Training Manual
Contents
1. TOROID MAGNE TRON BOTTOM Y L PNR GN YL E CAPACITO CAPACI TOR TRANSF ORMER BOTTOM TOP 7 RECTIFIERS RECTIFIERS Sample Oven Wiring Diagram Two 2 Tube Magnetron 252. SNUBBER CONTROL BOARD INTERLOCK SWITCH PRIMARY POWER TRANSFORMER CAPACITOR RESISTOR 5 FA V RECTIFIER 77 177 MAGNETRON A DANGER HIGH VOLTAGE Sample Oven Schematic One 1 Tube Magnetron 22 Wiring Schematic Diagrams WARNING To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power ANTENNA G DIAGRAM MOTOR NO 12845002 BLOWER O MOTOR RE CODE IGH VOLTAGE LOW VOLTAGE COM NC NO PRIMARY SNUBBER BK 1 COM BU 2 NC NO SY zOUuUu uo ounux zOUU cUO cUuu BR CONTROL MONI TOR BOARD OVEN LIGHT NOT ON ALL MODELS 876 5 4 3 2 1 VI YL H D SECONDARY OVEN THERMAL LINK BK RD O MAGNE TRON IIFA TOROID BK BR L1 L1 LINE LINE LOAD 12 FILTER 12 TRANSFORMER CAPACITOR CL GN YL BU RECTIFIER Sample Oven Wiring Diagram One 1 Tube Magnetron 23 Wiring Schematic Diagrams WARNING To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power 2 GE RE ITCH DOOR CLOSED SCHEMAT IC PRIMARY C P NO CONDITION DOOR OPEN MONITOR FOWER SE
3. 681 98 1 Continuity Start 581 981 Continuity Stop Reset 4 amp 1 9 amp 1 Power Level 4 amp 1 8 amp 1 2 5 amp 1 8 amp 1 Continuity Time Entry 6 amp 1 8 amp 1 Continuity 781 881 Continuity Touch Panel Continuity is indicated as 100 Q and Pad Trace Measurement Assembly below measure both 2 881 108 1 Continuity Pin 1 Ground 3 781 108 1 Continuity 4 681 108 1 Continuity 5 581 108 1 Continuity 6 4 amp 1 10 amp 1 Continuity 7 38 amp 1 108 amp 1 Continuity 8 8 8 1 9 8 1 Continuity 9 7 amp 1 9 amp 1 Continuity 0 681 981 Continuity Start 581 98 1 Continuity Stop Reset 481 981 Continuity Power Level 48 1 88 1 Continuity 2 5 8 1 8 8 1 Continuity Time Entry 6 amp 1 8 amp 1 Continuity 781 881 Continuity Conditions Initial Power Up Condition Apply power to oven with door closed Idle Condition Oven plugged in display blank no other components operating Standby Condition Open oven door light and motors operate Cook Condition Food load in oven cook cycle initiated 19 Power Testing Procedure To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power All Amana and Menumaster microwave oven power outputs are rated using the IEC705 standards Using the IEC705 test method requires precision measurements and equipment that is not practical to be
4. 12135804 prior to December 2003 10 INTERLOCK SWITCHES R0150154 Early Production Switch R0000277 Replacement for Early Production Switch eJ Ta Primary i Monitor 2 e Mounting screws N Mounting screws fo ET Logic lt gt 2 Secondary Primary 8 Logic Mounting screws Secondary 11 SWITCH REPLACEMENT DOOR ADJUSTMENT To avoid risk of electrical shock personal injury or death disconnect electrical power before servicing 1 Remove retain two 2 screws securing switch to cavity Remove switch 2 Position new switch assembly into cavity opening e First insert bottom ramp of switch into bottom opening e Tilt switch upward and insert top ramp of switch into top opening e Be sure both ramps are fully protruded through the front frame of cavity 3 Loosely install screws removed in step 1 4 Push and hold switch assembly towards front of oven and tighten screws 5 Transfer wires to new switch 6 Secure wires to switch bracket using plastic wire ties IMPORTANT It is necessary to adjust the door assembly for correct switch function 7 Tape shims 12382602 and 12019302 to door as shown 12019302 Shim 030 in 75 mm 12382602 Shim 060 in 1 5 mm 12 8 With door closed loosen door hinge bolts 1 2 turn Lift upward on door using the door handle 10 With left ha
5. B Refrigerator Fzr Type Attention Models Issue Warranty Action Room Air Cond EXCMW 125 B Page 1 of 1 Parts Manual Update Policy Letter Y Service Information Service Managers Service and Parts Managers CRC and HDC Compact Commercial Ovens Broken tray as a result of arcing at front lip of cavity Ceramic trays may be claimed under warranty only if damage was caused by antenna failure arcing Trays are not covered under warranty if there is evidence that damage was caused by impact thermal shock frozen or refrigerated product placed on warm tray oven operated with metal pans oven operated without a food load or lack of proper cleaning and maintenance NOTE Typical symptoms of metal pan usage or empty cavity operation include arc spots on the front lip of cavity 1 to 2 inches from either side If encountering arcing at front lip of cavity proceed as follows Check antenna operation if either antenna is stalled hot spots will occur Remove oven tray Thoroughly remove any carbon build up from front lip using fine grade sandpaper Thoroughly clean cavity and front lip removing all old RTV Before installing new tray apply a generous bead of RTV on the front lip of cavity see below Install new tray and reseal using instructions supplied with the tray If arcing has damaged the oven door replace inner oven door and inspect door ring weldment for arcing 8 Replace door ring
