©2018 ACP, Inc.
Cedar Rapids, IA 52404 Page 51 of 80
Part No. 16400033
Original Instructions
Triacs
Triacs
A Triac is an electronic switching device similar to a Relay. Depending on the model, there will be up to four (4) Triacs,
one (1) for the Cooling Fans, one (1) for the Heater, and one (1) for each Magnetron circuit.
Testing
With oven disconnected from the Power Supply, disconnect the Wires from the device. Check resistance between
Terminals and each Terminal to Ground:
MT1 to Gate À50Ω
MT1 to MT2 = Open
MT2 to Gate = Open
All Terminals to Ground = Open
Removal and Replacement
1. Disconnect oven from Power Supply.
2. Remove Top, Right, Left and Rear Panels.
(see Panel Removal).
⚠
DANGER
All High Voltage Capacitors must be discharged
before performing this procedure.
3. Discharge all HV Capacitors.
4. Remove all Wires from the device.
5. Remove two (2) Screws securing device.
6. To replace, reverse these steps.
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