Gas control valve issue???


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Old 10-12-09, 11:21 AM
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Gas control valve issue???

Can anyone help. My peerless gas furnace started out with a failed transformer. After replacing the L8148E aquastat, the relay for the pump chatters alot. I shut it down and have chacked all components in the loop. I have a pilot and I have 24 V to the gas valve and the system runs OK with the gas control disconnected for the aquastat but as soon as I hook up the gas control vale, the relay chaters and the transformer is in overload. How do I tell if the gas control valve is bad (model V8200A)

PS, no resistance across gas control terminals.
 
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Old 10-12-09, 04:23 PM
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When you say "no resistance", do you mean that the meter reads ZERO OHMS ? as in SHORT CIRCUIT?

In other words, if it's a digital meter, it reads 00.00 and not OL ?
or if analog meter, it swings all the way to the right ?

That valve should only draw around 300 milliamps, so that would put the resistance around 80 ohms or so if it was good.
 
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Old 10-12-09, 06:07 PM
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Gas control

Thanks. The old control valve was a dead short, 0 ohms. The new one was ~500 and works great. This must be what cooked the transformer in the aquastat.
 
 

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