Market Forge Industries MPS-3E, Руководство пользователя

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6.0 TROUBLE-SHOOTING (Continued)
ELECTRICAL FAULT ISOLATION GUIDE
FAILURE FAULT LOCATION
1. Will not operate in either HOLD or 60-MINUTE
TIMER positions.
a. Incoming power.
b. Timer.
c. Door interlock switch.
d. Wiriing.
2. Operating in HOLD position but not in 60-MINUTE
TIMER position.
a. 60-Minute timer.
b. Wiring.
3. Operates in 60-MINUTE TIMER position but not in
HOLD position.
a. Timer.
b. Wiring.
c. Hold thermostat.
4. With COOK indicator light on and steam entering
the cavity, timer dial fails to turn.
a. Hold position set on timer.
b. Timer motor.
c. Wiring.
5. Buzzer fails to sound at end of 60-MINUTE TIMER
mode.
a. 60-Minute timer contacts.
b. Buzzer.
c. Wiring.
6. Steam flows continuously from boiler drain line. a. Cooling valve needs replacing.
b. Wiring.
Timer Motor
A defective timer motor will cause continuous operation in the TIME mode, with the timer dial
failing to return to the “0 - Minute” position.
To confirm timer motor condition, proceed as follows:
1. Carefully check motor wire leads and tighten loose connections.
2. Turn on power to the steamer.
3.
Set timer dial (any setting beyond “0 - Minute”). If operation is correct, the motor will turn
the dial toward “0 - Minute”. If the motor fails to operate, it is defective and the entire
timer must be replaced.
4. Shut off power to the cooker.