Air conditioning/running the fan
I have read many comments about the argument, "leave fan on auto vs. leave fan on all the time" while air conditioner is running. I am leaning towards leaving it on auto, but my spouse believes otherwise; here's the problem we have:
The thermostat for the air conditioner is upstairs in the hallway. I noticed it was very cold one day and saw that the thermostat read 78Ã¯Â¿Â½F; it wasn't 78Ã¯Â¿Â½F, not even downstairs.....where it is always warmer than the upstairs when the air conditioner is on. The thermostat was set at 72Ã¯Â¿Â½ (I prefer 75Ã¯Â¿Â½) and I figured the air conditioner kept running the entire time trying to get from what it "thought" was 78Ã¯Â¿Â½F to the setting of 72Ã¯Â¿Â½F. I figure this to a big waste of energy and dollars. We both know this happens with the thermostat. However, he believes that by leaving the fan on all the time, this "misreading" won't happen, so he insists on setting the fan on "on" instead of "auto". Well, I left it on the entire time and today the "misreading" occurred again.
Does someone know if the position of the fan (ON vs. AUTO) has anything to do with the occurrence of thermostat not reading the temperature properly. Spouse claims that the air conditioner serviceman said the fan would be best set on "on" to avoid this misreading. I remember the serviceman not being able to fix this problem, as he was called several times for the same reason.