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1. H away dO L NOHISNOVIA 401 NOHISNOVA NO LON HOLIMS 90 T31NI HOIOW P1326305M WDYRC2 16022042 Rev 0 Replaces 16021599 Rev 1 13 January 2003 Wiring Diagram To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power SCHEMATIC CONDITION DOOR OPEN 208 230V 60Hz 3 WIRE e 4 i INTERLOCK DISPLAY BOARD i SWITCH PRIMARY 5 J CONTROL ANY FMR e n2 AUTO TRANSFORMER 230 208 120 COM OVEN LIGHT NOT ON ALL MODELS AN ANTENNA MOTOR WM BOTTOM ANTENNA MOTOR iw BLOWER MOTOR M 3 SECONDARY 26 INTERLOCK SWITCH MONITOR e CURRENT SENSE i E2 E3 i i HY BOARD HV B
2. R0130113 n BUN BIT P1326305M Ribbon Ribbon p BUN BIT P1329111M E Lf P1329603M Hidden Pad 59001225 Hidden Pad 8 9 P1329615M To test touch panel for proper il operation 1 Identify ribbon traces for selected touch o 2 using chart Hidden Pad 2 Resistance between selected traces Interlock H V board 0 1 Connector pn 3 Pressing touch panel dob x resistance perween Side 4 selected traces is Touch yy Touch Panel N Fe 1 Panel 1 less than 40 ohms Connector i mni mmm p Pini Connector J50 IN 4 1 Test Points B Ribbon Cable Side Touch Panel R0130111 518 1 P1326305M Switch Ribbon Ribbon S adlh P1329111M Trace Trace P1329603M 59001226 51 3 5 SUIS P1329615M sos Seb S2 3 6 9 6 Ribbon Cable S3 3 7 EXER S4 3 8 o 0 lt 15 8 S5 3 9 bon 15 9 To test touch panel for S6 4 5 5 9 lt 3 10 proper operation S7 4 6 S2 o As 1 Identify ribbon traces S8 4 7 for selected touch S9 4 8 panel using chart 10 4 9 2 Resistance between 11 6 9 selected traces 12 5 6 0 ohms 3 Pressing touch panel i Interlock H V board resistance between Pin ixi Ada selected
3. 2 g c 2 o 9 gt L pia OVW MWOllovdvo wv 7 MoOllovdvo NOHL3NDVA H 1 MWaldiLodH HOIH H35NVd NW 31IHM AVES Movi1g LATOIA ania N33Ho MOTIBA AONVeO 54 3002 39VIIOAMOl ZOVLIOA 3009 1016141 ON 19 WV9VIG O4 Anoino OVW OV auvog AYISI VAL
4. ASVLIOA NV Z NOXLLSNOVIA STHCON TIY NO LON WWAX olny do YOLOW NNN3INV qu 1 A z 3905 40102 ua H9IH TA 3000 10990221 ON Xo MI WYYOVIC o o tS o D c gt je 2 o o o D gt 2 c o o o lt o o AX 2 gt 2 D c g c 2 9 gt L 16022042 Rev 0 Replaces 16021599 Rev 1 P1329111M 15 WDYRC2 January 2003 Wiring Diagram To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge ca
5. H NOSI3NOVH H NOY dol Z NOUISNO V O Pz LJ E ual f tal HOLIMS MOOTHALNI AX NO LON P1329615M P1329603M 17 WDYRC2 16022042 Rev 0 Replaces 16021599 Rev 1 January 2003 Wiring Diagram To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power SCHEMATIC CONDITION DOOR OPEN 208 230V 60Hz 3 WIRE INTERLOCK SWITCH PRIMARY AUTO TRANSFORMER 230 208 120 OVEN LIGHT ON ALL MODELS ANTENNA MOTOR BOTTOM TUN ANTENNA MOTOR M BLOWER MOTOR INTERLOCK 3 SWITCH SECONDARY 2 INTERLOCK SWITCH MONITOR BTM MAG TRIAC aS BOTTOM MAGNETRON SEEHV CIRCUIT SNUBER 1 5 TRI
6. o AX 2 gt 2 g c 2 9 gt L c ovn Y woLlovd a NOHISNSVA HOLIMS Yaddan er ASVLIOA H9IH HM AVS ya MOvig 1 na anis NO MOTTJA HO 39NVHO qas 3009 JOVIIOAMOl 39VLIOAH9IH 3009 SO6L6SZL LYVd WVYSVIC a 100112 ov na 1 HOLIMS Ld
7. H V System 2 Top Front Magnetron Left Transformer Top Left Capacitor H V System 3 Bottom Magnetron Right Transformer Right Capacitor Diode Diode Diode Center Triac Left Triac Right Triac January 2003 7 16022042 Rev 0 Replaces 16021599 Rev 1 Power Testing Procedure 44 WARNING To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power Power Test Traditional Test Method Test equipment required Amana power test kit R0157397 Fahrenheit or Menumaster power test kit M95D5 Celsius 1 Fill the plastic container to the 1000 ml line or Wendy s plastic 1 9 x 4 deep pan with cool tap water 2 Using the thermometer stir the water measure and record the water temperature Initial water temperature should be approximately 60 F 16 C 3 Place container on the center of the oven shelf and heat the water for 33 seconds for ovens with more than 1550 watts 2 BAG PITA BACON or 2 DOZ BUN pads will allow enough time to complete the test NOTE Use a watch second hand not the oven timer 4 Stir the water measure and record the temperature of the water after heating time is complete 5 Subtract the starting water temperature Step 2 from the ending water temperature Step 4 to obtain the temperature rise AT 6 See the Traditional Power Test Temperature Chart below NOTES
