Technical information

Disassembly Procedures
To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge the
capacitors before following any disassembly procedures.
Interlock Switch
NC
COM
NO
COM
COM
NO
Monitor
Switch
Primary
Switch
Secondary
Switch
Tab
Tab
NOTE: After repairing the door or the interlock system, it is necessary to check the switch continuity before
operating the oven.
Adjusting Interlocks
The interlock monitor, primary, and secondary switches act as a final safety switch, protecting the operator from
microwave energy. After adjusting the interlock switch assembly, verify wires are correctly connected.
For door fit and switch operation, switch bracket is adjustable.
1. Disconnect power to oven and remove outer case, (see "Outer Case" procedure).
2. Loosen switch bracket mounting screws.
3. Close oven door, move switch bracket toward rear of oven until door gap is less than
1
/64–inch (0.5 mm).
4. Hold switch bracket securely for proper switch operation and door fit, retighten screws.
5. Open oven door slowly, watching the switches. Verify switches release in the following order.
• Primary interlock switch
• Secondary interlock switch
• Interlock monitor switch
NOTE: Adjust the switch bracket until all switches operate in proper sequence.
6. Close the oven door slowly, watching the switches. Verify switches activate in the following order.
• Interlock monitor switch
• Secondary interlock switch
• Primary interlock switch
7. When proper switch sequence has been achieved, tighten the switch bracket securely.
A microwave leakage test must be performed anytime a door assembly is removed, replaced, disassembled,
or adjustment of switch bracket is performed.