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L80-029 Rev 5 10/07 12
PROBLEM
A. Main breaker in OFF position. A. Turn on Circuit Breaker to appliance.
B.
Gas supply turned OFF.
B.
Turn on gas supply to appliance.
C.
Appliance unplugged.
C.
Plug appliance power cord into wall outlet.
D.
Blown control fuse.
D.
E.
Faulty transformer.
E.
F. Defective controller. F.
A.
Tripped hi limit
A.
Depress red button and reset hi limit.
B.
Controller is not turned on
B.
Turn controller on.
C.
C.
D.
Faulty temperature probe
D.
E. Defective controller. E.
A.
A.
B.
B.
C.
Faulty SCBS Board
C.
Replace SCBS Board.
D.
Faulty SCBS Valve
D.
Replace SCBS Valve.
E.
Clogged SCBS Orifice
E.
Clean debris from SCBS orifice opening.
F.
F.
A. Faulty SCBS Board A. Replace SCBS Board.
B. Faulty SCBS Valve B. Replace SCBS Valve.
A. Pilot tubing is loose. A. Ensure pilot tubing is tight and properly connected.
B.
Pilot is mounted improperly.
B.
Ensure that pilot is mounted properly.
C.
Flame sensor is misaligned.
C.
Ensure that the flame sensor is properly aligned.
D.
Low Pilot
D.
Ensure that pilot is adjusted to provide adequate flame.
E
Clogged Pilot orifice
E
Ensure that pilot orifice is clear of debris.
F.
Damaged or defective Pilot.
F.
Replace pilot if necessary.
A.
Blockage in burner tubes.
A.
Ensure that burner tubes are free of obstructions.
B.
Flue is blocked
B.
Ensure that flue is free of obstructions.
G.
B. B
A. A.
D. D.
C. C.
Appliance will not
run, control flashes
ignition failure
Check ventilation hood for improper operation, down draft
or blockage.
Ventilation hood malfunction
Thermal Limit
Switch trips after
short period of
operation.
Refer to flue baffle adjustment procedure in these
instructions to set flue baffle to a less restrictive setting.
Model MG2 or MG2T flue baffle
is set too restrictively.
Faulty hi limit switch
Appliance will not
maintain
temperature
properly.
Refer to Service and Parts manual to diagnose this problem
and replace temperature probe.
Refer to Service and Parts manual to diagnose this problem
and replace hi limit switch.
Appliance is ON, but
a Cleaning Cycle
does not execute
SCBS energizes
beyond normal cycle
parameters (during
cooking, idling, etc.)
Check that the SCBS Lighter arm has been properly
installed. Replace if faulty.
Poorly aligned or faulty SCBS
Lighter arm.
Appliance will not
run, front panel
lights are not ON.
Refer to Service and Parts manual for your appliance to
properly diagnose and correct these problems.
Depress button on thermal limit switch and reset.
Appliance will not
run, front panel
lights are ON.
Refer to Service and Parts manual to diagnose and correct
these problems.
SCBS thermal limit switch has
tripped
POSSIBLE CAUSES CORRECTIVE ACTION
Faulty temperature probe
Verify that all wires and harnesses are plugged in properly
to the correct component.
Unplugged wire harness.
Verify that the wiring steps in this instruction have been
followed correctly. Correct any faulty wiring.
Improper wiring.
SCBS Thermal Limit switch has
tripped.
Reset Thermal Limit switch. On models MG2 and MG2T,
verify that flue baffles.are properly adjusted per these
instructions. Check ventilation hood for improper
operation, down draft or blockage.
G.
TROUBLESHOOTING
Should there be a problem with your appliance, use the following tables to isolate possible faults before calling Pitco
Technical Support.