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I have a trane XL 1600 heat pump pkg unit the coil freezes up the filter is new and the fan is running any ideas

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  • Bob Evans Jul 08, 2009

    The unit has a bad expansion valve and is not opening all the way.

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Concur, the coolant could be low and it will cause the coils to freeze up. However, other things can this is as well.

I had the exact same problem on my unit. The first couple of times it happened, I would defrost the coils and it would work for 2-3 days. Over the course of a week the blower motor quit working. You could see it trying to start, it would move 1-2" and stop. Experts will tell you the starter capacitor(s) are bad. This is true 95% of the time. The part they leave out is, the starter caps for the variable speed blower motor is a part of the ECM module located on the back of the motor. In some cases, the captivators will show obvious damage and can be replaced by a DIY with a soldering iron and about $10 in parts. In my case, the ECM module had to be replaced, cost $400. The only website I could find that sold Trane parts directly to the public was www.expertappliance.com.

Posted on Aug 22, 2009

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The coil will freeze when the system is low on R-22. The system is low because someone never fully charged it and/or it has a leak...

Posted on Jun 28, 2009

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Posted on Jan 02, 2017

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Brand New 2 weeks old 4 ton Trane compressor leaks a lot of water onto pad


If the unit is running in cold weather than there is ice building up on the coils located outside. This is normal in that the unit is running in heat pump mode heating inside and cooling outside, After the unit detects the ice build up it briefly reverses the cycle heating the outside coils melting(defrosting) the ice which you observe as water on the pad.

The video gives you an example of the defrost cycle!
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the breaker may need replaced, I would start there first. I am assuming that it has a dedicated line (meaning only the heat pump is off that circuit), if not then it will need to be wired that way...Good Luck Tim

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are you still having issues with your twg030a140b1? the heatpump that you own should not be having this issue the question is the configuration of the coil in the AHU is it properly installed. I am a distributor for Trane equipment and am wondering if the install tech installed correctly

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Hello there:
please contact a certified trane dealer i think that you are having a thermostat problem they may be able to assist you on setting the thermostat the correct way . ok?
best regards
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Thermostat wiring


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Please note. Not all installers use the proper color codes when they install or replace equipment. It may be necessary go go to the furnace or outdoor unit to verify what wires are for what purpose. Also be sure there are no splices in the wire that could change the wire colors between components.
  • R (red) or Rh (Red heat) 24 volts from equipment.
  • Rc (Red cooling) 24 volts from transformer in cooling equipment.
Note: If only furnace has a transformer and cooling equipment does not jumper Rc and Rh.
  • W (White) sends 24 volts to furnace control to start the heating cycle.
  • W2 (no standardized wire color, usually whatever wire color is available) controls second stage heat.
Note: W2 is most often used for heat pumps to control what is called emegency heat or Auxillary heat, and most often will use the white wire.
  • Y (yellow) often (blue) is used, controls cooling unit (outdoor condensing unit) also is used for heat pump heat.
  • Y2 (no standardized wire color, usually whatever wire color is available) controls second stage cooling.
  • G (Green) controls the fan "on" operation of the furnace/air handler. Also often is used to start the blower for many electric furnaces.
  • C (common) most often brown but can also be black or other color available to installer.
  • O (orange) Energizes heat pump reversing valve for cooling (Trane and most other brands).
  • B (Blue) Energizes heat pump reversing valve for heating (Rheem, Ruud and Weatherking).

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No heating, cooling or fan.


I'm confused. You have a Trane, but are asking about the Goodman warranty. I missed something there I'm sure, sorry.

"IF" Trane has a recall or warranty issue, then any qualified technician should be able to help you with that. The parts would be provided by trane in such an event, but unless the unit is less than 1 year old, chances are you will have to pay for the labor.

Being an electricain help if you want us to assist you in troubleshooting.

This link takes you to the TRANE contact page. They can answer any warranty/recall questions you have.

Jan 21, 2009 | Heating & Cooling

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