Question about Jenn-Air JSD2789GEB Side by Side Refrigerator

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Suspect defrost issues with JSB2789GEB Jenn-Air/Maytag

Noticed some buzzing noise, sometimes when compressor would shut off, could this have been a defrost relay trying to switch on?. This is a side by side, the freezer door got left slightly open a few times, and then fridge side was not as cool as it should be. Looked at coils in freezer and they were frosted up thus no air-flow to fridge. Manually defrosted and was ok again for a while. Now I think the defrost cycle may not be working at all, have not noticed any buzzing like before. Freezer stays well cold, but fridge eventually gets a bit warmer. Please help with what to test/check, etc.

Tim

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  • trmay May 24, 2009

    Thanks, the fridge still seems to cycle on & off ok, but when I check behind the panel ( coils ), seem to have quite a build up of frost, think that it gets too much and air-flow can not get to fridge side. How can I make sure defrost cycle is working?

  • trmay May 24, 2009

    Other posts seem to think it could be: Adaptive defrost control board
    Is this easy to replace or test?




  • NorseXNW
    NorseXNW May 11, 2010

    As I was afraid, some new units use a printed circuit board and I know of no way to force it into defrost mode. You'd have to take the panel off the evaporator and catch it in the defrost cycle and see if there is heat being generated by the heating element in the evaporator. Perhaps someone with more expertise in the circuit board style defroster can help. Check web sites, youtube included for any helpful information and don't forget the local library. What is the warranty on the fridge? Have you contacted the maker of the unit?

  • NorseXNW
    NorseXNW May 11, 2010

    The buzz may have been the heater melting the ice on the evaporator. You will want to check the defrost timer and see if it is working. Research defrost timer and visit Jenn-Airs web site for a parts breakdown to help you locate it or look at your manual it should have a parts breakdown. Does the fridge run all the time?

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SOURCE: fridge wont get cold and freezer gets cold then gets warm

I Had The Same Problem , Went To partselect.com  You Will Find A Solution And Reasonable Priced Repair Parts There

Posted on Apr 18, 2008

  • 1314 Answers

SOURCE: cooling coil in freezer compartment froze up

id say your right the unit should defrost for 30 mins of every 8 hours of compressor runnig time now that's not normal time because the thermostat cuts the unit off and on every now and then . the timer for defrost measures how long the compressor runs and it varies with how often the doors are open im sure parts of your defrost system are inoperative send me an e mail with your model number and i will help b4829@yahoo.com

Posted on May 26, 2008

mikedurland
  • 481 Answers

SOURCE: Re: Refrigator will not stay cold

defrost problems are caused by 3 things
bad: 1) defrost timer/ timer board 2) defrost heater (in freezer) or burnt wire going to the heater 3) bi-metal thermostat (round metal piece attached to the coils with     at least 2 wires going to it)
a good technician can test components without the machine running. all you need is a simple $5 meter any tech that gets angry, show him/her the door!

Posted on Jun 28, 2008

tborn6
  • 700 Answers

SOURCE: freezer is frosting up

check your gasket on the freezer it may not be sealing properly. that is the main cause of the freezer compartment frosting up. also when you defrosted it did you otice if the drain line was clear and the water was going out of the freezer?

Posted on Dec 27, 2008

  • 103 Answers

SOURCE: freezer works but refrig has 60 degree temp .evap coil is caked

Hi: Did you check the defrost heater itself? I checked Jennair and Sears parts to no avail. If you didn't check the heater it will be at the bottom of the freezer behind where you removed the back cover. A glass tube with a coil in it. If the coil or tube is broken replace that insead. I hope I helped, Jeff I found a website with the defrost timer, but not the location of the timer on the fridge. http://www.appliancepartsworldwide.com/store_SearchResults.aspx?S=1131392&ST=PBM

Posted on Jun 01, 2009

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