Fulton Edge ICX or FB-F Vertical Tubeless Boilers (Steam), Gas Fired - Manual (Page 25)

19-G 1/01
Problem Cause Remedy
Flame Failure 5. Scanner Check for dirt on flame scanner and clean. Check for
proper location of detector.
6. Flame Safeguard Control Check voltage at terminal leading to main gas valve.
If no power, replace the control.
7. Loose wire at fuel Tighten wiring connections.
valve circuit
8. Contact open on air Adjust to proper setting.
safety switch
9. Scanner wiring reversed Change to correct terminals.
at panel box
Burner Cut-Off 1. Power Supply Check fuse or circuit; reset or replace, as necessary.
2. Gas Supply Check to be sure main gas cock is not closed. Check coil
in gas valve with OHM meter. Replace if faulty. Check gas
regulator setting and readjust as necessary. Check inlet
gas pressure and increase or decrease as necessary.
3. Ignition Electrodes Check electrodes for carbon buildup and clean if
necessary.Check for proper adjustment. Readjust if
necessary. Check for cracks in porcelain; if found, replace.
4. Scanner Check for dirt on flame scanner and clean.
Check for proper location of detector.
5. Air Switch Check for bad air switch by jumpering the two air switch
leads as the terminal block. If the boiler starts and runs
with these terminals jumpered, the air switch should be
replaced.
6. Gas Valve Sticking Check for dirt in valve or orifice and clean if necessary.
(Pilot) Check for faulty actuator or valve and replace if necessary.
7. Weak Amplifier Replace.
8. Weak Pilot Adjust to larger pilot by adjusting pilot gas pressure
regulator.
9. Faulty Liquid Level Control Check to see if there is power to terminal number 10
when the sight glass shows the proper water level.
If there is no power at this terminal, the control is bad and
must be replaced.
10. Dirty or defective Clean or replace.
UV Scanner
LE Maintenance