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ER SERIES FRYER SERVICE MANUAL SUPPLEMENT - TROUBLESHOOTING
SOLID STATE CONTROL
SYMPTOM
Fryer does not heat.
Ventilator OFF, power switch ON, power light
ON.
No heating light, power light ON.
No heating light, power light ON, trouble light
and first and second high limit lights ON.
Excessive time to melt shortening
(more than 45 minutes).
Fryer shuts down on first high limit and first
high limit light ON.
Fryer shuts down on second high limit, power
light ON, no first high limit light and second
high limit light ON.
Thermostat out of calibration by more than
25 F.
Light(s) not ON when required.
F24696 (May 2001)
TROUBLESHOOTING
1. Power switch OFF or inoperative.
2. Main circuit breaker(s) OFF or the fryers internal circuit
breaker(s), if applicable, OFF.
3. Control circuit fuse 1FU or 2FU OPEN.
4. Transformer 2T inoperative.
5. Drain valve switch malfunction (if installed).
6. Malfunctioning heat control relay R1 (full vat or right side
split vat) or R2 on left side split vat only.
1. Ventilator hood circuit breaker OPEN.
2. Interlock wiring OPEN.
3. Power switch inoperative.
1. Temperature control set too low or not calibrated.
2. Heating light inoperative.
3. Contactor(s) malfunction.
4. Control board malfunction.
1. Low oil.
2. First high limit inoperative (control board).
3. Second high limit OPEN or tilt switch OPEN or tilt switch
malfunction.
4. Contactor(s) malfunction.
5. Control board malfunction.
1. Melt cycle timing incorrect (control board).
2. Heating elements malfunctioning.
3. Supply power incorrect voltage.
1. Low oil.
2. Control not calibrated.
3. Contactor(s) malfunction.
4. Control board malfunction.
1. Low oil.
2. First high limit "light" inoperative.
3. Second high limit OPEN or tilt switch OPEN or tilt switch
malfunction.
4. Contactor(s) malfunction.
5. Control board malfunction.
1. Probe touching element.
2. Probe malfunction.
3. Control board malfunction.
1. Light inoperative.
2. Wiring problem.
Page 50 of 56
POSSIBLE CAUSES
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