieces of sheet metal on sides and top of oven liner to allow cavity installation without tearing or removing insulation When the cavity is within two inches of being in place remove the sheet metal OVEN HINGE POCKETS 1 Remove oven door following the steps previously described in section on Oven Door Removal 2 Remove hex screws from the lower front closure 3 From each side of the range remove two 1 4 hex screws 4 Replace components and reassemble COMPONENT ACCESS 2 3 16009721 COMPONENT ACCESS 1999 Maytaq Appliances Sales Company 2 4 SECTION 3 TROUBLESHOOTING Test Access The test mode can be accessed by holding the stop time key down at power up or by holding the stop time key down for 10 seconds within 5 minutes of power up mode No other key can be pressed before the stop time key that would block the test mode access Test Exit Exit the test mode by pushing the cancel key or test will self terminate after 16 seconds from the last key command chosen Test mode is perfomed by pushing a keypad and testing for an output response When the keypad is rel
21. UNLOCKED LINE 1 LINE 1 ever UP NO COM MO COu LAMP OPEN T CLOSED tU f CBRE POSED SEE r T SEE Ne LOWER OVEN _ SEE NOTE T Tee D LIGHT SWITCH Live BAKE OPEN CLOSED SEE cre NOTE 1 e 1 CLOSED OFEN SEE NOTE 3 TSEE NOTE 2 1 DOOR 4 Swi veut EO 4 Lt LOWER LAMP 1 CYCLES 60 SECONDS 5 SECONDS BROIL ONLY 54 SECONDS 2 BROIL FULL RATE LO BROIL CYCLES RATE LOWER DOOR 3 FIRST 40 MIN LINE 1 BROIL OPERATING ONLY CYCLING ACTUATED SWITCH AFTER 40 MIN LINE 1 BAKE CYCLING ONLY AT FULL RATE 16009721 WIRING DIAGRAM 4 8 1999 Maytag Applisnces Sales Company WW27210 E are win bot fate See Se ou 1 wa MP O PEAR w DOOR LOCK MOTOR Dri er w RELRY BORRD WRING DIAGRAM P N 2106938 d 16009721 WIRING DIAGRAM 4 9 1999 Maytag Appliances Sales Company WWZ27210 Le SPEC CYCLE RATES FOR EACH WRNG DIAGRAM P N 2106938 16009721 WIRING DIAGRAM 4 10 1999 Maytag Appliances Sales Company WW27430 W27430P WW30430 WW30430P M LI t m RUXILIRRY RELRY BORRD WIRING DIAGRAM P N 2085138 16009721 W 1999 Maytag Appliances Sales Company RING DIAGRAM u WW27430 W27430P WW30430 WW30430P ina ucs wema ataw sanas LI
22. ction The membrane switch is a simple set of two contact surfaces containing conductive material one on the back layer of MYLAR and the other on the front layer of MYLAR There is also a center section of non conduc 16009721 8to 4 tive MYLAR material that has a hole punched out of it at each switch contact position The thickness of the MYLAR spacer determines the push force required to close the contacts between the front contact strip and the rear contact strip Typically the push force required to close a contact is 12 to 18 ounces TROUBLESHOOTING 3 11 1999 Maytag Appliances Sales Company POWER RELAY BOARD DOUBLE WALL OVEN TO TO TO UPPER DISPLAY DOOR PRE BOARD LOCK TO L1 12 JACK Lait TO TO J9 LOWER OVEN NEUTRAL SENSOR TO TO OVEN UPPER OVEN LIGHTS SENSER OVLT L2 TO J2 DISPLAY TO BOARD UPPER BROIL UNIT BROIL TO AUXILLARY id RELAY BOARD TO UPPER DRLK DOOR L2 LOCK COOL MOTOR CVBAK CVRST BAKE CT L2 TO TO UPPER TO L2 COOLING BAKE FAN UNIT TO CONVECTION TO MOTOR CONVECTION SLOW SPEED MOTOR HIGH SPEED 5 116 16009721 TROUBLESHOOTING 3 12 1999 Maytag Appliances Sales Company AUXILLARY RELAY BOARD DOUBLE WALL OVEN TO L1 TO L2 SC117TIF 16009721 TROUBLESHOOTING 1999 Maytag Appliances Sales Company 9 3 13 CIRCUIT BOARD CONNECTIONS DOUBLE WALL OVEN MEMBRANE SWITCH RIBBON TO L1 T
23. e Pad Broil Pad Press the pad in the test mode and the bake relay will be activated Press the pad in the test mode and the broil relay will be activated Convect Bake Pad Press the pad in the test mode and the convect bake relay will be activated Convect Roast Pad Press the pad in the test mode and the convect roast relay will be Oven Light Pad Probe Pad Timer Stop Time Pad Clock Pad Clock Time Pad Digital Input Pads Clean Key 16009721 activated Press the pad in the test mode and the oven light relay will be activated Press the probe pad in the test mode and the probe temperature will be displayed Press the timer pad in the test mode and the factory codes will appear and the oven temp will appear in red Press the stop time pad in the test mode and the beeper will be activated and the control ID will be displayed in the blue digits and the power relay board ID will be displayed in the red temperature digits Press the clock pad in the test mode and all display segments will be activated Press the clock time pad in the test mode and the last fault code sensed in the system will be displayed Press the digital input pads in the test mode and the digit that has been pressed will be displayed Press the clean key pad in the test mode and the state of the door lock switches and the status of the user selectable options will be displayed TROUBLESHOOTING 3 16 1999 Maytag Appl
