Question about Jenn-Air JCB2388G Side by Side Refrigerator

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Loud buzzing noise from inside Jenn Air 2389G fridge

The noise was coming from inside the refridgerator compartment, upper right hand corner. The only part I can see is up there in the schematic is the temperature control. The noise would occur a couple times a day for anywhere from ~ten seconds to several minutes.

Note that everything was working fine in both the fridge and freezer when the unit was making noise. Now the unit has stopped making the buzzing sound. The freezer still works fine, but the fridge is now longer staying cold. So it does n ot seem to be the compressor or compressor relay.

My guess is the temperature control unit in the refridgerator has died, but I am surprised it would make any noise, especially a buzzing sound that can be heard throughout the house. Does my prognoses sound correct?

Thank you,

Posted by d_koon14 on

  • 2 more comments 
  • d_koon14 Jun 25, 2008

    Only the bottom panel is removable on the Jenn Air. The rest of the back is sealed. The fan is free of any obstructions and running silently.

    Thank you,


  • d_koon14 Jun 25, 2008

    UPDATE: When I pulled the solenoid for the refridgerator temperature control, I discovered the flaps that it opens to let cold air in from the freezer were blocked with ice. So I thought this might be the root of the problem thinking the solenoid could make noise if it tried to open the flap but couldn't. The only problem with this theory is that the solenoid is on hte left, not the right.

    In unblocking the vent, I took a cover off in the freezer. As I started clearing away frost, I noticed a lot behind the back panels in the freezer. So I took them off. The coils were completely encased in frost.

    After thawing them I realized this must mean the defroster coil is not owrking. Behold, the defroster control is in the upper right hand corner of the regfridgerator, right where the noise and vibration was eminating from.

  • d_koon14 Jun 28, 2008

    Turns out that the noise was coming from the "Adaptive Defrost" control in the refridgerator and that when the control finally failed 100%, the cold air passage from the freezer to teh fridge became blocked. I defrosted the freezer, including removing the panels from the back of the freezer compartment to get to the coils, then dried the freezer. While the freezer was drying, I replaced the defrost control circuit baord and now it works like new.

  • schylea May 18, 2009

    having same problem, replaced circuit board but is doing it again im ready to throw this fridge outside by the road the noise is awful. I have had repairs 3 times



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douglas smith

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I don't know jennair specifically being from england.
however, there is often a fan inside the back panel and the noise you heard was the fan hitting ice. the reason now not heard and fridge not working may be that the ice has built up so much the fan is jammed

Posted on Jun 25, 2008

  • douglas smith Jun 25, 2008

    i was on the right lines - appliance not defrosted



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