Fulton Classic ICX or FB-F Vertical Tubeless Boilers (Hot Water), Gas_Oil Fired - Manual (Page 42)

© The Fulton Companies 2014
MAINTENANCE
ICW-IOM-2014-0410
SECTION 4
4-12
Troubleshooting Gas Fired Boilers
Problem Potential Cause Potential Remedy
Boiler will not maintain
temperature
Gas Supply
Check gas pressure coming into gas train. If low,
maintain pressure contact gas company. Should
be 7 in to 11 in wc /natural gas. Check coil in gas
valve with AMP meter. Replace if bad. Check gas
regulator setting and readjust as necessary.
Dirty Flue
Check fl ue for carbon buildup or blockage. Clean
fl ue passages with brush.
Aquastat
If power is on, check across aquastats to verify
power through the switch. If bad, replace.
Scale Built up in boiler
Refer to Recommended Daily Maintenance
section of this manual.
Refractories
Check refractories to see if they are cracked or
broken in pieces. Replace as necessary.
Boiler Size Boiler may be undersized.