Furnace reignites randomly

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catour
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Joined: Sun Dec 31, 2017 11:16 pm

Furnace reignites randomly

Post by catour » Sun Oct 07, 2018 2:49 pm

Hi, with the beginning of this heating season I noticed that my furnace burner sometimes reignites intermittently during burning. This is a high efficiency furnace and other than that strange thing it works well. I've shared a video which shows the issue. You can hear that clicking sound and see the burner goes off for a split second and then on again. This may repeat many times with random intervals until it stabilizes and goes on without interruptions. I would appreciate any suggestions on what it can be. Here is the video: https://youtu.be/ZlJiAyJSh1k


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Shannon
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Re: Furnace reignites randomly

Post by Shannon » Sun Oct 07, 2018 9:38 pm

I have never seen that issue before but would suspect it is a control board issue or sensor. I would have a Tech come out and diagnose it to be sure.
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catour
Posts: 6
Joined: Sun Dec 31, 2017 11:16 pm

Re: Furnace reignites randomly

Post by catour » Mon Oct 08, 2018 1:49 pm

Sure, I just want to gather more info on this before calling a technician.

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emtnut
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Re: Furnace reignites randomly

Post by emtnut » Mon Oct 08, 2018 2:53 pm

I agree with Shannon, probably a bad pressure sensor.
But it could also be that the gas valve is faulty or clogged .
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