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-   -   Furnace short cycle (https://www.askmehelpdesk.com/showthread.php?t=601327)

  • Oct 5, 2011, 08:14 PM
    sycomore
    Furnace short cycle
    I have a heil high efficient furnace that ignites fine but when blower starts gas valve shuts down
  • Oct 6, 2011, 05:10 AM
    wmproop
    You might try cleaning flame senser with very fine sandpaper or steel wool
  • Oct 6, 2011, 07:37 PM
    sycomore
    Gas valve actually cuts off just before fan starts up like fan limit is causing it. Fan limit is time delay. Could it be fan control or fan relay

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