Fulton Classic ICX or FB-F Vertical Tubeless Boilers (Hot Water), Gas_Oil Fired - Manual (Page 43)

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SECTION 4
ICW-IOM-2014-0410
MAINTENANCE
4-13
Troubleshooting Oil Fired Boilers
Problem Cause Remedy
Burner Cut Off / Ignition
Failure/ Flame Failure
Power Supply
Check fuse or circuit breaker and replace as
necessary.
Transformer
Check voltage between transformer leads at
terminal block to be sure the terminal is being
powered.
Cad Cell
Check for ignition interference. To verify cad cell is
working, place a lit candle in front of photo cell at
the proper time.
Protectorelay
Check voltage between pilot terminal and
ignition terminal. Check must be made before
control locks out for safety. If zero voltage, clean
the relay contacts and recheck terminals for
power. If no power, replace control.
Oil Supply
Check oil level in supply tank to be sure it is not
below intake line. Fill tank with oil. Check for
clogged nozzle. Clean or replace.
Ignition Electrodes
Check electrodes for carbon buildup and clean as
necessary. Check for proper adjustment; readjust
if necessary. Check for cracks in porcelain; replace
if cracked.
Primary air adjustment
Check air adjustment. Air may be blowing fi re
away from fl ame sensor.
Oil Valve
Check voltage between oil valve leads at terminal
block to be sure oil valve is getting power.
Oil Pump
Check for clogged strainer or fi lter. Remove and
clean. Check for slipping or broken coupling.
Tighten or replace. Check for frozen pump shaft.
Replace.
Aquastat
If power is on, check across aquastats to verify
power through the switch. If bad, replace.
Loss of oil prime
Check all lines for possible air leak in intake line
and tighten. Check for possible restricted intake
line. Replace.
Oil Nozzle Check for clogged nozzle; clean or replace