Middleby Cooking Systems Group PS770 installation manual III. Quick Reference Troubleshooting

Page 17

III. QUICK REFERENCE: TROUBLESHOOTING

SYMPTOM

 

PROBLEM

 

SOLUTION

 

 

 

 

 

Oven will not

No electrical power

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

turn On.

 

 

 

sure the emergenct stop button is on.

Oven will not

 

No gas pressure

 

• Make sure main gas is on.

heat.

 

 

 

 

 

 

Burner did not light

 

• Turn oven off, and restart. If it still does not light, call for

 

 

 

 

service.

Oven is operating, but little

Air fingers may be as-

or no air is coming from

sembled incorrectly after

the fingers.

cleaning.

Conveyor will not move.

Oven is not up to operating

 

temperature.

 

Conveyor may be jammed.

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

Allow oven to preheat.

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

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

 

 

 

energy mode timings.

 

 

High Control Compartment

 

Clean and replace the

 

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

Temperature

 

front fan filters.

 

excessive temperature.

Main Blower problem

 

The computer has

 

• This should be corrected by a qualified service technician.

or Combustion Blower

 

detected a problem with

 

 

problem.

 

either the main, or burner

 

 

 

 

blowers.

 

 

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Contents Owners Operating and Installation Manual Page Page Middleby Marshall Table of Contents Page Page Page Item QTY Description Page Standoff Installation Switching Photo Detector Resetting Direction JumperAttaching the Point of Sale Cable Conveyor Belt ReversalConnection 14 Gas Burner/Blower Motor and Piping Assembly Operation II. Normal Operation STEP-BY-STEP Symptom Problem Solution III. Quick Reference TroubleshootingPage Page Page Blower Belts IV. Maintenance Every 6 MonthsItem QTY Description Schematics