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

    Feb 15, 2008, 08:35 AM
    Rheem Criterion II--heat cycle works, then shuts down
    Hi-

    I'm having a problem with my gas furnace and don't know where to start to find out what it might be. When the thermostat calls for heat, the draft inducer kicks on, the ignitor glows, the gas starts and burns for a short time and then shuts off. It tries this whole cycle again, with the same results. Sometimes the blower runs by itself with no heat.

    Can anyone make suggestions as to what this problem might be? I'm hoping it's a part replacement and not a big deal...
    Thanks in advance for your help!

    Lisa
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Feb 15, 2008, 06:38 PM
    If your unit has a flame sensor clean it or replace
    joesdough's Avatar
    joesdough Posts: 1, Reputation: 1
    New Member
    		  
    #3

    Dec 15, 2008, 10:17 AM
    Comment on hvac1000's post
    Not much help... if no flame sensor
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