6. highest resistance scale to terminals Also check between each terminal and capacitor case Disconnect wires to snubber Measure resistance across terminals Discharge Capacitors Remove wires from magnetron and connect ohmmeter to terminals Also check between each terminal and ground Remove all wires from motor Measure resistance across coil Measure resistance Line to Fine eodd Load to Load Line to Load Any terminal to Earth Test resistance of wires 17 Open 104 219 Open 138 280 F Closed 82 180 Infinite resistance should be measured in one direction and 50KO or more in the opposite direction NOTE Test meter must contain a battery of 6 volts minimum Caution Do not operate oven with wire to terminal MT2 removed Infinite Approximately 40 O or more Infinite Infinite Between Terminals Meter should momentarily deflect towards zero then return to over 5 If no deflection occurs or if continuous deflection occurs replace capacitor Terminal to Case Infinite resistance Between Terminals Less than 1 O Each terminal to ground measures Infinite resistance NOTE This test is not conclusive If oven does not heat and all other components test good replace the magnetron and retest Approximately 30 O 8 M OQ 8 M OQ Continuity Infinite Continuity Component Specifications To avoid risk of electrical shock personal
7. weldment if it is damaged To ensure proper operation use the instructions in the Service Manual when reinstalling the oven door NOOR Apply generous bead of RTV along this lip before installing oven tray Air Flow Air filter must be in place and cleaned regularly On two tube ovens To ensure proper spacing and air flow air ducts must be in place if oven is installed in a closed back installation Improved Filter for 6 Compact Ovens New improved filter kit 12002550 is now available from Maytag Services and in production ovens beginning December 2003 The new filter is more durable easier to remove clean and reinstall New filter kit part number 12002550 will replace old filter part numbers 12135801 12135802 12135803 12135804 When servicing microwave ovens make sure to check the air intake and exhaust for obstructions and for a clean filter Remember cool components last longer Bottom retainers on newer units SESS ae abeu Tabs New Filter 12002550 December 2003 and later NOTE When installing new style filter on older units with side retainers it will be necessary to remove the securing tabs located on each side of the filter No modification is necessary when installing on units with bottom retainers Old Style Filter 12135801 12135802 12135803
8. 0 Watts 2100 Watts Minimum temperature rise AT 21 F 11 5 C Operating frequency 2450 MHz Power Consumption Cook condition microwave 3100 Watts 13 5 A 3100 Watts 13 5 A Cabinet Width 423 mm Height 335 mm Depth 578 mm Oven Interior Width 331 mm Height 175mm Depth 305 mm Crated 31 kg 31 kg ane Quick Start Reference Guide HIGH PERFORMANCE HAS A NAME CLEAN FILTR This oven displays CLEAN FILTR at user defined intervals When the message displays Amana recommends cleaning the air filter thoroughly Cleaning the air filter will not shut off the message The message will stop displaying automatically after 24 hours Depending on microwave use and environmental conditions the filter may need to be cleaned more frequently Once the frequency is determined set the option for the appropriate time frame Preprogrammed Pads 4 Tocook food using preprogrammed cooking sequences 1 Open oven door and place food in oven Close door Press desired pad Oven begins to cook At end of cooking cycle oven beeps and shuts off PION X2 Programming some models To change the cooking factor Open oven door 2 Press and hold pad 1 for approximately 5 seconds Press pad to be reprogrammed Press the X2 pad Press a numbered pad to change the cooking factor Cooking factor can be set from 10 to 100 Default is 8096 Pad 5 would change the cooking factor to 5095 6 Pr
