I live in a two story house. Cold AC air accumulates in the lower floor upstairs gets warm. Can I Program the fan only to come on 4 short period?

My current thermostat will allow the fan to come on without turning on the Compressor or heating coils in my system. But the fan only mode is either always on or only on when the compressor is on. The fan motor is an electricity hog, so I want to program the recirculation for periods of 15 minutes at the times I want to schedule. This will allow me to avoid having to turn on the compressor and heating element and take advantage of the residual radiant heat and cold already in the house, and recirculate it to the upstairs.

Will this unit allow for programing of the fan-only in the thermostat?

  • Asked by Richard L from Midlothian
  • Jun 11, 2012
Nest Learning Thermostat

Nest Learning Thermostat

Product No Longer Available

2 Answers from the Community

  • Answer

    Not currently, it seems. I base this both on another review here and @nest's reply to a tweet of mine: "Currently the fan has two settings - Automatic and Always On."

    • Answered by Joe D from Toronto
    • Jun 24, 2012
  • Your best bet is to have your home "air test and balanced" You must have the appropriate air diffusers or grilles to accomplish this. Sometimes when you turn just the fan on with no cooling, the air going through the wet coils tends to evaporate moisture off the evap coil, back into the home and it may get humid.

    • Answered by John F from Pompano Beach
    • Oct 21, 2012