If the panel door of my air handler is not closed properly, will the unit freeze up [Archive]

View Full Version : If the panel door of my air handler is not closed properly, will the unit freeze up

myrtle1

Sep 16, 2012, 05:14 AM

I cleaned the drain line on my Grand air unit and the panel door was ajar. By the end of the day the coils had frozen

hkstroud

Sep 16, 2012, 07:01 AM

Yes, it will do that. Close the air handler properly. If the ice build up has not melted and this is a heat/cool unit turn to heat for a short period to melt the ice and then revert to cool.