9. CONDARY C D NO AN 2 UPPER ANTENNA MOTOR M ey 4 BLOWER Y 4 LIGHT H NOT ON ALL MODELS LOWE NTE NNA MOTOR LY TOP MAG TCO Ve BOT MAG TCO INTERLOCK SWI TCH MONI TOR SECONDARY o SWITCH x NI R CONTROL SNUBBEI BOARD 8 77 INTERLOCK SWITCH PRIMARY POWER TRANSFORMER CAPACITOR CAPACITOR RESISTOR RESISTOR fd RECTIFIERS 17 HIGH VOLTAGE Sample Oven Schematic Two 2 Tube Magnetron 24 Wiring Schematic Diagrams 4 amp WARNING To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power NG DIAGRAM NO 12845102 BLOWER MOTOR IRE CODE HIGH VOLTAGE LOW VOLTAGE OLOR CODE DO lt lt 0 lt 0 lt I lt DAACZ AAV CONTROL MONI TOR BOARD OVEN LIGHT NOT ON ALL MODELS 87654321 VI WH RD SECONDARY OVEN ERMAL LINK O MAGNE TRON LE rii TOROID
10. Ribbed side of gear Replacement must face oven cavity clip 15 Disassembly WARNING To avoid the risk of electrical shock personal injury or death disconnect power to oven and discharge capacitors before following any disassembly procedure Spill shield Cavity thermal cutout Blower motor Snubber SA Trac Lamp and receptacle High Voltage Transformer Power cord Magnetron TCO e Lamp Terminal 5 barrier Block Line filter Mounting bracket Located behind exhaust duct da DANGER High Voltage Components 16 Component Specifications 4h WARNING To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power Jeepen Component DEER Thermal Cutout 1100 Watt units Aug 1400 1800 and 2100 Watt units Diode Assembly M INE Blower Motor Line filter Wire Harness Disconnect all wires from Measure resistance across terminals Cavity Thermal Fuse Magnetron TCO Discharge Capacitors Remove diode lead from capacitor and connect ohmmeter Reverse leads for second test Disconnect wires to triac Measure resistance from MT1 to MT2 MT1 to Gate MT2 to Gate All terminals to ground Discharge Capacitors Remove wires from capacitor terminals and connect ohmmeter set on
11. Training Manual 6 50 Hz Compact Models E SN MENUMASTER HDC 5 50HzR2 COMMERCIAL MICROWAVE OVEN pane 2001 www amanacommercial com Model Number List MCHDC521 P1331246M P1325203M P1330512M P1331213M P1331235M P1325207M P1330516M P1331217M P1331239M P1325211M P1330520M P1331221M P1331243M P1325201M P1330510M P1325213M P1331211M P1331233M P1325205M P1330514M P1325214M P1331215M P1331237M P1325209M P1330518M P1325215M P1331219M P1331241M P1331224M P1331245M UHDC5112 UHDC514 UHDC5142 UHDC518 UHDC5182 CDEC14E2 CDEC18E2 CDEC21E2 CHDC5142 CHDC5182 CHDC5212 P1331225M P1325204M P1330513M P1331214M P1331236M P1325208M P1330517M P1331214M P1331240M P1325212M P1330517M P1331222M P1331244M P1325202M P1330511M P1331212M P1331234M P1325206M P1330515M P1331216M P1331238M P1325210M P1330519M P1331220M P1331242M P1331251M P1331252M P1331253M P1331248M P1331249M P1331250M Table of Contents Model Number 1 eL 2 Table Ol Contents CE 3 iii teli iii 4 Quick Start Reference Guide i 5 Inner Door Window Removal 7 Technical Bulletin CR 236 B Broken 8 A A e te
12. e Dr E EH Be BP FEE aequ TA e es 9 Improved Filter for 6 Compact Ovens 10 Interlock melde Qu pU med eel med co fud cie me Ro Qu e Rud ede mud e mu dde 11 Switch Replacement Door Adjustment 12 Touch Panel and Control Board 13 15 5 6 PEE 14 16 Component Specifications nnne 17 19 Power Testing Procedure i 20 Isolation Test Two Magnetron Models ii 21 Wiring and Schematic Diagrams 22 25 CAUTION All safety information must be followed as provided in Service Manual RS5320013 4h WARNING To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power HDC511 HDC514 HDC518 HDC511A HDC514A HDC518A DEC11E Cer DEC14E SURI DEC18E CHDC514 CHDC518 CDEC14E2 CDEC18E2 Voltage AC Amperage single unit Frequenc Single phase 3 wire earthed Nominal microwave energy IEC705 1100 Watts Minimum temperature rise AT Power Consumption Cook condition microwave 1800 W 8A 1800W 8A 2300W 10A 2300W 10A 3000W 13A 3000 W 13 A Cabinet Oven Interior UHDC511 UC11E Width Height Depth 29 kg 29 kg 31 kg 31 kg 31 kg 31 kg DEC21E2 HDC5212 MCHDC521 CHDC5212 CDEC21E2 Power Source Voltage AC 230 VAC Amperage single unit 32 A Frequency 50 Hz Single phase 3 wire earthed Power Output Nominal microwave energy IEC705 210
