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Diagnosing a short

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whydowesit
whydowesit Member Posts: 1
edited January 5 in Gas Heating
I have a client with a Rheem furnace.  The inducer fan comes on after turning the power on, (no call for heat). >>Disconnected t-stat; inducer fan motor on with power. Replaced IFC. .   Inducer on when power is switched on.
Can't figure how it's got power.
Rheem mdl#RGPH-04NAUSR

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  • ratio
    ratio Member Posts: 3,640
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    Check the gas valve. Some control boards will turn on the inducer for an open circuit on the gas valve.
  • 109A_5
    109A_5 Member Posts: 1,386
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    Hello @whydowesit,
    Maybe also...




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