8. eThe IEC 705 test method requires precision measurements and equipment It is not practical to perform the IEC test in the field To convert the traditional power test results to the approximate IEC 705 rating take the traditional power test results and add 100 watts per magnetron for the unit being tested Example 1682 watts output using the traditional power test for model WDYRC2 300 watts 3 magnetrons X 100 watts 1982 Approximate IEC 705 results eAlways perform power test three times for accuracy changing the water after each test is performed eVariation or errors in the test procedure will cause a variance in the temperature rise Additional power tests should be made if temperature rise appears marginal eLow line voltage will cause lower temperature rise Traditional Power Test Temperature Chart THIRTY THREE 33 SECONDS run time chart for units more than 1550 Watts cooking power Fahrenheit Celsius AT Cooking AT Cooking AT Cooking AT Cooking F Power Output F Power Output C Power Output C Power Output 1540 11 5 1610 1680 12 5 1750 1820 13 5 1890 15 5 2310 16022042 Rev 0 8 January 2003 Replaces 16021599 Rev 1 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 Amana WDYRC Bun Pita Warmer Performance Test for Store Personnel Use This tes
9. Meter should momentarily deflect towards zero then return to over 5 MQ If no deflection occurs or if continuous deflection occurs replace capacitor Terminal to Case Infinite resistance Infinite Between Terminals Less than 1 Q 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 25 Q January 2003 Component Testing Procedures To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power __Illustration Compoen Tet Resuts C8901509 Auto Transformer 230 208 120 0 Transformer Door Closed 2 e _ _ 3 Secondary 4 e 5 Primary 7 se 8 Monitor Lamp receptacle 0130263 Antenna motor R0131016 Power cord 12492202 Relay 0 571 2 This relay contains 2468 J diode in the coil CELL circuit January 2003 Discharge Capacitors Remove all wires from terminals Measure resistance from 230 V to 0 V 208 V to 0 V 120Vto0 V Discharge Capacitor Remove all wires from terminals Measure resistance from 230 to COM 208 to COM 230 to Ground 208 to Ground Terminal 5 to 6 Terminal 4 to Ground Disconnect wires to switch With door open meas
10. Triac 2 left Triac 3 right 59001012 Qty 3 Capacitor N Snubber assembly Magnetron Blower motor 16022042 Rev 0 Replaces 16021599 Rev 1 Disconnect all wires from TCO Measure resistance across terminals Magnetron TCO Cavity TCO Discharge Capacitor Remove diode lead from capacitor and connect ohmmeter Reverse leads for second test Resistance Check Disconnect wires to triac Measure resistance from MT1 to MT2 MT1 to Gate MT2 to Gate All terminals to ground Open at 300 F 149 C and closed at 257 F 125 C Opens at 262 F 128 C Infinite resistance should be measured in one direction and 50KQ or more in the opposite direction NOTE Ohmmeter must contain a battery of 6 volts minimum Caution Do not operate oven with wire to terminal MT2 removed Infinite Approximately 60 Q Infinite Infinite Voltage Check Measure voltage from MT1 to Gate Discharge Capacitor Remove wires from capacitor terminals and connect ohmmeter set on highest resistance scale to terminals Also check between each terminal and Capacitor case Disconnect wires to snubber Measure resistance across terminals Discharge Capacitor 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 0 8 VAC when energized If no voltage check H V board and wiring Between Terminals
