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Thread: Gas doesnt stay on.

  1. #16
    Homeowner Thatguy's Avatar
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    Aug 2008
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    Take what voltage readings you can and record them, while it's "in a good mood". You may need them later.
    Does the red wire have 24v present when it is working?
    Can you detect voltages on the two blue and one black wire?
    Some of these measurements should be taken with respect to ground, others across two wires.
    Last edited by Thatguy; 06-12-2009 at 08:05 AM.

  2. #17
    DIY Member sctclimbs's Avatar
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    Apr 2006
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    Great idea, I'm away for the weeknd will check that when I get back.
    Cheers.

  3. #18
    DIY Member sctclimbs's Avatar
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    OK, in case you are interested in the results.

    With the heater off there is no power through any of the circuits.

    With it on:
    At the transformer: Red 24V, Blue 24V, Yellow 0 (neutral I presume), Black 120V
    At the wires going from the valve to the igniter and flame sensor:
    Both Blue wires had 24V and the black had 120V, actually 136 but I'm guessing that margin of error of my cheapo multimeter. Hmm, now I wonderer if that is wrong as that wire goes to the flame sensor. I had to jam the probes into a wire housing, maybe not a good connection.

    Once again, thanks for the help.
    Last edited by sctclimbs; 06-15-2009 at 08:44 PM.

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