Verify 22-28VAC off gas valve during ignition trial.
IF present & no pressure (manometer attached),
replace valve. Otherwise, replace ICB (
pg. 20
).
Verify correct flame sensor
Verify that the installed flame sensor is 5”. IF 3” is
installed OR IF sensor is damaged, replace it with
the 5” version (
pg. 20
). IF correct, go to step 12G.
Voltage/pressure off gas valve
Step 12E
Check for damaged/wrong blower air inlet plate. IF
wrong or damaged contact tech support (908) 355-
7995. IF OK, go to step 12H.
Verify blower air inlet plate
Step 12G
55
Inspect Gas Orifices & Burners for blockage. Clean
as required. IF damaged, replace (
pg. 20
). IF NOT
damaged, contact tech support (908) 355-7995.
Inspect orifices & burner tubes
Step 12H
Step 12F
12. Service LED ON: “IF” Code (cont.)
Содержание H150FDN
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