ac froze up when fan on low speed.
Exactly twice my a/c has frozen up.Once last year and just this weekend. Both times it was very hot and humid and the unit ran all day trying to keep up and at some point the fan speed was set to low...
Forum Discussion
Set fan to high.......
Low air flow, high humidity causes icing on evap coil.
Dirty air filter, low air flow......same
Dirty air filter, low air flow, dirty evap coil......same
Low air flow, high humidity causes icing on evap coil.
Dirty air filter, low air flow......same
Dirty air filter, low air flow, dirty evap coil......same