24. e to maintain correct temperature offsets It is also programmed with self monitoring circuitry which determines if a potential 16009721 unsafe condition is present shuts the sys tem down and displays the appropriate fault code Fault codes are covered in product specifications sections 3 and 4 Touch Sensor Technology With this new technology a positive charge and negative charge is present around each pad This creates an electrostatic field that emanates around below and through the glass front When the consumer touches a key pad this disturbs the electrostatic field and draws capacitance energy This input is read by the module which in turn signals the con troller to respond and the desired function is performed In order for a function to be performed a conductive material must bridge the gap between the negative charge present at each pad Display Board Displays time of day clock oven temperatures and any other function programmed into the electronic control system The display board also acts as the input means from the membrane switch and sends those commands to the power relay board to process implement and monitor Power Relay Board Contains the intelli gence in the electronic control system and controls all oven functions clock timer and various other consumer programmable inputs The PRB has a relay mounted to it for each function it provides Oven Sensor A device to monitor internal oven
25. eased the output is terminated and the display will return to the display The following is a list of key NOTE 1 Each time a key is pressed a tone will sound actions and responses 2 If there is a red dot on the IC chip and the display board when you touch the oven light key the oven light will come on and a beep will occur The beep is to let you know that there is a good circuit in case the light is blown Also when you press the fan speed key on a dual speed downdraft it will beep each time you touch the key The first beep will be the high setting the second beep will be the low setting and the third beep will be off Bake Key Activates bake relay on the power relay board Broil Key Activates broil relay on the power relay board Convect Bake Key Activates convect bake relay CVBAK on the power relay board Convect Roast Key Activates convect roast relay CVRST on the power relay board Oven Light Key Activates oven light OVLT relay on the power relay board See note 2 above Probe Key Activates the display on the control to display the probe temperature Timer Keys Activates the display to show factory codes in the blue displayed digits and oven temperature in red Clean Key Activates blue display digits which shows the state of the door lock switches and the status of the user selectable options See charts on page 1 2 NOTE First left blue displayed digit is for user selectable 16009721 TROUBLESHOOTI
26. iances Sales Company USER SELECTABLE OPTION DISPLAY CODES CONTINUOUS 160 HZ EOC REFERENCE x II gt J1 J2 wire harness connection to control shorted checks ok change control 16009721 TROUBLESHOOTING 1999 Maytag Appliances Sales Company eu DOOR LOCK SWITCH CODES UNLOCKED DOOR CLOSED DISPLAY CODES SWITCH LOCKED SWITCH SWITCH orem 5 3 ow 2 otn CT ow p eese o oe o Foren To test the control the following should be performed For JJW Models Bake Pad Touch the bake pad then touch the auto set pad within 4 seconds of each other The bake relay should engage and the element start to heat Listen for the relay and then check for heat from the element Broil Pad Touch the broil pad and then touch the auto set pad within 4 seconds of each other The broil relay should engage and the element start to heat Listen for the relay and then check for heat from the element Convect Bake Pad Touch the convect broil pad and then touch the auto set pad within four seconds of each other The convect bake relay should engage the fan should come run on low speed and the element start to heat Listen for the relay the fan and then check for heat from the element Convect Roast Pad Touch the convect roast pad and then touch the auto set
27. nt Removal Remove the four 1 4 hex screws Pull broil element into oven cavity to gain access to the electric wiring Reattach by returning to the original position and fastening with four hex screws COMPONENT ACCESS 2 2 Oven Light Bulb can be replaced or accessed by turning the lens counterclockwise to remove the entire oven light The socket can be removed by depressing the spring clips from the rear of the light socket and pushing it into the oven cavity A new oven light socket can be inserted and snapped into position by depressing the spring clips and reattaching in the original position Convection Motor Assembly To access the motor assembly remove the three 1 4 hex screws from the convect cover Remove the cover Remove three additional 1 4 hex screws that secure the convect motor assembly Pull convect motor assembly into the oven cavity dis connecting the electrical quick connect Reattach by returning to original position using reverse procedures OVEN VENT SMOKE ELIMINATOR 1 Remove oven vent and smoke eliminator by using tabs on bottom of smoke elimi nator turning counterclockwise to disen gage the locking ears from the inner insulation retainer 2 To remove the smoke eliminator pull down and align locking ears with notches in oven cavity Reattach by reversing above procedures OVEN CAVITY 1 All internal oven cavity components must be removed prior to oven cavity removal 2
