Filter
Top Products
42
Is there continuity across the “Hot Surface Ignitor?” If
no, then replace hot surface ignitor. If yes, then replace
the ignition module.
Main valve does not turn on Put your hand on the gas valve. When the “Valve” LED
lights on the ignition module, can you feel it energize?
If not, then check the voltages at the ignition module
across pins 2 and 7 on the plug “CONTROL”. If there
is 24 VAC across these pins, then check to see if the
“Rectifier Harness” is secure. If it is secure, then
replace the “Gas Valve”
If you can feel the gas valve energize, check the main
gas supply is not in the off position.
Burner Flame keeps going out Is there minimum gas supplied to water heater as stated
on the rating plate? If not, then increase the supply
pressure to the water heater.
Measure the microAmps through the flame sensor using
a multimeter. Is there at least 4 microAmps? If not,
then replace the “Flame Sensor” or flame sensor wire.
Thermostat does not satisfy Is the tank temperature above the temperature set point?
Does the T&P relief valve leak? If yes, then replace
“Thermostat PC Board.”
Blower did not post purge Check “Vacuum Switch” (air intake switch) as
previously mentioned.
Check “Pressure Switch” (exhaust pressure switch) as
previously mentioned.
Check “Collector Limit Switch” as previously
mentioned.
If above switches are all ok, then replace “Ignition
Module.”
INTERNET VERSION FOR REFERENCE ONLY