[left]Hey everyone, looking for for a little help. I have a trane gam5a0b30m21sab that was built in 2013, and have had constant problems the last year. The most recent issue I have is that the coils are freezing, I had a company check refrigerant level and it wasn’t only about a pound low, I’ve checked to see if the coils were dirty and they’re pretty clean. One thing I noticed today is that the blower will run for a minute or two and then stop running but everything else sounds like it’s still running which is why I think the coils are freezing. When looking around at the blower I do hear a humming noise so not sure if it’s a capacitor. The motor on the blower doesn’t seem hot either. Any help would be greatly appreciated.[/left]

I discovered the compressor contactor switch isn't releasing when the air handler is turning off and the compressor continues to run. Unit is from 1988. It otherwise works fine, provides plenty of cooling. I turned off the juice at the circuit breakers and popped the top off and found cobwebs everywhere around the circuit board, capacitors and contactor switch - vacuumed it off and found the contactor stuck in the On/Closed position. The spring that applies pressure is still intact. Worked it by hand a few times, vacuumed off the unit, it seemed to be working freely again and seemed to be turning off with the air handler but it started doing it again. I've got it turned off at the circuit breaker. I don't think it's a matter of the magnet not turning off, it doesn't want to stay closed once I've jiggled it with my fingers. My next step is to pull it and give it an off-unit inspection and cleaning. Any suggestions for what I should be looking for? Is it typical for these to need replacing? My assumption is it's a matter of the switch simply sticking due to wear and/or debris but I wonder if there's something else that could be going on that's outside the scope of my awareness. Thanks.