jimh92801
Dec 15, 2009, 10:43 AM
HEIL model (GNJ 075M16A1) stat calls for heat, draft motor comes on, about 10 to 15sec ingintor glows, (Honeywell Q3400A) OHMS out cold 7.9 hot 12.3 decreases as cools down, gas valve does not produce pilot (still OEM product), all safties are OK, pressure switch seems to be fine (tested jumpered out) still nothing . Ingintor continues to glow waited 10 to 15 minutes still on. (did the old trick tapped lightly on gas valve no resalts. Unit belongs to a friend he says sometimes it works and sometimes not. I'm an old licensed retired 40 years service tech from vegas just helping out a friend. Circuit board has no indicator light to flash problems, could it be a timing issue with the circuit board, or a switching problem in the gas valve. I have power to gas valve (24volts) or the ingintor wouldn't glow I assume of corse we all know what assume means. Any suggestions thanks