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
Here's a Cleaning Process. It has to be done from OUTSIDE. On the roof, plastic removed along with a little sheet metal. Will give you a chance to check position of the Freeze Sensor. Also check to make sure your ducting isn't restricted.
