Cased Upflow
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![]() ADP HA14660C240B2501AP 5 TON UPFLOW CASED V COIL R 410A 147937 US $246.00
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![]() GOODMAN CAPF3636A6 3 TON UPFLOW DOWNFLOW CASED A COIL 50007 US $221.00
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Furnace makes an "explosion" sound while running?
Not all the time. And not at a specific time.
Upflow gas furnace started making a loud boom or explosion following snow storm. Thought snow may have been blocking air intake. Not the case. Intake and exhaust tubes are clear.
Technician came today and was stumped.
Any suggestions?
In the middle of the cycle
9 year old
Comfortmaker
-Maybe the gas valve is going bad. (gas regulator) It might be letting too much gas in at certain times.
-Maybe the furnace isn't purging before or after it cycles (causing gas to become left in the lines).
How old is the furnace??
-See if someone can time the ignition & cycle times & use a gas sensor to see if too much gas is getting into the pilot. (a professional of course)
Good luck!!
Furnace & Air Conditioner Installation - The Stemberk House
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US $460.00







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