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Maintenance
23
Troubleshooting Guide
POSSIBLE CAUSE(S) SUGGESTED REMEDY
SYMPTOM: Blower motor(s) not running
S
Computer Control turned OFF
S
Emergency stop switch on OFF
S
No power to oven
S
Motor c ircuit breaker open
S
Control Circuit b reaker open
S
Motor(s) burned out
S
Press ON/OFF key
S
Pull switch ou t to ON
S
Reset breaker
S
*
S
*
S
*
SYMPTOM: Computer controller displays: Probe-Open-Probe -Short and alarm buzzer sounds
S
Shorted or open RTD probe
S
Computer controller not properly installed
S
Internal problem with computer Controller
S
Loose connections at the computer Controller
S
Press Clear key to silence buzzer
S
Reinstall
S
*
S
*
SYMPTOM: Burner w ill not fire
S
Computer control turned OFF
S
Emergency stop switch on OFF
S
Blow er motor(s) not running
S
Computer temperature not set above ambient
temperature
S
Manual gas v alve closed
S
High limit control tripped
S
Defective Computer Controller
S
Control circuit breaker tripped
S
Air pressure switch out of adjustment
S
Thermal sw itch in control compartment t ripped
S
Press ON/OFF key
S
Pull switch ou t to ON
S
*
S
Set to desired temperature
S
Open valve
S
*
S
*
S
*
S
*
S
Excessive intake air temperature --- check hood
system
*Denotes remedy is a difficult operation and should be performed by qualified person nel 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 disco nnect the power supply before cleaning or servicing the oven.