11. to Display Board Replace Cable Err3 Failed H V Board Replace H V board Err4 Failed H V Board Replace H V Board Err5 Shorted Touch Panel NOTE If Touch Panel is pressed for more than 30 seconds this error code will appear 1 Disconnect oven from power supply 2 Disconnect side touch panel connector from display board 45 3 Reconnect oven to power supply 4 lf Err5 reappears after 30 seconds replace top touch panel 5 If Err5 does not reappear after 30 seconds replace side touch panel Err6 Failed H V Board Replace H V board HOT Open TCO magnetron Blower motor inoperative Restricted air filter H V board inoperative High ambient temperature Oven operated empty or with light loads Broken or loose wire Door Door Interlock Primary Switch e Verify latch mechanism moves freely on door e Verify J1 connector on display board is properly seated e Test interlock switch assembly and perform door adjustment if necessary e Replace interlock switch assembly 16022042 Rev 0 10 January 2003 Replaces 16021599 Rev 1 Service Test NOTE Unit must be in OFF condition or INITIAL power up mode To Enter Service Test Mode oven door must be closed NOTE Pads will not beep when accessing Service Test Mode To EXIT Service Test Mode press STOP RESET pad Accessing Service Test Mode 1 Press Hidden pad on top touch panel 2 Press S1 S3 S5 S7 and S
12. 9 pads on side touch panel 3 Display indicates Service Test Mode 0 Deactivated Indicates 1 Activated Service Mode Press Pad Display Indication Component Evaluation High Voltage System 1 Displays actual Amperage If no Amperage check for line voltage at H V transformer primary winding If no voltage check 51 1 Interlock switch secondary e Triac 1 H V board relay K8 if 230 VAC will vary by model Toggles Magnetron 1 K9 if 208 VAC and triac 1 Hear ON OFF Timer counts up to 62 seconds and unit shuts off wane T1 G If voltage is present check e H V components and wiring High Voltage System 2 Displays actual Amperage If no Amperage check for line will vary by model voltage at H V transformer primary winding If no voltage check 52 r1 Ei Interlock switch secondary BB LiL 7 Triac 2 H V board relay K4 if 208 VAC K5 if 230 VAC and triac 2 Timer counts up to 62 seconds and unit shuts off drive voltage T1 G e Wiring If voltage is present check e H V components and wiring Toggles Magnetron 2 Top Front ON OFF Displays actual Amperage If no Amperage check for line will vary by model voltage at H V transformer primary winding If no voltage check Interlock switch secondary 53 oa 17 3 3 H V board relay K6 if 230 VAC Toggles Magnetron 3 K7 if 208
13. AC TOP REAR MAGNETRON SEEHV CIRCUIT SNUBBER TRIAC TOP FRONT MAGNETRON SEEHV CIRCUIT SNUBBER HV CIRCUIT 3 PLACES CAPACITOR RESISTOR FER A DAN G ER RECTIFIER SONH HIGH VOLTAGE DOOR CLOSED 2 3 5 gt 4 MAGNETRON 7 ae a 8 WDYRC2 P1329603M P1329615M 4 DANGER HIGH VOLTAGE 16022042 Rev 0 18 January 2003 Replaces 16021599 Rev 1
14. All wires connected to H V board All wires connected to H V board E2 Black wire amp J4 pin 1 White wire E5 Red wire amp J3 pin 1 Gray wire Test mode 1 off line voltage Test mode 1 on 0 volts Test mode 2 off line voltage Test mode 2 on 0 volts Magnetron 2 Top front at 208 VAC Magnetron 3 Bottom at 230 VAC All wires connected to H V board All wires connected to H V board E5 Red wire amp J3 pin 3 Orange wire J4 pin 4 Black wire amp J4 pin 6 Black wire Test mode 2 off line voltage Test mode 2 on 0 volts Test mode 3 off line voltage Test mode 3 on 0 volts Magnetron 3 Bottom at 208 VAC January 2003 All wires connected to H V board J4 pin 4 Black wire amp J4 pin 5 Brown wire Test mode 3 off line voltage Test mode 3 on 0 volts 16022042 Rev 0 Replaces 16021599 Rev 1 Component Testing Procedures To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power H V board 12559103
15. Commercial Microwave Technical Information 208 230 VAC 60 Hz Models WDYRC2 P1326305M P1329111M P1329603M P1329615M e Due to possibility of personal injury or property damage always contact an authorized technician for servicing or repair of this unit e This technical sheet replace 16021599 Rev 1 e Refer to Service Manual RS2240003 for installation operating testing troubleshooting and disassembly instruction 44 CAUTION All safety information must be followed as provided in Service Manual RS2240003 44 WARNING To avoid the risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power WDYRC2 Power Source Voltage AC 208 230 VAC Power Output Microwave Nominal microwave energy IEC705 2000 Watts Power Consumption Dimensions Cabinet in cm Oven Interior in cm Width 13 33 cm Uncrated 115 Crated 123 16 January 2003 1 16022042 Rev 0 Replaces 16021599 Rev 1 Component Testing Procedures 4 WARNING To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power _ Component Resuts Thermal cutout B5684124 B5795306 B8383102 D7681501 MT2 Triac 1 center
