F35660
Rev. A (0717)
Page 52 of 5
6
Symptoms
Possible Causes
No power to cooking control (display not lit),
fryer does not heat.
1.
Power switch off or malfunction.
2.
Main circuit breaker off.
3.
Transformer inoperative.
4.
Interconnecting wiring malfunction.
High limit thermostat shutting off gas burners.
1.
Shortening level below minimum fill line.
2.
Probe malfunction.
3.
Cooking control malfunction.
4.
Interface board malfunction.
5.
High limit thermostat malfunction.
Excessive time to melt shortening (more than
45 minutes).
1.
Melt cycle timing incorrect.
2.
Insufficient gas pressure.
3.
Gas orifice plugged or obstructed.
4.
Probe malfunction.
5.
Cooking control malfunction.
6.
Interface board malfunction.
SOLID STATE CONTROL
The following alarms take precedence over any other controller mode or function.
Alarms
Description
Open Probe
If an open probe is detected, the heat demand (heat on) and basket lift outputs are disabled.
Any cooking in progress is canceled, and all operator buttons are disabled. The display
shows "Prob," and the electronic alarm will sound continuously.
NOTE:
A temperature of less than 40°F is an open probe equivalent.
Shorted Probe
If a shorted probe is detected, the heat demand (heat on) and basket lift outputs are disabled.
Any cooking in progress is canceled, and all operator buttons are disabled. The display
shows "HI," and the electronic alarm will sound continuously.
NOTE:
A temperature of 460°F or greater is a shorted probe equivalent.
Hi Temperature
If the temperature is greater than or equal to 415°F, the heat demand (heat on) is disabled.
Any cooking in progress is canceled, and all operator buttons are disabled. The display
shows "HI," and the electronic alarm will sound continuously. Normal fryer operation
resumes when the temperature drops below the high temperature alarm level.
Ignition Status
If this input is not active (24VAC = active), the display will show "FlrE OUt" (for gas pilot out).
If the input remains inactive for greater than 90 seconds, the display will show "Ign LoC" (for
ignition lockout), the electronic alarm will sound continuously, and the controller will be
disabled (all outputs, including heat demand off) until power is cycled.
GR Series Gas Fryers with NCC Controls (formerly Tridelta / Built after 3/05) - TROUBLESHOOTING