When the temps drop here in Texas, it can get miserably cold. If you tried a few times to turn on your heater and it doesn't work, here is a tip on how to troubleshoot your gas furnace

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In this demo, we go through the sequence of operation to see which step has the issue

Jumper the board from R to W
The sequence is:
1. Inducer motor will run
2. Pressure switch will close and Ignitor will come on
3. Gas valve will turn on and should produce flames
4. Once flames are verified, Blower motor will run

In this case, the gas valve did not come on. We got our multimeter out and tested for 24 volts coming to the gas valve. Since there was voltage, we determined the gas valve was bad and changed it

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We provide emergency heater repair in Keller services for most of the area. Seal Heating and Air are HVAC Keller professionals who get the job done right every time. 817-382-7088



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