Fulton Edge ICX or FB-F Vertical Tubeless Boilers (Steam), Gas Fired - Manual (Page 72)

63-G 1/01
Maintenance
Problem Cause Remedy
Pump runs but does 1. Vapor locking of pump. Allow system to cool down, check steam traps
not put water into boiler and check to be sure return lines are not insulated. Check
return tank temp. If it is above 180 deg. F, (82 deg. C)
vapor locking of pump will occur. Inspect check valves.
Clean and replace as needed. Replace pump with
multistage centrifugal good for 250 degrees F (121 deg.C).
2. Impeller Adjustment Check for impeller wear and adjust per component
information in instruction manual (Burks only).
3. Back pressure on pump Need to install repair kit on pump.
4. Plugged feed water Check and clean or replace as necessary.
nipple
Water pump will not 1. Scale on probes. Check and clean or replace as necessary.
come on at times.
2. Bad Pump Contactor Check to see if contactor is being powered.
Check to see if contactor coil is pulling in. Replace if
necessary.
3. Bad Pump Motor Check the incoming power to the pump to be
sure it is receiving power. If power is present but motor
does not run, replace it.
Low Fuel pressure 1. Gas pressure regulator Check and replace.
Boiler Flooding 1. Pump does not Dirty Probes. Clean or replace as necessary.
shut off
2. Relay failed Make sure relay is plugged in tightly. If so,
replace water level relay.
3. Ground Connection Check for tightness and clean.
4. Vacuum created with As the boiler cools off, it pulls water from the system
boiler off. piping. To prevent this, add a 1/4" check valve on the
steam gauge assembly piping, which closes under
pressure and opens under vacuum.