13. ess START pad to save changes o Ro Refer to Product Safety Manual for Safety Statements Complete Owner s Manual available online Oven Clearances A Allow at least 7 17 8 cm of clearance around top and sides of oven Proper air flow around oven cools electrical components With restricted air flow oven may not operate properly and life of electrical parts is reduced B Allow at least 2 915 6 5 cm between air discharge on back of oven and back wall So how do I use Manual Operation To cook food using a specific entered time and power level 1 2 3 Open oven door and place food in oven Close door Press TIME ENTRY pad and enter cooking time Press POWER LEVEL pad to program level of microwave power if desired For a lower microwave power press pads 1 for 10 through 9 for 90 or 0 for no microwave energy If stage cooking is desired press TIME ENTRY pad and repeat steps 2 through 4 Press START pad At end of cooking cycle oven beeps and shuts off Programming Items cana 7 NO Open oven door Press and hold pad 1 for approximately 5 seconds Press pad to be reprogrammed Enter cooking time by using the number pads Press POWER LEVEL pad to program level of microwave power if desired For a lower microwave power press pads 1 for 10 through 9 for 90 or 0 for no microwave energy Press TIME ENTRY pad to add up to four additional cooking stages Total cooking time cannot
14. exceed 60 minutes Enter cook time and power level as in steps 4 and 5 Press START pad to set new programming changes to the pad TE To discard changes press STOP RESET pad or close oven door X2 Pad some models 1 2 3 4 Open oven door and place food in oven Close door Press X2 pad Press desired preprogrammed pad or pad sequence Oven begins cooking Displayed cooking time is the total of original cooking time and added X2 time The switching operation of this microwave oven can cause voltage fluctuations on the supply line The operation of this oven under unfavorable voltage supply conditions can have adverse effects This device is intended for the connection to a power supply system with a maximum permissable system impedance Zmax of 0 31 Ohms at the interface point of the user s supply The user has to ensure that this device is connected only to a power supply system which fulfills the requirement above If necessary the user can ask the public power supply company for the system impedance at the interface point Quick Start Reference Guide Refer to Product Safety Manual for Safety Statements Complete Owner s Manual available online Can change an option Options such as single or double pad programming beep volume and maximum cooking time can be changed to suit individual preferences To change options 1 Open oven door If door is closed or RESET pad is pressed before programming is comp
15. f not replace transformer 10 lt 10 lt 10 38 45 Q 5 Infinite resistance If not replace transformer Approximately 12 KQ Infinite Infinite Continuity Continuity Continuity Infinite Component Specifications To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power Illustration Component Testing Resuts Controller board Line voltage to control board P2 connector Pin 1 Pin 3 Line voltage All Conditions Output drive voltage to triac Triac terminals 0 Idle and Standby 0 9 VAC Cook Fan relay controls blower motor antenna motor s and oven light Control board Line voltage Idle Terminals C J 0 VAC Standby and Cook Cook relay Control board Line voltage Idle Terminals 0 volts Standby and Cook P1 connector used for touch ERROR CODES panel ribbon Replace Control Board Replace Control Board Replace Control Board Replace Control Board Replace Touch Panel Replace Control Board Touch Panel Continuity is indicated as 100 O and Pad Trace Measurement Assembly below measure both 8 amp 1 10 amp 1 Continuity Pin 1 Ground 7 amp 1 1081 Continuity 681 108 1 Continuity 581 108 1 Continuity 4 amp 1 10 amp 1 Continuity 3 amp 1 10 amp 1 Continuity 8 8 1 9 8 1 Continuity 7 amp 1 9 amp 1 Continuity
