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    ritaly's Avatar
    ritaly Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 17, 2009, 07:12 PM
    Heater shuts down in cold weather-replaced heater does it again
    3 years ago our heater would shut off in lower temperatures. We replaced the heater on advice from a heater and airconditioner repair company , a few weeks later it happened again. Every winter since then it will shut down in the evening and early am and continue until the temp get higher. We changed the pvc pipes to 3 inch thinking that would help but it didn't. Very frustrating, it seems it must be something outside the system (gas heater)
    EPMiller's Avatar
    EPMiller Posts: 624, Reputation: 37
    Senior Member
    		  
    #2

    Dec 17, 2009, 08:07 PM

    Have someone check the gas supply pressures and regulators. You don't have a programmable thermostat that you forgot about do you?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #3

    Dec 17, 2009, 09:05 PM

    The gas would be colder. That could be natural or cumbustion gas. If there is nothing unwieldy about your vents like 40' or 10 elbows, then I'd look at gas pressure as EP suggested.

    Looks like the hvac company got richer.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #4

    Dec 17, 2009, 11:51 PM
    Is this LP/Propane gas you have or natural?
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
    Ultra Member
    		  
    #5

    Dec 18, 2009, 04:20 AM

    Does the furnace have a status light on the front/blower panel? If so, it will provide valuable clues to the problem.
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