Quote:
Originally Posted by ltusler
There should also be a flame sensor, it may be corroded, pull it and sand it with some emery cloth and try again. Then order a new one.
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I never get a flame to get that far..
This is how it is supposed to work:
1. Heat call from t-stat
2. The inducer fan comes on
3. pressure switch checks to see if fan came on..
4. the igniter heats up
5. the gas valve opens
6. all the burners light
7. the flame sensor detects a flame
8. the plenum heats up
9. blower fan comes on.
I dont make it to step 5. Everything up to that point works, so either my gas valve is bad, or the control board is bad. Trying to figure out which wires to test for the 24v to which one is the problem. Voltage there, bad valve, no voltage, bad control board. The wiring schematic just shows all four wires going from the board to the valve. I think there may be markings on the valve. Ill check that tomorrow.