16. OARD i MAGNETRON i SEE HV CIRCUIT TOP REAR MAGNETRON SEE HV CIRCUIT TRIAC TOP FRONT MAGNETRON SEE HV CIRCUIT SNUBBER HV CIRCUIT 3 PLACES aa INTERLOCK A DANGER RECTIFIER RUM HIGH VOLTAGE Zire i 2 s2 e 3 5 4 pee ect WDYRC2 P1326305M 44 DANGER HIGH VOLTAGE 16022042 Rev 0 14 January 2003 Replaces 16021599 Rev 1 Schematic ovn OvniL NOHI3NOVA U U v cl 33154933 4 n r 1 33154934
17. Q P1326305M 59001120 P1329111M P1329603M P1329615M J5 pin 50 J1 Pin 14 C 5 ET E7 E4 E6 E5 aige Cocak Js ge ep Pin 1 Pin 1 Function Test Set Up Meter Probe Placement Results Setting Input to H V board At H V board Volts J1 pin 1 Brown wire Line voltage amp J1 pin 2 White wire Output to display Disconnect Volts J5 pin 28 amp 24 VDC board J5 connector J5 pin 50 blower runs continuously NOTE For the following test place oven in Service Test Mode see page XX Relay Function Test Set Up Meter Probe Placement Results Setting K1 at Blower motor Disconnect Ohms J1 pin 1 Brown wire Test mode 5 off no continuity 230 VAC Antenna motor J2 connector amp J2 pin 4 Test mode 5 1 9 line voltage Cavity light K2 at Blower motor Disconnect Ohms J1 1 Brown wire Test mode 5 off no continuity 208 VAC Antenna motor J2 connector amp J2 pin 3 Test mode 5 1 9 line voltage Cavity light 16022042 Rev 0 6 January 2003 Replaces 16021599 Rev 1 Component Testing Procedures To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power Three Magnetron Models eo 000000060 H V System 1 Top Rear Magnetron Center Transformer Bottom Center Capacitor
18. VAC and triac 3 Bottom ON OFF Timer counts up to 62 seconds and unit shuts off NS voltage T1 G e Wiring If voltage is present check e H V components and wiring High Voltage System 3 January 2003 11 16022042 Rev 0 Replaces 16021599 Rev 1 Service Test Press Display Component Evaluation gt This mode is NOT active with this model NOT ACTIVE If no fan operation check e Blower motor and wheel e Antenna motor Toggles e Cavity light if applicable Blower Motor H V board relay K1 230 V Antenna Motor s relay K2 208V Cavity Light if applicable e Wiring ON OFF NOT ACTIVE Bu Ha Displays of Magnetron Hours e This mode is NOT active with this model 2 BU Displays of Door Cycles with a 1 to 1 ratio rounded to the nearest ten LL rn Clears Hours and Cycles press START to activate Resets to 0 NOTE This will not appear on later production models yp e Temperature OFFSET is a NOT applicable with Li 1 00 this model Temperature OFFSET ml IS mode NOT APPLICABLE 16022042 Rev 0 12 January 2003 Replaces 16021599 Rev 1 Schematic o o tS o D c gt je 2 o o o D gt 2 c o o o o lt o
19. edures one through eight listed below have been followed Check grounding before checking for possible causes Be careful of the high voltage circuit Discharge high voltage capacitor When checking the continuity of the switches or the high voltage transformer disconnect one lead wire from these parts and then check continuity with the AC plug removed To do otherwise may result in a false reading or damage to your meter Do not touch any parts of the circuitry on the P C Board circuit since static electric discharge may damage this control panel Always touch yourself to ground while working on this panel to discharge any static charge in your body 208 230 VAC is present in the high voltage circuit board power relay and primary circuit of low voltage transformer When troubleshooting be cautious of possible electrical hazard When testing convection operation convection fan may start at any time or if oven is hot Error Codes During operation the display may show the following service codes NOTE Before scheduling service for any error codes instruct customer to unplug oven for 1 minute reconnect power and retest If unit operates properly no service call is required Display Description Corrective Action Erri Failed H V Board Replace H V Board Err2 Failed H V Board Replace H V board Shorted Touch Panel Replace Touch Panel Shorted Display Board Replace Display Board Shorted Cable HV