16. ime countdown after door is opened during cycle Cancels heating time count down after door is opened during cycle 7 OP 70 Allows 60 minutes of heating time Maximum Heating Time Allows 10 minutes of heating time 8 OP 80 Allows use of preprogrammed pads only Manual Operation Allows use of manual time entry and preprogrammed pads 9 OP 90 Allows 10 0 9 preprogrammed pads Double Digit Operation Allows 100 00 99 preprogrammed pads Reset Door Open 0 OP 00 Do not display message Clean Filter Message OP 01 Display message for 24 hours every 7 days OP 02 Display message for 24 hours every 30 days OP 03 Display message for 24 hours every 90 days Part No 12834401 Amana For full product documentation visit 2003 Amana Appliances Printed in U S A 12 03 t www amanacommercial com wavelink Amana lowa 52204 m Inner Door Window Removal Open oven door Remove screws on hinge side Beginning at the bottom carefully insert 1 putty knife between inner and outer door Pry up on inner door to release tabs 2 tabs per side Work in a clockwise direction to release all tabs see illustration below Remove Screws 4h CAUTION When glass retainer is removed be careful glass does not fall out of frame Bulletin Y Comm Microwave Dehumidifier Dishwasher Domm Microwave Export Comm Heating Product Date July 31 2001 Laundry Product PTAC Products Range Product No CR 236
17. injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power Mustration _ Component Testing Transformer 1100 Watt 3 gt 230V 1o COM Transformer 1400 1800 and 2100 Watt 1 4 m ss Vi ni 2 Stirrer motor Interlock switch assembly 5 9 Se gt Monitor Discharge Remove all wires from terminals and measure resistance from 220 to Common 230 to Common Terminal 5 to 6 Terminal 4 to Earth screw on transformer Terminal 4 to any other terminal 3 Gray Discharge Capacitor Remove all wires from terminals and measure resistance from 230 to Common Terminal 5 to 6 Terminal 7 to 8 1 Terminal 4 to Earth screw transformer Terminal 4 to any other terminal Remove all wires from motor Measure resistance across terminals Disconnect wires to switch With door open measure resistance from Terminal C to Primary Terminal C to NO Secondary Terminal C to Monitor With door closed measure resistance from Terminal C to NO Primary Terminal C to Secondary Terminal C to NC Monitor Door Closed NC Monitor NO Primary NO Secondary 18 This transformer is equipped with a 155 C thermal cutout 1 3 Q 1 3 Q 10 700 Infinite resistance I
18. lete changes are discarded and microwave exits programming mode 2 Press and hold pad 2 for approximately 5 seconds This begins options mode e Microwave will beep and displays 3 Press number pad that controls option to be changed Seetable below for options Current option will display 4 Press number pad again to change the option Each time pad is pressed option will change Match code displayed with code for desired option 5 Press START pad to save changes To change additional options repeat steps 3 and 4 Changes appear after door is closed or STOP RESET pad is pressed No metal pans Numbered Pads Display Options Factory Settings in Bold 1 3 second continuous beep End of Cycle Beep Continuous beep until door is opened 5 beeps bursts until door is opened 2 Eliminates beep Speaker Volume Sets volume to low Sets volume to medium Sets volume to high 3 OP 30 Prevents beep when pad is pressed Key Beep OP 31 Allows beep when pad is pressed 4 15 seconds after oven door is opened keyboard disabled Keyboard Enable 30 seconds after oven door is opened keyboard disabled Window 1 minute after oven door is opened keyboard disabled 2 minutes after oven door is opened keyboard disabled 5 OP 50 Prevents adding heating time while oven is heating Add Time During Allows heating time to be changed while oven is heating when a memory pad Heating is pressed 6 Allows oven to resume heating t
19. nd clamp door to cavity on hinge side of door 11 While holding door in place tighten hinge bolts in the order shown 12 Open and close door several times to check switch operation NOTE If switches do not activate check condition and alignment of door and hinges 13 Remove shims TOUCH PANEL CONTROL BOARD PIN CONNECTOR Corrective Action Replace Board Replace Board Replace Board Replace Board Replace Touch Panel Replace Board 13 Disassembly A WARNING To avoid the risk of electrical shock personal injury or death disconnect power to oven and discharge capacitors before following any disassembly procedure Component Location Screws Diode location single magnetron N aA ovens Capacitor aA Diode location 2 magnetron ovens Tray supports Oven Tray Grease Shield Interlock switch assembly High Voltage Components 14 Disassembly WARNING To avoid the risk of electrical shock personal injury or death disconnect power to oven and discharge capacitors before following any disassembly procedure Antenna M Le otor A AA DANGER TR a High Voltage Components 4 Magnetrons Antenna assembly top Antenna Motor eL ES gt NS Antenna assembly bottom Washer o Snap Ring NOTE Raised rib on edge of washer must face away from cavity Original Clip Gear NOTE
