Vulcan-Hart GR25, Руководство по обслуживанию

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GR SERIES GAS FRYERS - TROUBLESHOOTING
F25125 (March 2003) Page 22 of 24
TROUBLESHOOTING
ALL MODELS
SYMPTOMS POSSIBLE CAUSES
Pilot burner will not light. 1. Gas supply off.
2. High limit thermostat open or malfunction.
3. Incorrect gas type.
4. Pilot burner flame adjustment too low.
5. Pilot burner orifice obstructed or incorrect .
6. Gas combination valve malfunction.
Pilot burner lights but will not maintain flame. 1. Pilot burner flame adjustment too low.
2. Pilot burner orifice obstructed or incorrect.
3. Thermopile malfunction.
4. Insufficient gas pressure.
5. High limit thermostat malfunction.
6. Gas combination valve malfunction.
Pilot burner adjusted properly but flame
fluctuates or goes out. 1. Insufficient gas pressure due to other equipment
operating on same line.
2. Excessive drafts.
A. Vent hood not adjusted properly.
B. Fryer door open or removed.
Main burner(s) light but will not maintain
flame. 1. Insufficient gas pressure.
2. Main burner(s) gas orifice obstructed or incorrect.
3. Thermopile malfunction
4. Main burner(s) malfunction.
5. Gas combination valve malfunction.
Fryer does not heat, pilot burner lit. 1. Control thermostat off or malfunctioning.
2. Gas combination valve malfunction.
3. Wiring connections loose or wiring malfunction.
Excessive or low heat. 1. Control thermostat calibration or malfunction.
2. Gas pressure incorrect.
3. Main burner(s) gas orifice
obstructed or incorrect.
4. Flue obstructed.
5. Vent hood not adjusted properly.
6. Fryer load capacity exceeded.
High limit thermostat shutting off main
burners. 1. Shortening level below minimum fill line.
2. Control thermostat malfunction.
3. High limit thermostat malfunction.
Main burners light when control thermostat is
turned off. 1. Control thermostat malfunction.
2. Control thermostat terminals shorted or lead wire
grounded.
3. Gas combination valve malfunction.