28. orted 2 Display board Door lock safety circuit on power relay PRB board Invalid temperature reading on PRB Check sensor and harness PRB Communication error between boards 1 J2 harness ohm wires end to end Harness ok replace display board Communication error between boards J2 harness ok replace PRB Double Oven Only Second oven error sensed 1 Check sensor and harness 2 Replace second oven board MEAT PROBE Type Calibration NTC Thermistor 9938 ohms 150 F PROBE RESISTANCE VS TEMP TABLE es 210 286 ohms Shorted meat probe alarm 1 Probe jack or harness to probe jack 16009721 TROUBLESHOOTING 3 4 1999 Maytag Appliances Sales Company TROUBLESHOOTING 0 0 13 0 Vdc 212 VAC Resistance Ref Point Signal Ground 12 Vdc Source T1 Secondary Press Cancel 2 Press Cancel 1 Time of Day Mode Cooking Mode Active Oven 1 Time of Day Mode Cooking Mode Active Oven 2 Serial Clock Line cic c gt A 0 0 Vdc 2 8 Vdc 1 2 VAC 2 3 2 2 3 3 5 6 1 3 VAC Transmit Line 25 VAC Receive Line Enable Line J4 2 12 0 Vdc J4 3 12 0 Vdc J4 3 0 7 Vdc PEE NEN UE B3 wave 3 Door 1 Cosed 7 53 oov gt Door 1 Open 54 oov Boor 1 Uniocked __ movi Boor t Locked wave Poor 1 Unlocked ss 00
29. s wide as possible 2 Place an 1 8 pin in the hole on the right and left door hinges see Figure 2 1 3 Remove the screws from each side with a Phillips screw driver Remove the lock plate from each side Figure 2 1 Raise the oven door up to a broil stop position In this position it will be against the 1 8 pin 5 Grasp the door toward the top on both sides Lift the door up and out to re move SERVICING OVEN DOOR 1 Lay the oven door on a protected surface with the inner door panel facing down 2 Remove three screws from lower trim Remove trim piece 3 Slide outer door glass down to disen gage from top trim Remove 4 Remove three screws from top oven door trim Remove the two 3 8 nuts from the door handle bracket 5 Lift up and off This will disengage the side trim as well 6 Remove the oven window pack by re moving the 3 8 nuts from the insulation retainer COMPONENT ACCESS 2 1 For JJW Models 1 Lay oven door on a protected surface with the inner door panel facing down 2 Remove the three screws at the top and the three at the bottom of the door see Figure 2 2 3 Grasp the door assembly at the bottom and lift the assembly off the front door glass 4 Remove the two center screws holding the center bracket in position SC114TIF Figure 2 2 5 Once the center bracket is removed you will see two screws securing the trim to the glass Remove these screws
30. so temperature can be displayed in degree C To access hold either timer keys down on power up The two left digits will display the format for the clock the right digit will display F or C The display can be toggled by pushing the bake or upper bake key to toggle the clock The temperature display can be toggled from F to C by pushing the broil key or upper broil key on a double oven control 16009721 TROUBLESHOOTING 3 2 1999 Maytag Appliances Sales Company 16009721 User Selectable Options Codes Display Door Lock Switch Codes Unlocked Locked Door Closed TROUBLESHOOTING 1999 Maytag Appliances Sales Company Fault Code Components to Chock Power to element relay energized J2 harness shorted If checks ok during time of day display change PRB power relay board NOTE For double oven only change second oven board Ohm SENSOR If checks ok change sensed by control in time of day mode power relay board bake mode or over 950 sensed in See chart for sensor value clean mode Cooling fan on with no oven function Ohm SENSOR wire harness to sensor selected Shorted oven sensor Ohm sensor wire harness to sensor Power to element relays disabled in 1 Intermittent sensor or wire harness cook mode connection 2 Intermittent contact on PRB Over temperature sensed over 620 Shorted key sensed for 32 seconds 1 Membrane sh
31. uS a Wa q i a ne 3 5 MULTIPLEXING CIRCUITRY cr ke 3 8 POWER RELAY BOARD CONNECTION 3 9 DISPLAY BOARD CONNECTIONS ccccssccssssssssscesssssseccecsssersscssescecesersssesesarscsavececsarsecerseeee 3 10 CIRCUIT BOARD CONNECTIONS U nn nn ne ee 3 10 MEMBRANE CONNECTIONS ccccccsccsssscscsssscsscssscssssssseseessacssssestesesssasssssescesceessessceececerese 3 11 SECTION 4 WIRING DIAGRAM 4 1 pig ert RR 4 1 rra PE A 4 3 W27200 W30100 WM27160 WM27260 4 4 W27400 W30400 W30400P WM27460 WM30460 4 6 27210 RE 4 9 WW27430 W27430P WW30430 WW30430P 4 11 16009721 Contents iii 1999 Maytag Appliances Sales Company CONTENTS CONT JJW8527 JJW8530 JJW9527 JJW9530 J J aaa aaa 4 13 JMW8530 JMW8527 JMW9527 9530 Ila 4 13 JJW8627 JJW8630 JJW9627 JJW9630 I naran 4 15 JJW8530 JJW953
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