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PTS25LBM GE Profile Defrost cycle messed up

The freezer seems to be in perpetual defrost mode. Disconnecting power resets system and it cools to the proper temperature (0 degrees). However, the next day, it appears to go into defrost mode frequently and for too long as the temperature will rise to 30 degrees and back down to 10 degrees several times over the next several days. I never see 0 degree again unless I unplug the power and plug it back in. I've cleaned the coils with a coil brush and vacuum, but that didn't help. So is my issue the defrost timer, heater, or limiter? Or something else? Thanks in advance.

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  • jm_coates Feb 06, 2009

    Thanks, i took the inside of the freezer out and saw that the top 5 inches of the coil was frozen and the inside temperature was about 15 degrees. Not sure if the defrost is working like I thought. Maybe it's not even going into defrost mode. I thawed it out and started it back up. This morning, the temp was 8 degrees and the fan and comp were not running. After opening the door, the compressor kicked in and the fan too. Thus I'm thinking maybe the defrost mode isn't working at all. I looked into the circuit board in the back and it's about $110 online. Hate to replace it if it's something else. How can I test to see if the defrost is coming on?



    Thanks!

  • jm_coates Feb 08, 2009

    Yeah, I looked for blown capacitors and burned marks on the top, but there were a lot of wires. There is an open plug on the board that looks like it could be hooked up to test equipment, unfortunately I do not have anything that fits that plug. what I've noticed is that the compressor does seem to come on and the fan starts blowing after the doors have been open - th etemperature rises and the thermostat kicks in. I do not know if it ever goes into defrost though. Lowering the temperature setting for the freezer does not get it down to zero. it still seems to hover between 10 and 20 degrees. Is that because the coils are freezing up, or a freon problem, or thermostat problem?

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  • GE Master
  • 4,632 Answers

The GE Profile Refrigerator has circuit boards and sensors are in the freezer that sends a signal to the circuit board to begin and end the defrost cycle. It is very possible the sensor or the circuit board are defective and will need replaced. I will help you solve this if you like. This refrigerator is complex and will take more discussion with you to complete the repair, I am here to help, let me know, Thanks, Sea Breeze

Posted on Feb 06, 2009

  • 3 more comments 
  • John Tripp
    John Tripp Feb 06, 2009

    The control board is were the defrost cycle for the Profile is done. Everything is determined within the control board for time of defrost and time to freeze.Checking the board would require test equipment for that board. Replacing the circuit board is the best option if this refrigerator is not too old. A service technician would switch the board and wait for the results. I really wish there was a simple way to test the board.Sometimes you can remove the board and see burn marks on the back of the board. I would unplug the power and remember the connections before attempting to do this. I hope this helps you get the refrigerator going. Thanks, Sea Breeze

  • John Tripp
    John Tripp Feb 08, 2009

    OK, I am sending you 2 links. One is here at fixya and second is a link to the refrigerator service manual. Look over the first link to compare notes and let me know if these are the same symptoms. If compressor is not coming on then your circuit board may be bad also. Let me know when you look them over and what your next step you want to have answered. Also if the fan and compressor beneath the refrigerator do not always come on that leads me to circuit board again. If compressor ran all the time that tell me in this case the refrigerator is low on freon Yet the capacitor still will need to be checked. If fan runs OK beneath the refrigerator then I would look at start relay sometime inside the compressor where the wires attach or outside combined with the start capacitor. If relay on the circuit board is bad and getting hot after a few minutes it tends to cause the compressor to stop and start. That would cause poor freezing and cooling.



    http://www.fixya.com/support/t230703-ge_...





    http://appliancehelp.hypermart.net/xmb_g...



    Let me know what you find, Thanks Sea Breeze

  • Chris Greene Oct 18, 2012

    Say, I was looking at this for help with my problem and the service manual link is not longer available without a subscription. Do you know of another link for the service manual?

  • John Tripp
    John Tripp Oct 18, 2012

    You can find the Artica/Profile Service Manual by clicking this link=> http://appliancepartsseabreeze.com/appli... John Tripp http://appliance911seabreeze.com/ and here=> http://appliance911seabreeze.com/ge_arti... by clicking on the wiring diagram.

  • John Tripp
    John Tripp Oct 18, 2012

    Try that again http://appliancepartsseabreeze.com/appli...

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