Blodgett MT3255G Manuel D'installation page 28

Maintenance
Troubleshooting Guide
POSSIBLE CAUSE(S)
SYMPTOM: Burner will not fire
Control turned OFF
S
Blower motor(s) not running
S
Control not set above ambient temperature
S
Manual gas valve closed
S
Cooling blower not working properly
S
Defective control
S
SYMPTOM: Oven will not reach desired temperature
Gas pressure to oven is too low
S
Heat control switch OFF
S
No power to oven
S
Blower motor(s) not running
S
Shorted thermocouple
S
Temperature hi-limit switch out of adjustment or
S
defective
Internal problem with control
S
Cooling blower not working properly
S
SYMPTOM: Burner operates sporadically
Air pressure switch out of adjustment
S
*Denotes remedy is a difficult operation and should be performed by qualified personnel only. It is recommended, however, that
All repairs and/or adjustments be done by your local Blodgett service agency and not by the owner/operator. Blodgett cannot as-
sume responsibility for damage as a result of servicing done by unqualified personnel.
WARNING!!
Always disconnect the power supply before cleaning or servicing the oven.
SUGGESTED REMEDY
Turn blower switch to ON
S
Blower motor(s) must be running. Check control
S
switch and/or fuses
Set to desired temperature
S
Open valve
S
*
S
*
S
Contact local gas representatives
S
Turn to ON position
S
Replace main fuses
S
Check control switch and/or fuses
S
*
S
*
S
*
S
*
S
*
S
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