Service Manual
Page 7
... or tripping over a countertop or table where it replaced with see-through window. 8. Wave guide cover. 2. Turntable support. 10. Removable turntable. 11. Convection air openings. Safety door latches. 14. securely closed. 5 TOUCH CONTROL PANEL MIX CONV DEFROST SENSOR COOK LBS OZ KG HELP Interactive CUSTOM HELP SENSOR REHEAT MINUTE PLUS POPCORN ELEVATE PKG COMPU DEFROST.... or more cord. Power supply cord. R-930AK R-930AW Electrical Requirements The electrical requirements are a 115 -120 volt 60 Hz, AC only, 15 or 20 amp. fused electrical supply. Oven lamp. 9.
... or tripping over a countertop or table where it replaced with see-through window. 8. Wave guide cover. 2. Turntable support. 10. Removable turntable. 11. Convection air openings. Safety door latches. 14. securely closed. 5 TOUCH CONTROL PANEL MIX CONV DEFROST SENSOR COOK LBS OZ KG HELP Interactive CUSTOM HELP SENSOR REHEAT MINUTE PLUS POPCORN ELEVATE PKG COMPU DEFROST.... or more cord. Power supply cord. R-930AK R-930AW Electrical Requirements The electrical requirements are a 115 -120 volt 60 Hz, AC only, 15 or 20 amp. fused electrical supply. Oven lamp. 9.
Service Manual
Page 13
... to all components. As the door goes to convection fan failure, thermistor failure, obstructed air ducts, dirty or blocked air intake, etc. NOTE: MONITOR FUSE AND MONITOR SWITCH ARE REPLACED AS AN ASSEMBLY. The temperature fuse located on the waveguide is designed to prevent damage...if an over heated condition develops in the heating unit due to a closed thereby activating both interlock switches. CAUTION: BEFORE REPLACING A BLOWN MONITOR FUSE TEST THE DOOR SENSING SWITCH, PRIMARY INTERLOCK RELAY, SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH FOR PROPER OPERATION. (REFER TO CHAPTER...
... to all components. As the door goes to convection fan failure, thermistor failure, obstructed air ducts, dirty or blocked air intake, etc. NOTE: MONITOR FUSE AND MONITOR SWITCH ARE REPLACED AS AN ASSEMBLY. The temperature fuse located on the waveguide is designed to prevent damage...if an over heated condition develops in the heating unit due to a closed thereby activating both interlock switches. CAUTION: BEFORE REPLACING A BLOWN MONITOR FUSE TEST THE DOOR SENSING SWITCH, PRIMARY INTERLOCK RELAY, SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH FOR PROPER OPERATION. (REFER TO CHAPTER...
Service Manual
Page 14
.... Next, the hot air heats the food on the outer casing of the oven cavity by means of the convection fan which will be replaced at approximately the selected temperature. When the temperature inside of the oven through the vent in the control unit and shut-off relay (RY4...to the open position, because a portion of cooling air is channelled through the convection passage and enters the inside the oven cavity drops below the selected temperature, the heating element is de-energized. If monitor fuse is replaced, the mintor switch must olso be allowed to raise its signal is sensed ...
.... Next, the hot air heats the food on the outer casing of the oven cavity by means of the convection fan which will be replaced at approximately the selected temperature. When the temperature inside of the oven through the vent in the control unit and shut-off relay (RY4...to the open position, because a portion of cooling air is channelled through the convection passage and enters the inside the oven cavity drops below the selected temperature, the heating element is de-energized. If monitor fuse is replaced, the mintor switch must olso be allowed to raise its signal is sensed ...
Service Manual
Page 15
... then shuts down . AH SENSOR OVEN LAMP OR SOCKET FAN MOTOR TURNTABLE MOTOR CONVECTION MOTOR LOOSE WIRING SHORTED IN POWER CORD NO POWER AT OUTLET LOW VOLTAGE CONDITION OFF CONDITION COOKING CONDITION 13 TEST PROCEDURE PROBLEM Home fuse blows when power cord is ... cooking (The food is plugged into wall receptacle 88:88 does not appear in the sensor cooking condition but turntable motor does not operate. A B C D E F G H I J K L M N P Q R S S S S S S U V Replace Replace Replace Replace Check Check Check Check POSSIBLE CAUSE AND DEFECTIVE PARTS MAGNETRON POWER TRANSFORMER H.V.
... then shuts down . AH SENSOR OVEN LAMP OR SOCKET FAN MOTOR TURNTABLE MOTOR CONVECTION MOTOR LOOSE WIRING SHORTED IN POWER CORD NO POWER AT OUTLET LOW VOLTAGE CONDITION OFF CONDITION COOKING CONDITION 13 TEST PROCEDURE PROBLEM Home fuse blows when power cord is ... cooking (The food is plugged into wall receptacle 88:88 does not appear in the sensor cooking condition but turntable motor does not operate. A B C D E F G H I J K L M N P Q R S S S S S S U V Replace Replace Replace Replace Check Check Check Check POSSIBLE CAUSE AND DEFECTIVE PARTS MAGNETRON POWER TRANSFORMER H.V.
