Author Topic: Amana amv90704CXBA 0611603375  (Read 1708 times)

Offline jamie

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Amana amv90704CXBA 0611603375
« on: January 17, 2018, 02:54:47 PM »
I have a customer that is smelling gas once and awhile. I did not smell it.. when furnace runs apparently he doesn't smell it. I checked all fittings in gas lines. My question is once gas valve turns off during operation and I put leak detector on the orifice going into burner and it bubbles. Maybe the gas valve is passing gas. Is it supposed to bubble with the left over gas in the manifold?

Offline Admin

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Re: Amana amv90704CXBA 0611603375
« Reply #1 on: January 17, 2018, 03:43:41 PM »
No, as soon as the gas valve closes any gas in the manifold would be burned off by the burner, at the end of a call for heat.

It sounds like the gas valve is bad and leaking gas.

Offline harshal

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Re: Amana amv90704CXBA 0611603375
« Reply #2 on: January 17, 2018, 07:51:59 PM »
Sometime gas valve passes a little gas through the manifold,u will find more such cases when furnace is not running maybe in summer.To check turn off heat at thermostat and then use leak detector at the air intake or in that area ,sometime u can sniff too.it may take some time to Icp up the gas bcoz it is little quantity.

Offline Porcupinepuffer

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Re: Amana amv90704CXBA 0611603375
« Reply #3 on: January 18, 2018, 04:27:37 AM »
I remember the odd fireplace gas valves doing this from brand new. The manufacturer said it was still within spec, to a certain amount.  :-\

Offline NoDIY

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Re: Amana amv90704CXBA 0611603375
« Reply #4 on: January 18, 2018, 10:49:49 PM »
Hook up Manometer to inlet of gas valve... Shut off drop to furnace.. Observe manometer. Should not show any drop in pressure.