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My Goodman furnace shows a one blink code that translates to ignition failure and suggests checking the flame sensor (which I replaced) the gas valve (which I replaced) gas pressure (had new gas meter installed) or restricted gas flow (which I can't imagine) Any help is greatly appreciated.
is the igniter working(glowing) when it should be?
the steps for a furnace to start up and work proper
1. the thermostat calls for heat
2. the inducer motor starts up (maybe for 30 sec.
3. the igniter comes on (glows)
4. the gas valve then opens and burners fire up
5. after maybe 1 minute the blower comes on and blows heat into ductwork which routes heat into house
the gas valve won`t open up untill the igniter comes on
Observe operating sequence, should go like this: 1) inducer starts/runs, 20-40 seconds 2) ignitor glows, 17-34 seconds 3) gas control opens & burners light, 25-40 seconds 4) blower starts/runs for duration of heating cycle. Post back.
is the igniter working(glowing) when it should be?
the steps for a furnace to start up and work proper
1. the thermostat calls for heat
2. the inducer motor starts up (maybe for 30 sec.
3. the igniter comes on (glows)
4. the gas valve then opens and burners fire up
5. after maybe 1 minute the blower comes on and blows heat into ductwork which routes heat into house
My Goodman furnace shows a one blink code that translates to ignition failure and suggests checking the flame sensor (which I replaced) the gas valve (which I replaced) gas pressure (had new gas meter installed) or restricted gas flow (which I can't imagine) Any help is greatly appreciated.
you may have replace the flame sensor and gas valve and didn`t need to,,,,,,,the flame sensor very seldom goes bad,,,(just needs cleaning with fine sandpaper)
the gas valve won`t open till the flame sensor sees the igniter glowing
Check the string of limit switches that surround the burner assembly. Follow the purple wires from one to the next, press the tab in the center, see if any of them are popped. If so you may have a heat exchanger leak.
Linear Mode
