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-   -   Rheem Criterion II--heat cycle works, then shuts down (https://www.askmehelpdesk.com/showthread.php?t=184293)

  • Feb 15, 2008, 08:35 AM
    lisapawlak
    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
  • Feb 15, 2008, 06:38 PM
    hvac1000
    If your unit has a flame sensor clean it or replace
  • Dec 15, 2008, 10:17 AM
    joesdough
    Comment on hvac1000's post
    Not much help... if no flame sensor

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