Middleby Marshall PS640E installation manual Symptom, Problem, Solution, Iv. Screen Alerts

III. QUICK REFERENCE: TROUBLESHOOTING

SYMPTOM

PROBLEM

SOLUTION

Oven will not

No electrical power

• Check that the circuit breaker/fused disconnect is on.

turn On.

Make sure the emergenct stop button is on.

Oven will not

Faulty contactor

•

Replace contactor.

heat.

Faulty heater element

•

Replace element.

Oven is operating, but

Air fingers may be as-

• Turn oven off, and allow to cool. Reassemble fingers

little or no air is coming

sembled incorrectly after

correctly.

from the fingers.

cleaning.

Conveyor will not move.

Conveyor may be jammed.

• Turn oven off, and allow to cool. Check conveyor for

blockage.

IV. SCREEN ALERTS

SYMPTOM

PROBLEM

SOLUTION

Battery Symbol in the

The internal battery needs

• A qualified service technician should accomplish this.

lower right hand corner

to be replaced to retain en-

ergy mode timings.

High Control Compartment

Clean rear grills.

• Failure to do this will eventually shut down the oven due to

Temperature

excessive temperature.

Control Over Temp

Rear Grills are clogged.

•

Clean grills.

Front belt jammed

Front belt has stopped.

• Remove obstruction, and restart oven.

• If no obstruction, call service.

Rear Belt jammed

Rear belt has stopped.

• Remove obstruction, and restart oven.

• If no obstruction, call service.

High Temp Error

Thermocouple or

•

Call service.

PLC malfunction.

Belt off-Oven not

Normal operation until

in temperature

Oven reaches operating

temperature.

Energy Saving Mode 1

Normal operation.

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