Fulton Edge ICX or FB-F Vertical Tubeless Boilers (Steam), Gas Fired - Manual (Page 26)

20-G 1/01
Problem Cause Remedy
Poor Combustion 1. Refractories Check refractories to see if they are plugged with soot or
broken in pieces. Clean or replace as necessary.
2. Air Adjustment Check main air adjustment to see if it is loosened up.
Adjust as necessary and tighten plate in position. Check
CO
2
and O
2
levels.
3. Draft Check draft with a gauge. Draft should be a -.02” to -.04”
W.C. with burner off or -.04” to -.06” when operating. May
need to install a barometric damper.
4. Dirty Flue Check flue for carbon buildup or blockage. Clean flue
passages with brush.
5. Negative Room Pressure Make sure no exhaust fans are running in the boiler room.
Burner back fires 1. Refractories Check refractories to see if they are plugged with soot or
broken in pieces. Replace as necessary.
2. 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.
3. UV Scanner Check for dirt on flame scanner and clean.
Check for proper location of detector.
4. Draft Check draft with a gauge. Draft should be a -.02” to -.04”
W.C. with burner off or -.04” to -.06” when operating. May
need to install a barometric damper.
5. Negative Room Pressure Make sure no exhaust fans are running in the boiler room.
Boiler will not 1. Gas Supply Check gas pressure coming into gas train. If low, contact
maintain pressure gas company. Should be 7” to 11” W.C. Check coil in
gas valve with AMP meter. Replace if bad. Check gas
regulator setting and readjust as necessary.
2. Dirty Flue Check flue for carbon buildup or blockage. Clean flue
passages with brush.
3. Pressuretrol Disconnect all power to the controller. Disconnect the wires
from the controller. Put an OHM meter between the switch
terminals. Lower the set point and recheck with OHM meter.
Switch should break. If the controller operates improperly,
replace it.
4. Scale Built up in boiler Refer to Section 2 “Pressure Vessel Cleaning”.
5. Refractories Check refractories to see if they are cracked or broken
in pieces. Replace as necessary.
6. Steam traps Check traps to see if they are clean or replace as necessary.
blowing through
7. Boiler size Boiler may be undersized.
LE Maintenance