AC is icing up but not cooling
Hello, We have a 15k BTU Colman AC with a heat pump in our Open Range fifth wheel. The unit wasn't cooling so I replaced the capacitors, but to no avail. The compressor is running and the lines ice u...
Forum Discussion
For icing up:
Assuming you have a wall thermostat you should have a freeze sensor that needs to be right up on the evaporator. These are notorious for falling away due to poor installation.
Secondly while you have removed all the interior trim to find the freeze sensor, check that the divider that separates the air in and air out plenum is well placed and sealed to prevent recirculating of chilled air.
But I find it odd you say it is iced up and the tech says a needs a new unit. Are you sure it is iced up? Usually they will blow cold air for at least 20 minutes before the ice interferes with cooling.
Assuming you have a wall thermostat you should have a freeze sensor that needs to be right up on the evaporator. These are notorious for falling away due to poor installation.
Secondly while you have removed all the interior trim to find the freeze sensor, check that the divider that separates the air in and air out plenum is well placed and sealed to prevent recirculating of chilled air.
But I find it odd you say it is iced up and the tech says a needs a new unit. Are you sure it is iced up? Usually they will blow cold air for at least 20 minutes before the ice interferes with cooling.
