Gas furnace intake freezing/clogging


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Old 01-08-14, 06:55 AM
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Gas furnace intake freezing/clogging

I have a York diamond 95 ultra, installed prior to purchasing house. The past few days have been subzero and two mornings the temperature has been 10 below thermostat setting. When I check the intake it is clogged with snow/frozen condensation. It was not snowing this morning when I cleared it. The exhaust and intake exit the house about 6 inches apart and the intake is about a foot above the exhaust. The exhaust has two 90 elbows to point down and the intake has one to point horizontal. I can already see exhaust condensation freezing on rim of intake. How can I prevent further issues?
 
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Old 01-08-14, 07:15 PM
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Sounds like the problem I was having. My pressure switch kept shutting down the furnace and I narrowed it down to a blockage in the intake. We, too, were having extremely cold temperatures when it happened. I expect the problem to go away when it warms up.

That being said, it's pretty inconvenient for the furnace to quit working when we need it the most! I'll be following to see if there are any steps we can take to to prevent this same issue in the future.
 
 

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