Question about Jenn-Air JSD2789GES Side by Side Refrigerator
Replace the defrost heater and still frost up
Hi, I'm curious about whether your original defrost heaters where faulty, did you ohm them out ( continuity ) ? Typically on your style of fridge made by what was at the time Maytag, now Whirlpool, it is the "adaptive defrost control" which fails. You'll also want to ohm out the "dts" ( defrost termination switch ) or defrost bi-metal or defrost thermostat as some refer to it. Back to the adaptive control though, it is actually located in the fridge compartment up in the far right corner covered by the light cover and temperature control/damper assembly shield. The part number for it listed at "repairclinic" is #948430 and is $67.45 as I write this. Let me know what you find. Thanks for coming to "fixya" for your inquiry. Let me know if I can assist you further and please take a moment to rate this info accordingly. Good luck. Macmarkus :)
Posted on May 01, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
My fridge is running but not cold enough: Start out with the easy stuff first...make sure the lights go out when you close the door(s), make sure the doors are closing properly and the gaskets are closing fully and are not torn or ripped. Check to make sure the evaporator fan in the freezer is working, this fan blows the cold air around. If the fan is not working, possible bad fan motor - check for power to the f
The most common fridge "not cooling" problem is a frost free failure. Remove the access panel in the freezer section to expose the evaporator coils. If the coils in the freezer section get plugged up with frost, this frost will block the evaporator fan motor from blowing the cold air around. The fan blade can also hit this frost and either become noisy or stop altogether. Locating the defrost timer can be tricky....they are often hidden behind the back bottom corners of the fridge at the bottom, in the last few years the timers have been located in the ceiling of the fresh food section, and some are behind the cold control cover. Once you locate the defrost timer, slowly turn the screw likeknob in the middle of the defrost timer with a straight screwdriver until the fridge shuts off. You are now in defrost. If the defrost heater (s) comes on now, replace the defrost timer and defrost thermostat. If the heater(s) does not come on, you can continuity test the defrost heater for continuity or test for 120 volts to the heater(s). If you have no power to the defrost heater (s) you can also bypass the defrost thermostat to see if the defrost heater will come on, jumper the wires together to bypass the defrost thermostat. If the heater now comes on, replace the defrost timer and defrost thermostat. If the heater itself is bad, defrost the fridge with a hair dryer, replace the defrost heater (s) and defrost thermostat. If the defrost timer seems "hot" to the touch or is noisy ( like a ticking or screeching noise )...replace it.
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