I have a Tempstar Heat pump system and starting this year I went to heat mode. Heat pump comes on along with the indoor blower. 5 min later the indoor blower will turn off but heat pump remains running. System has an ECM indoor blow which I have replaced. Replaced fan relay and board, replaced thermostat and heat pump control board. The only thing left to replace is the electric heat kit. Cooling mode works fine. Any suggestions?

  • Model numbers of all items would be helpful.
    – FreeMan
    Nov 3, 2023 at 17:08
  • What troubleshooting did you do before you started unloading the parts cannon at this heat pump?
    – KMJ
    Nov 3, 2023 at 17:31
  • When you say the heat pump remains running, do you mean the fan in the outdoor unit, the compressor, or both remain running?
    – Greg Hill
    Nov 3, 2023 at 17:57
  • Thanks for your reply, Both the outdoor fan and compressor remain running. The indoor fan shuts off 5 min later.
    – Cole
    Nov 7, 2023 at 14:07
  • The indoor air handler model is Tempstar (INTERNATIONAL COMFORT PRODUCTS) FEM4X1800BL2.
    – Cole
    Nov 7, 2023 at 14:11


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