Using a small screwdriver, release the tab and remove the door interlock switch from the door switch bracket. Disconnect the electrical connector.
Interlocks (Door Latch Switches)
Interlocks are designed as follows:
Primary Interlock System Test
WARNING: Disconnect the oven from the power supply.
Door Sensing Switch
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.
Power Relay
Disconnect 2 wires from the tab terminals on the circuit board provided in the control panel assembly. The tab terminals are located in the area of the circuit board on the component side, and are connected to the contacts of the power relay. Check the state of the relay contacts using an ohmmeter. The relay contacts should be open. If the relay contacts are closed, replace the circuit board.
Primary Interlock Switch Test
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.
Note: The primary interlock switches are not adjustable and must be replaced if test is failed.
Door Sensing Switch (top)
Monitor Interlock Switch (middle)
Primary Interlock Switch (bottom)
Door Sensing Switch:
•Door Closed - 0 ohms
•Door Open - Infinite ohms
Monitor Interlock Switch:
•Door Closed - Infinite ohms
•Door Open - 0 ohms
Primary Interlock Switch:
•Door Closed - 0 ohms
•Door Open - Infinite ohms
Note: Remove the wires from the switches before checking continuity.
– 17 –