20. pacitor before servicing unless testing requires power SCHEMATIC CONDITION DOOR OPEN 208 230V 60Hz 3 WIRE INTERLOCK SWITCH PRIMARY DISPLAY BOARD ets J1 2 i AUTO TRANSFORMER CONTROL XFMR J24 i OVEN LIGHT NOT ON ALL MODELS i 23 f ANTENNA MOTOR A My 2 2 ANTENNA MOTOR YY BLOWER MOTOR INTERLOCK 3 SECONDARY HVBOARD TRIAC BOTTOM MAGNETRON SEE HV CIRCUIT SNUBBER i HV BOARD 208 2 TRIAC TOP REAR MAGNETRON SEE HV CIRCUIT SNUBBER HV BOARD TF MAG TRIAC TOP FRONT MAGNETRON SEE HV CIRCUIT SNUBBER HV CIRCUIT 3 PLACES CAPACITOR A DANGER RECTIFIER SCHEMATIC HIGH VOLTAGE DOOR CLOSED 77 2 3 4 7 ote WDYRC2 P1329111M 44 DANGER HIGH VOLTAGE 16022042 Rev 0 16 January 2003 Replaces 16021599 Rev 1 Schematic o o D c gt je 2 o o o D gt 2 c o o o lt o o AX 2 gt
21. t should be performed once a month or anytime unit performance is suspect 1 Fill the plastic 1 9 x 4 deep pan used to hold bun bag clips with tap water Do not use metal pan 2 With an accurate digital thermometer probe gently stir the water in the pan and write down the water temperature Remove thermometer probe Position pan in center of oven 4 Close the door and press the 2 DOZ BUN start button Immediately after the end of cycle tones begin open the door and insert the digital thermometer probe into the water 6 Gently stir the water in the pan until the maximum water temperature is observed approximately 10 15 seconds 7 Write down the maximum water temperature 8 Subtract the initial water temperature reading from the last temperature reading 9 f the temperature difference is greater then 44 F the unit is performing within normal power tolerances 10 If the temperature difference is less than 44 F the unit may not be operating correctly Do not continue to use this unit until a qualified service technician has looked at the unit and corrected any problem January 2003 9 16022042 Rev 0 Replaces 16021599 Rev 1 Display Diagnostics To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires it 4 CAUTION All repairs as described in this troubleshooting section are to be performed only after the caution proc
22. traces is EN J1 lt less than 40 ohms sia EL QN Top Touch uo Touch Panel jt in AM UTE Panel Connector TOR AA ____ Connector A Test Points B 16022042 Rev 0 4 January 2003 Replaces 16021599 Rev 1 Component Testing Procedures To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power Display board 12502401 Interlock H V board Pini Connector Connector Side Jb f ues Touch que J4 Touch Panel 4 KO d Panel Connector NE ee Pin 1 Connector NK f Test Points Function Test Set Up Meter Probe Placement Results Setting Input to Display At Display Volts Test points A and B 3 0 VAC Board Board If voltage is present and no display is indicated replace display board If no voltage is present check wire harness connections and H V board H V Board Relay Test Function Magnetron 1 Top rear at 230 VAC Test Set Up All wires connected to H V board Meter Probe Placement Setting E2 Black wire amp J4 pin 2 Red wire Results Test mode 1 off line voltage Test mode 1 on 0 volts Magnetron 1 Top rear at 208 VAC Magnetron 2 Top front at 230 VAC
23. ure resistance from Terminal 2 to 3 Terminal 4 to 5 Terminal 7 to 8 With door closed measure resistance from Terminal 2 to 3 Terminal 4 to 5 Terminal 7 to 8 Test continuity of receptacle terminals Remove all wires from terminals Measure resistance from Terminal to terminal Measure resistance of wires Measure resistance from Terminal 0 to terminal 1 coil Approximately 38 Approximately 37 Q Approximately 25 Q Less than 1 1 0 Less than 1 Q Infinite Infinite Less than 1 Q Approximately 70 Q Infinite Infinite Indicates continuity Indicates continuity Indicates continuity Infinite Indicates continuity if bulb is good and screwed in Approximately 12K Continuity should be indicated on each wire Verify polarity and grounding Approximately 6 to 7 MQ NOTE Analog meter is recommended for measurement NOTE If using a digital meter it must contain a battery of 6 volts minimum 16022042 Rev 0 Replaces 16021599 Rev 1 Component Testing Procedures To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power Top Touch Panel

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