ELECTRIC FRYERS - TROUBLESHOOTING
60
TROUBLESHOOTING
COMPUTER CONTROL
HARNESS PIN-OUTS CHART
COMPUTER CONTROL PIN-OUTS
Pin # Description Pin # Description
1 Right power input 13 24 VAC ground
2 Left power input 14 Right basket output
3 Right pilot valve input 15 Right heat output
4 Left pilot valve input 16 Left heat output
5 Right main valve input 17 24 VAC
6 Left main valve input 18 no connection
7 Right high limit 19 Left basket output
8 Left high limit 20 no connection
9 Ignition system type input 21 no connection
10 Air filter input 22 no connection
11 Door input 23 DC power input (+)
12 “Full” or “Split” mode input 24 DC power input (-)
SOLID STATE CONTROL
SYMPTOM POSSIBLE CAUSES
Fryer does not heat. Power light is not on. 1. Power switch off or inoperative.
2. Main circuit breaker tripped.
3. Fuse in control circuit open.
Ventilator off, power switch on, power light on. 1. Ventilator hood circuit breaker open.
2. Interlock wiring open.
3. Power switch malfunction.
No heating light, power switch on, power light on. 1. Temperature control set too low or not calibrated.
2. Heating light inoperative.
3. Control board inoperative.
No heating light. Power switch on, power light on,
trouble light and second high limit on.
1. Shortening temperature above 435 F, first high limit
inoperative.
2. Second high limit inoperative.
Excessive time to melt shortening. (more than 45
minutes).
1. Melt cycle timing incorrect.
2. Heating elements malfunctioning.
3. Supply power incorrect voltage.
Fryer shuts down on first high limit. 1. Low oil.
2. Control not calibrated.
3. Contactor malfunction.
4. Control board inoperative.
Fryer shuts down on second high limit. 1. Low oil.
2. Control board inoperative.
3. High limit malfunction.
Thermostat out of calibration by more than 25 F. 1. Control board inoperative.
2. Probe touching element.
Light(s) not on when required. 1. Light inoperative.
2. Wiring problem.