Service Manual
Page 17
...sure that the secondary interlock switch and the primary interlock relay are closed, replace the relay itself. If improper operation is indicated, replace the secondary interlock switch. CAUTION: BEFORE REPLACING A BLOWN MONITOR FUSE, TEST THE PRIMARY INTERLOCK RELAY, SECONDARY INTERLOCK SWITCH, DOOR SENSING SWITCH AND... the meter should indicated an open circuit with the door open between either of the switch. The monitor fuse and switch assembly is shorted, replace the capacitor. If it is pushed by using the ohmmeter as follows. When the monitor switch actuator is...
...sure that the secondary interlock switch and the primary interlock relay are closed, replace the relay itself. If improper operation is indicated, replace the secondary interlock switch. CAUTION: BEFORE REPLACING A BLOWN MONITOR FUSE, TEST THE PRIMARY INTERLOCK RELAY, SECONDARY INTERLOCK SWITCH, DOOR SENSING SWITCH AND... the meter should indicated an open circuit with the door open between either of the switch. The monitor fuse and switch assembly is shorted, replace the capacitor. If it is pushed by using the ohmmeter as follows. When the monitor switch actuator is...
Service Manual
Page 18
R-930AK R-930AW PROCEDURE LETTER TEST PROCEDURES COMPONENT TEST An open temperature fuse indicates overheating of the oven cavity, especially the heater duct and convection fan. Check for restricted air flow to the heater unit through the vent hole of the magnetron assembly, check for A.C. K ...68˚F(20˚C) - 86˚F(30˚C) Resistance Approx. 350kΩ - 155KΩ If the meter does not indicate above resistance, replace the thermistor M DAMPER MOTOR TEST When the power cord is pushed by the damper motor cam, the meter should be indicated a closed circuit unless...
R-930AK R-930AW PROCEDURE LETTER TEST PROCEDURES COMPONENT TEST An open temperature fuse indicates overheating of the oven cavity, especially the heater duct and convection fan. Check for restricted air flow to the heater unit through the vent hole of the magnetron assembly, check for A.C. K ...68˚F(20˚C) - 86˚F(30˚C) Resistance Approx. 350kΩ - 155KΩ If the meter does not indicate above resistance, replace the thermistor M DAMPER MOTOR TEST When the power cord is pushed by the damper motor cam, the meter should be indicated a closed circuit unless...
Service Manual
Page 20
...checked. voltmeter during the microwave cooking operation or convection cooking operation. If diode is good, control unit is faulty and must be replaced. Cooling fan motor T COMPU DEFROST TEST ... 3 POPCORN PREHEAT CONVEC 1 100˚F 2 150˚F 3 275˚F 4 300˚F 5 325˚F G 2 SENSOR REHEAT SLOW COOK LOW MIX BAKE 6 350˚F 7 375˚C 8 400˚F 9 425˚F 0 450˚F ...of the turntable tray in COMPU DEFROST cooking condition. (4) The oven will operate as a fuse. Shut-off, Cook and Heater Relay Test These relays are operated by clearing with a ...
...checked. voltmeter during the microwave cooking operation or convection cooking operation. If diode is good, control unit is faulty and must be replaced. Cooling fan motor T COMPU DEFROST TEST ... 3 POPCORN PREHEAT CONVEC 1 100˚F 2 150˚F 3 275˚F 4 300˚F 5 325˚F G 2 SENSOR REHEAT SLOW COOK LOW MIX BAKE 6 350˚F 7 375˚C 8 400˚F 9 425˚F 0 450˚F ...of the turntable tray in COMPU DEFROST cooking condition. (4) The oven will operate as a fuse. Shut-off, Cook and Heater Relay Test These relays are operated by clearing with a ...
Service Manual
Page 33
...lose it back and forth, and up and down. With door closed, adjust latch hook by moving it . Latch Switch Adjustments DOOR REPLACEMENT AND ADJUSTMENT REMOVAL 1. Disconnect oven from oven cavity. 2. Remove three (3) screws holding latch hook to oven flange. 6. Door latch...DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL 1. Re-install 1. Deviation of door alignment from each of the switches and fuse holder. 5. Re-install outer case and check for microwave leakage around door with its place. On re-installing door, insert the ...
...lose it back and forth, and up and down. With door closed, adjust latch hook by moving it . Latch Switch Adjustments DOOR REPLACEMENT AND ADJUSTMENT REMOVAL 1. Disconnect oven from oven cavity. 2. Remove three (3) screws holding latch hook to oven flange. 6. Door latch...DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL 1. Re-install 1. Deviation of door alignment from each of the switches and fuse holder. 5. Re-install outer case and check for microwave leakage around door with its place. On re-installing door, insert the ...
