Troubleshooting - Vulcan-Hart GH SERIES Installation & Operation Manual

OVEN
PROBLEM
Too Much Bottom Heat
Uneven Bake
Side Burning
Too Much Top Heat
Uneven Bake - Side to Side
Pulling to Edge of Pan
Uneven Bake - Front to Rear
Dried-Out Products
Pilot Outage
Excessive Meat Shrinkage
TOP BURNER OPERATION
PROBLEM
Improper Burner Combustion
Excessive Valve Handle Temperatures
Sticking Top Burner Valves
Poor Ignition
FORM 35634 (2-05)

TROUBLESHOOTING

PROBABLE CAUSES
Insufficient heat input. (Call for Service)
Overactive flue. (Call for Service)
Too low temperature.
Improper operation.
Improper bypass setting. (Call for Service)
Fluctuating gas pressure. (Call for Service)
Too high temperature.
Faulty ventilation. (Call for Service)
Excessive heat input. (Call for Service)
Thermostat needs calibration. (Call for Service)
Range not level side to side.
Oven burner, bottom or baffles improperly installed.
Warped pans.
Oven not level.
Overactive flue. (Call for Service)
Range not level front to back.
Door not closing properly. (Call for Service)
Too low temperature.
Too long baking time.
Thermostat calibration. (Call for Service)
Gas supply not sufficient. (Call for Service)
Pilot flame too low. (Call for Service)
Restriction in pilot orifice. (Call for Service)
Malfunctioning check valve. (Call for Service)
CONVECTION OVEN MODELS ONLY:
Cavity leaking. (Call for Service)
Gasket problems. (Call for Service)
Snorkel tube blocked.
Blower running backward. (Call for Service)
Roasting temperature too high.
PROBABLE CAUSES
Improper use, allowing improper ventilation.
Poor door fit. (Call for Service)
Oven door left open.
Insufficient gas input. (Call for Service)
Poor air-to-gas adjustment. (Call for Service)
Restriction in pilot orifice. (Call for Service)
Restriction in main burner ignition port. (Call for Service)
Restriction in control valve. (Call for Service)
Restriction in gas orifice. (Call for Service)
– 24 –
PRINTED IN U.S.A.