[JPot]

Good day. I've got a Trane XL 1200 outside heat pump unit that keeps freezing up solid. I metered acrossed the Swithover Valve Coil and it read fairly low ohms (15ohms). While testing different things, I noticed the Outdoor Temperature Sensor (ODS) read approximately 18.4K Ohms at an outside temperature of about 52 degree. This seemed OK compared to the graph. I tested acrossed the leads of the Coil Bottom Sensor (CBS) and did not get a resistance reading. It appears to be open. The CBS is mounted directly to the tube. Is this coil sensor bad? Is there a way that I can eliminate the defrost control? The Trane part# for the Sensor Assembly is SEN0347. Where can I get one of these sensors and will I have to purchase the sensor that is pre-attached to the tube? Your help and attention to his matter will be greatly appreciated.

[hvac1000]

No you cannot eliminate the defrost control unless you just want to run the unit as a A/C unit and not a HP.

Before I would start tossing money around I would stop in to a local Trane dealer to get there take on your situation. I am sure they will talk to you since you will be buying your parts from them.

Trane parts can be hard to come by unless you are a Trane dealer. Also there will be no warranty on electrical/electronic parts since you are not a dealer or registered service person. I only mention this because just the other day I stopped by a Carrier supply house and the homeowner at the counter was a lillte mad because they would not sell him a part they also told him that even if he could get a part they would not warenty it since he was not a dealer.

Many other brands of units (Goodman for one) will sell units and parts to anyone.

If you want to roll the dice go here for a list of Trane parts company. Just put in your state.

HVAC Service, HVAC Supplies, HVAC Parts, Trane Commercial - Parts and Supplies, Indoor Air Quality

[Dirtyred73]

I have a TRANE Indoor attic unit and Outdoor unit unit all connected to one. The problem is freezing up what can I do to save my money first? How can I keep it from freezing up? Is there a reset button on the one in the attic? Please help getting hot here in Texas.