20. performed in the field Using the test shown below will indicate if the oven performance is satisfactory Test equipment required e 1000 ml test container and thermometer Power test kit 1000100006 e Digital watch watch with a second hand for use on ovens with electromechanical timers Important Notes e Low line voltage will cause low temperature rise power output e Ovens must be on a dedicated circuit properly grounded and polarized Other equipment on the same circuit may cause a low temperature rise power output e This test and results are not a true IEC705 test procedures and are only intended to provide servicers with an easy means of determining if the microwave oven cooking output is correct Procedure 1 Fill the test container to the 1000 ml line with cool tap water NOTE Water temperature should be approximately 60 F 16 C 2 Using the thermometer stir water for five to ten seconds measure and record the temperature 3 Place test container of water in the center of oven cavity and close door 4 Heatthe water for a 33 second full power cycle NOTE Use a digital watch or a watch with a second hand for ovens with electromechanical timers 5 Atend of the cycle remove test container Using the thermometer stir water for five to ten seconds and record temperature T2 6 Subtract the starting water temperature T1 from the ending water temperature T2 to obtain the temperature rise AT 7 If the
21. r wire connection from both capacitors and position wire to prevent any short to electrical components 4 Follow the guidelines for performance test 1000 ml of 60 F 16 C water for 33 seconds and record the temperature difference and confirm antenna is rotating 5 To prepare oven for UPPER MAGNETRON high voltage system test check unplug oven and discharge capacitors 6 Remove Red High Voltage Transformer wire 4 from left hand capacitor looking from the rear and move to the right hand capacitor Repeat step 4 above Example using model HDC18 Performance test with both magnetrons operating should be minimum of 18 F 10 C Temperature rise With either magnetron operating individually temperature rise should be a minimum of 9 F 4 5 C for each system Gray jumper from LH to RH capacitor Wiring Schematic Diagrams WARNING To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power 250V 50HZ S WIRE DOOR CLOSED SCHEMATIC Sue i Ses CONDITION DOOR OPEN MONI TOR c wc POWER 6 0 CORD SECONDARY NO 23 tf A gt UPPER VUN MOTOR d BLOWER MOTOR euh OVEN LIGHT NOT ON ALL MODELS 4 INTERLOCK SWITCH SECONDARY 5 MONI TOR SWITCH ah
22. temperature rise AT meets or exceeds the minimum the test is complete If the temperature rise AT fails to meet the minimum temperature rise test the line voltage to verify it is correct Then repeat steps 1 6 making sure to change the water If the temperature rise AT fails to meet the minimum temperature rise again the oven will require service Minimum Temperature Rise at Thirty Three 33 Seconds Run Time Cooking Cooking AT Cooking AT Cooking Power Output Power Output C Power Output C Power Output O cda 1900 20 Isolation Test Two Magnetron Models To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power If the customer is complaining of low heat it may be necessary to isolate the upper and lower high voltage systems Method 1 1 Be sure outercase wrapper and back panel are installed on the oven Place a water load in the oven Confirm antennas are rotating Operate the oven for 60 seconds on full power Discharge air from both magnetrons should be warm oa If the discharge air from magnetron is significantly cooler than the other a problem may exist with the cooler magnetron Method 2 1 Unplug oven and discharge capacitors 2 To prepare oven for LOWER MAGNETRON high voltage system check locate the Gray 3 jumper wire that connects between the capacitors 3 Remove jumpe
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