Vulcan-Hart SG4 Gas Heater User Manual


 
SYMPTOMS POSSIBLE CAUSES
Excessive or low heat.
1. Temperature probe malfunction.
2. Temperature control board malfunction.
3. Gas pressure Insufficient.
4. Gas orifice plugged or obstructed.
Mechanical Timer inoperative or not functioning properly.
1. Interconnecting wiring malfunction.
2. Line voltage incorrect.
3. Timer malfunction.
Component cooling Fan does not run.
1. Motor inoperable.
2. Interconnecting wiring malfunction.
Uneven Cooking.
1. Convection Fan motor speed/direction.
2. Poor combustion.
A. Gas pressure incorrect.
B. Exhaust vent plugged or obstructed.
C. Snorkel Vent plugged or obstructed.
3. Air flow Baffles missing or damaged.
Intermittent problems.
1. High ambient temperatures.
2. Wiring connections loose.
3. Cooling fan malfunction.
No power to temperature control.
1. Power switch (S1) in “Cool Down”.
2. Door or door switch open.
SG SERIES GAS CONVECTION OVENS - TROUBLESHOOTING
Page 33 of 33 F45525 Rev. A (0315)