Rank: Member
Groups: Registered
Joined: 11/5/2014(UTC)
Posts: 3
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My furnace gave me issuesat the end of last winter with the pilot burner. So this year I replaced it and the igniter. When attempting to verify operation, all I got was the induction fan motor running. I had no spark and no gas, let alone any flame. So I put in a new control board and used but garanteed good gas valve. These did not resolve the problem. I have been tracing the circuit and checking voltages. I verified the transformer was outputing 24VAC and also 115VAC was present at the wires coming off the board. I did not find 24VAC at the terminal #3 & #5 of the gas valve at any time. This i understand is essential for gas valve to open. This leaves me to believe the inducer control board may be faultiy. The limit switch and differential switches are operational. I found no obstructions in the inlet and outlet pvc pipes and all the vacuum hoses are clear. Anywhere I should be looking??? Any help would be appreciated, especially since its getting much colder at night now.
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Rank: Member
Groups: Registered
Joined: 3/1/2015(UTC)
Posts: 4
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Check the voltage on the ignitor you replaced make sure you have the right voltage ignitor
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Rank: Member
Groups: Registered
Joined: 11/5/2014(UTC)
Posts: 3
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Problem was the igniter was faulty. Unfortunately it caused damage to my gas valve too. Another ugnitor and a used gas valve and everything ran smooth.
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