FULTON VSRT Series Installation, Operation And Maintenance Manual page 101

SECTION 4
VSRT-IOM-2022-0728
Problem Cause
Vapor locking of pump
Pump runs but
does not put
water into boiler
Impeller Adjustment
Back pressure on pump
Plugged feed water nipple
Blower motor
making noise
Consult Factory.
when returning
boiler to service
Questions? Please Contact Your Local Manufacturer's Representative
MAINTENANCE & TROUBLESHOOTING
Remedy
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).
Check for impeller wear and adjust per component information
in instruction manual (Burks/MTH only).
Install repair kit on pump.
Check and clean or replace as necessary.
Conult Factory.
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