14
R-2110JK
R-2110JW
R-2120JK
R-2120JW
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. To discharge high voltage capacitor, wait for 60 seconds.
4. A continuity check across the thermal cut-out terminals should indicate a closed circuit unless the
temperature of the thermal cut-out reaches approximately 293˚F(145˚C).
An open thermal cut-out indicates overheating of the oven, exchange the oven thermal cut-out and
check inside of oven cavity and for improper setting of cooking time or operation of control unit. Check
for restricted air flow through the vent holes of the oven cavity, especially the cooling fan and air guide.
5. Reconnect all leads removed from components during testing.
6. Reinstall the outer case (cabinet).
7. Reconnect the power supply cord after the outer case is installed.
8. Run the oven and check all functions.
CAUTION: IF THE THERMAL CUT-OUT INDICATES AN OPEN CIRCUIT AT ROOM TEMPERATURE,
REPLACE THERMAL CUT-OUT.
C
OVEN THERMAL CUT-OUT TEST
Chart for checking the defective inverter unit
No power at full power output cooking
Magnetron is defective.
Exchange the magnetron.
Exchange the Inverter unit
Brown monitor fuse
The secondary interlock switch, primary interlock
switch and the monitor switch are operating properly.
YES
Exchange the Inverter unit
TEST PROCEDURES
PROCEDURE
LETTER
COMPONENT TEST
NO
Check the switches according to
the switch Test Procedure
YES
NO
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. To discharge high voltage capacitor, wait for 60 seconds.
4. Isolate the switch and connect the ohmmeter to the common (COM.) and normally open (NO) terminal
of the switch. The meter should indicate an open circuit with the door open and a closed circuit with
the door closed. If improper operation is indicated, replace the primary interlock switch or secondary
interlock switch.
5. Reconnect all leads removed from components during testing.
6. Reinstall the outer case (cabinet).
7. Reconnect the power supply cord after the outer case is installed.
8. Run the oven and check all functions.
D
PRIMARY INTERLOCK SWITCH AND SECONDARY INTERLOCK SWITCH TEST
STOP SWITCH
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. To discharge high voltage capacitor, wait for 60 seconds.
E
STOP SWITCH TEST
