iGrafx Designer 1
Contents
1. if 230 VAC and triac 2 Timer counts up to 62 seconds and unit shuts off ien voltage T1 G e Wiring If voltage is present check e H V components and wiring Displays actual Amperage If no Amperage check for line High Voltage System 3 will vary nS voltage at H V transformer primary winding If no voltage check gt RN Interlock switch secondary 3 H I Triac 3 H V board relay K6 if 230 VAC Toggles Magnetron 3 K7 if 208 VAC and triac 3 Bottom ON OFF 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 March 2002 13 16021599 Service Test Press Display Component Evaluation 4 e This mode is NOT active with these models 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 6 NOT ACTIVE Ha Displays of Magnetron Hours e This mode is NOT active with these models 2 BU Displays of Door Cycles with a 1 to 1 ratio rounded to the nearest ten 9 r r Clears Hours and Cycles press START to activate Resets to 0 NOTE This will not appear on later production models yp e Temperature OFFSET is2. Approximately 25 Q Less than 1 1 Q Less than 1 Q Infinite Infinite Less than 1 Q Approximately 70 Q Infinite Infinite Terminal 2 to 3 Terminal 4 to 5 2 e 3 Secondary 4 5 Primary 7 e e 8 Monitor G B8371401 Lamp receptacle a N Antenna motor 10098917 Power cord 16021599 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 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 March 2002 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 Touch Panel R0130113 Ribbon Ribbon Trace Trace Faena s 9 To test touch panel for proper 5 operation 1 Identify ribbon traces imus J lt for selected touch pa
3. CI CI NOT applicable with Li Li these models Temperature OFFSET NOT APPLICABLE 16021599 14 March 2002 Wiring Diagram and Schematic To avoid risk of electrical shock personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power March 2002 15 16021599 Wiring Diagram and Schematic 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 Li GND L2 Va INTERLOCK DISPLAY BOARD SWITCH FUSE PRIMARY J6 J1 3 5 a HV BOARD J5 CONTROL VON I XFMR NUN T Jt 1 2 AUTO TRANSFORMER OVEN Ki 120 PMO ON N YN A YMO ON Joa 230 208 120 com OVEN LIGHT K2 NOT ON ALL MODELS 42 3 TOP BTM MAG ANTENNA MOTOR J8 4 TCO BOTTOM ANTENNA MOTOR BLOWER MOTOR a POWER INTERLOCK RELAY NOT ON ALL MODELS SWITCH SECONDARY 6 INTE
4. Ohms J1 pin 1 Brown wire Test mode 5 off no continuity 230 VAC Antenna motor J2 connector amp J2 pin 4 Test mode 5on 1 Q line voltage Cavity light K2 at Blower motor Disconnect Ohms J1 pin 1 Brown wire Test mode 5 off no continuity 208 VAC Antenna motor J2 connector amp J2 pin 3 Test mode 5on 1 Q line voltage Cavity light March 2002 9 16021599 Component Testing Procedures 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 Three Magnetron Models H V System 1 H V System 2 H V System 3 Top Rear Magnetron Top Front Magnetron Bottom Magnetron Center Transformer Left Transformer Right Transformer Bottom Center Capacitor Top Left Capacitor Right Capacitor Diode Diode Diode Center Triac Left Triac Right Triac 16021599 10 March 2002 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 Power Test Traditional Test Method Test equipment required Amana power test kit R0157397 Fahrenheit Menumaster power test kit M95D5 Celsius 1 Fill the plastic container to the 1000 ml line with cool tap water 2 Using the t
5. RLOCK SWITCH MONITOR METERS 8 7 CURREN Ei SENSE E2 le LA LI 07 3 54 4 44 5 HV BOARD Bu eo 7 2 230 208 ES ee Re ek AAA J A AAT CS 6508 4 BTM XFMR BTM MAG FUSE TRIAC HV BOARD BOTTOM MAGNETRON SEE HV CIRCUIT i SNUBBER 275 E6 J4 1 oa NC 37 4 230 208 COM 4 f E7 4 2 y P 230V 7 2 TR XFMR k MAG FUSE TRIAC TOP REAR MAGNETRON SEE HV CIRCUIT C J7 6 77 SNUBBER i 2 2 HV BOARD Ka COM 208 230 33 3 208V oe amp AAAAAAAT N E XFMR MAG FUSE TRIAC TOP FRONT MAGNETRON SEE HV CIRCUIT 3 1 E4 SNUBBER XFMR FUSES NOT 35 ON ALL MODELS HV CIRCUIT 3 PLACES S 7 LVN YY 4 5 6 77 CAPACITOR RESISTOR INTERLOCK SWITCH RECTIFIER SCHEMATIC HIGH VOLTAGE bon QLOSED 77 PA 59001019 DN A LEM F 5 9 e 4 77 KP MAGNETRON 7 ne 8 16021599 DANGER HIGH VOLTAGE 16 March 2002 CONDENSED PARTS 3 14 02 LIST WDYRC2 DESCRIPTION P1326305M tubes Re pee 007 ox Femara meme 0007 Diode assembly B8383102 Capacitor top mag 12548814 2 Capacitor bottom mag 12548814 Transformer HV 10788613 Transformer auto C8901509 Blower motor 12138106 Blower wheel C3670809 ad mem een Harness main oven R0130266 Harness PC board R0130265 i Ha
6. Training Manual ADDENDUM WDYRC2 WDYRC2 March 2002 ANTENNA ASSEMBLY WDYRC P1198621M a ARROW DOT Top Antennas 90 offset Nylon washer lt Tipped Top Front Only Bottom _ NO Blue tipped Antenna CONTROLS WDYRC P1198621M L V Board H V Board Extended WDYRC2 P1326305M Display Board H V Board NO Extended Memory Board Commercial Microwave Technical Information 208 230 VAC 60 Hz Models WDYRC2 P1326305M Due to possibility of personal injury or property damage always contact an authorized technician for servicing or repair of this unit e Refer to Service Manual RS2240003 for installation operating testing troubleshooting and disassembly instruction e Refer to Parts Manuals RP2240008 for part number information 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 Uncrated 115 Ibs Crated 123 16 16021599 4 March 2002 Component Testing Procedures 4 WARNING To avoid risk of electrical sho
