Middleby Marshall 60254 Manual Do Utilizador
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 fingers correctly.
Oven is operating, but little
or no air is coming from
the fingers.
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 filters.
•
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 qualified service technician.
Main Blower problem
or Combustion Blower
problem.
SCREEN ALERTS
Control Over Temp
Front filters are clogged
•
Clean or replace filters.
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