Open Fc3&/F1 Fuse - Hayward H150FDN Troubleshooting Manual

Open FC3
&/or F1 Fuse
YES
Replace gas
valve:
(pg. 20)
YES
Replace wiring
harness:
FDXLWHA1930
29
3. Open FC3 &/or F1 Fuse
Check the remote
connection/high
limits
Test gas valve
wires for
continuity against
ground
Are any wires
showing
continuity?
NO
Inspect ICB
wiring, any wires
compromised?
NO
Replace ICB:
FDXLICB1930
YES
Is low voltage
wiring damaged,
pinched, or worn?
NO
Is water pressure
YES
switch wiring
damaged, pinched,
or worn?
NO
Is blower vacuum
YES
switch wiring
damaged, pinched,
or worn?
NO
Is gas valve wiring
YES
damaged, pinched,
or worn?
NO
Replace wire harness:
FDXLWHA1930
OR high limit if damaged:
FDXLHLI1930
Replace wire harness:
FDXLWHA1930
OR pressure switch if
damaged:
FDXLWPS1930
Replace wire harness:
FDXLWHA1930
OR vacuum switch if
damaged:
FDXLBVS1930
Replace wire harness:
FDXLWHA1930
OR Replace gas valve:
Please refer to (pg. 20)