3
Power Supply
Gas Supply
Refractories
Ignition Electrode
Pri Air Adjustment
Sec Air Adjustment
Transformer
Low Water Probes
U/V Cell
Low Water Safety Relay
Water Level Relay
Pressure Control
Draught
Steam Overload
Feedwater Pump
Burner Programmer
Burner Motor
Contam. Feedwater
Feedwater Too Hot
Dirty Flues
Air Switch
Burner will
Flame
not start
Failure
FIG. 15 FAULT FINDING
GFSE-Std-0499
Low Water
Poor
Alarm
Combustion Maintain Pressure
3
Boiler will not
26