Coleman AC freezing up constantly?
Hello all! I posted once or twice a few years ago and got great advice. I'm wondering if anyone has experience with DIY maintenance on their rooftop AC unit. We are strapped for cash at the moment ...
Forum Discussion
If it's a Ducted A/C, using a Wall Thermostat, it has a Freeze Sensor that has to be correctly placed on the Evaporator Coil. That's the one you can't see till you pull the shroud and the front of the sheet metal cabinetry. If it's Ducted, be sure the Ducting is properly connected and hasn't shifted so as to form an obstruction to air flow.
If it's NOT ducted, NO freeze sensor. If you clean it (and be sure to clear the Drain Pan Holes!) you may be able to get by with running it on LOW. It's pretty humid in FL and we can run our Coleman Mach 15 non-ducted on Low. Otherwise, HIGH fan speed really helps.
The pix above probably came from Chris Bryant's Article and reading that should help you get the job done.
If it's NOT ducted, NO freeze sensor. If you clean it (and be sure to clear the Drain Pan Holes!) you may be able to get by with running it on LOW. It's pretty humid in FL and we can run our Coleman Mach 15 non-ducted on Low. Otherwise, HIGH fan speed really helps.
The pix above probably came from Chris Bryant's Article and reading that should help you get the job done.