7. ck personal injury or death disconnect power to oven and discharge capacitor before servicing unless testing requires power D7681501 meen MT2 Triac 1 center Triac 2 left Triac 3 right 59001012 Qty March 2002 Component Test Thermal cutout B5684124 B5795306 Snubber assembly 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 term
8. e 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 Power Output Power Output 1540 11 5 1610 1680 12 5 1750 1820 13 5 1890 15 5 5 2 2310 March 2002 11 16021599 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 procedures 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 transf
9. hermometer 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 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 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 temperatur
10. inals 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 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 16021599 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 Component Test Resuts Auto Transformer 230 C8901509 208 120 0 Transformer Interlock switch Door Closed Discharge Capacitors Remove all wires from terminals Measure resistance from 230 V to 0 V 208 V to 0 V 120 Vto0V 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 measure resistance from Approximately 38 Q Approximately 37 Q
11. ini Connector Connector Pi OX O LL Side d 2 a E 4 Touch y J4 Touch Panel el Panel Connector LOA 1 2 Connector aC Se ES A Test Points B 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 Setting Probe Placement 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 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 vo
12. ltage Test mode 3 on 0 volts Magnetron 3 Bottom at 208 VAC 16021599 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 March 2002 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 12559103Q J8 Pin Dd m Pin 1 A n 6 2 3 T Pin 28 Pin 1 J5 pin 50 J1 Pin 14 J7 gt Pin 15 J2 E4 5 O wise DCOM RS ah o 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
13. m moves freely on door e Verify J1 connector on display board is properly seated Test interlock switch assembly and perform door adjustment if necessary Replace interlock switch assembly 16021599 12 March 2002 Service Test NOTE Unit must be in OFF condition gt 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 Press Hidden Pad MEDEE TARA Hidden a Pad Press Display Component Evaluation 12 0 z Deactivated Indicates 1 Activated Service Mode High Voltage System 1 Displays actual Amperage If no Amperage check for line will vary by model voltage at H V transformer primary winding If no voltage check Sh 7 Interlock switch secondary BU 1 1 e Triac 1 H V board relay K8 if 230 VAC Toggles Magnetron 1 K9 if 208 VAC and triac 1 Rear ON OFF Timer counts up to 62 seconds and unit shuts off wang T1 6 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 2 L Interlock switch secondary nn L Triac 2 Toggles Magnetron 2 H V board relay K4 if 208 VAC Top Front ON OFF K5
14. nel m P Hidden Pad using chart 2 Resistance between selected traces Interlock H V board 4 a 0 ohms Pin 1 Conector Connector n Ej 3 Pressing touch panel a resistance between Side k selected traces is Touch Touch E Panel less than 40 ohms Connector m 3 Wn E Connector V EE ca 4 1 A Ribbon Cable Side Touch Panel R0130111 2 1 Ribbon Ribbon L Switch gt Trace Trace gt ra 1 3 5 MO A A EN LU ca NENNEN ca 54 3 8 Ribbon Cable 5 3 9 test touch panel for S6 4 5 proper operation S7 4 6 1 Identify ribbon traces S8 4 7 for selected touch panel S9 4 8 using chart S10 4 9 2 Resistance between 11 6 9 selected traces 12 5 6 0 ohms Interlock H V board 3 Pressing touch panel Pin1 Connector Connector resistance between db xa Sid ib pi selected traces is Touch a Pin less than 40 ohms Panel ae P Panel Connector S A IUNII Tnm Connector A Test Points B March 2002 7 16021599 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 P
15. ormer 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 Err1 Failed H V Board Replace H V Board Err2 Failed H V Board Replace H V Board Failed Touch Panel See Err5 for test Err3 Failed H V Board Replace H V Board Failed Touch Panel See Err5 for test Err4 Failed H V Board Replace H V Board Err5 Failed 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 J5 3 Reconnect oven to power supply 4 If 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 Verify latch mechanis
16. rness relay Harness switch to We a display board Receptacle lamp B8371401 EUREN CONDENSED PARTS 3 14 02 LIST WDYRC2 DESCRIPTION P1326305M tubes a Antenna assy top front R0130261 Blue tip WP eee error Dem m Von oe Findet mem ese fae ser miam Van mo Our O07 en f essay D Umm Dr ee a CN Wrapper outercase 10908901 m o o Use amp care manual 12392760 J eere
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