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I have an Intertherm furnace model GHA-070ABFC-02
After this furnace completes a normal heating cycle, the blower will shut off, then a few seconds later turn on again just to run for a few seconds then turns off. This will happen randomly, sometimes once or as many a 4 or 5 times per heating cycle.

I dont believe this is normal operation, but i could be wrong. We have replaced the thermostat and we notice this occuring then. Is it the thermostat that is cause this?? Doesnt seem likely to me, but then again i am not an HVAC guru.

Any suggestions would be greatly appreciated.

Thanks

Do you still need assistance ?


Thanks,
Robert

I have the same problem. Intertherm MAC 1165 ( SN# n1165 Mac8 AR12 11). Any ideas would be great. I've seen in other posts that it could be the fan/limit switch. can you maybe help me find the right one?

Hi,

Yes, please start a new thread so as not to interfere with this one if the poster chooses to respond back.


Thanks,
Robert