MAINTENANCE & TROUBLESHOOTING 4
Questions? Call (315) 298-5121, or visit us online at www.fulton.com
4-27
VSRT_IOM_2018-1213
Troubleshooting Gas Fired Boilers
Problem Cause Remedy
Pump runs but
does not put
water into boiler
Vapor locking of pump
Allow system to cool down, check steam traps to make sure
they are operating properly, and check to be sure return
lines are not insulated. Check feedwater tank temperature.
If it is above 180 F (82 C) vapor locking may occur,
depending on pump selection. Inspect check valves. Clean
and replace as needed. Replace pump with multistage
pump good for 250 F (121 C).
Impeller Adjustment
Check for impeller wear and adjust per component
information in instruction manual (Burks/MTH only).
Back pressure on pump Install repair kit on pump.
Plugged feed water nipple Check and clean or replace as necessary.
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