Hayward H250FDP Troubleshoot Manual

Does heater
fire?
“HF” Code
Power cycle the
heater at the
breaker
YES
44
NO
Verify error code &
jump to section that
best describes error
Reduce the
temperature set
point until heater
stop firing
10. Service LED ON: “HF” Code
Did the “HF”
code reappear?
YES
NO
Did the “HF”
code reappear?
YES
NO
Problem
solved
Toggle the
mode button
and call for heat
Test for 24VAC
off the gas valve
Is 24VAC
present?
Do you have
manifold gas
pressure?
YES
NO
Replace ICB:
FDXLICB1930
YES
NO
Replace gas valve:
Please refer to (pg. 20)

Hayward H250FDP Specifications

General

Brand	Hayward
Model	H250FDP
Category	Heater
Language	English