Middleby Marshall 60254 Oven User Manual


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21 P/N60254September28,2012
III. QUICK REFERENCE: TROUBLESHOOTING
SYMPTOM PROBLEM SOLUTION
Noelectricalpower • Checkthatthecircuitbreaker/fuseddisconnectison.Make
suretheemergenctstopbuttonison.
Oven will not
turn On.
Faulty contactor
Faulty heater element
• Replace contactor.
• Replace element.
Oven will not
heat.
Air fingers may be as-
sembled incorrectly after
cleaning.
• Turnovenoff,andallowtocool.Reassemblengerscorrectly.
Oven is operating, but little
or no air is coming from
the ngers.
Conveyormaybejammed. • Turnovenoff,andallowtocool.Checkconveyorforblockage.
Conveyor will not move.
SYMPTOM PROBLEM SOLUTION
Clean and replace the front
fan lters.
• Failuretodothiswilleventuallyshutdowntheovendueto
excessivetemperature.
High Control Compartment
Temperature
The computer has detected
a problem with either the
main, or burner blowers.
• Thisshouldbecorrectedbyaqualiedservicetechnician.
MainBlowerproblem
orCombustionBlower
problem.
SCREEN ALERTS
ControlOverTemp Frontltersareclogged • Cleanorreplacelters.
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
Energysavingmode2 Normaloperation

EnergysavingMode3 Normaloperation
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