Question about Kenmore Defrost Timer 482493 Whirlpool Save Big
What can I use replace the tmdg823vb9 defrost timer on my model JRT 196L refrigerator with thank you..... Dean
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Posted on Jan 02, 2017
Hi, Is there ice/frost build up at the rear inside of the freezer?. Your problem is going to be with your defrost system. I will also assume you have the ability to repair this yourself.
This is going to be one of three problems with your refrigerator, 1st thing to do is remove shelf’s and panel in the back of the Freezer. You may see ice build up on the evaporator, don't worry get a hair dryer and melt the ice.
Next locate the wires for the defrost heater and using a multi-meter/ohms meter test the heater for continuity (it should read infinite) if the defrost heater is bad replace it.
This is what a typical defrost heater looks like:
If the heater is good test the defrost thermostat. This should normally be done when the evaporator is still covered with ice since it will only activate at 40f - 50f depending on the thermostat. When tested with the ohms meter at below 40f it will read infinite. It is normally clipped to the upper right of the evaporator and look something like this:
The next possible problem could be the defrost timer. If you have tested the heater and thermostat and they have tested good next find the defrost timer, If your refrigerator has a mechanical one it will either be located inside the control panel in the fridge or behind the panel below the doors. Once you have located it advance the dial until you hear a click. This will initiate the defrost cycle. If your heater begins to get hot this will tell you that your timer has stalled and needs to be replaced. A typical mechanical timer looks like this:
If your refrigerator has a digital defrost timer you should locate the tech sheet. Normally you can find this behind the panel under the doors. It will tell you how to initiate a manual defrost cycle. As before if the heater gets hot you will have to replace the mother board normally located behind a panel at the rear of your refrigerator.
If your fridge is warm and there is no build up of frost/ice on the back panel inside the freezer then you problem is most likely going to be the evaporator fan, have you heard the fan running in the past few hours? if you are not sure pull the panel out to where you can see fan and watch it over the space of an hour to see if it turns. If you don’t see it turning replace the motor. This is what a typical evaporator fan looks like:
Hope this helps. If you have any other questions please feel free to comment again. If you decide to get a repair guy in should not cost you any more then $120 - $200 depending on make/model/problem Good luck & thanks for using Fixya! Mike
Posted on Nov 20, 2009
The timers are usually shipped so they are in the defrost (not running) mode. If it doesn't run, turn the shaft until it starts.
Make sure the machine is plugged in and turned on.
If it has a loose flying lead, that must be slide over the proper terminal.
It normally is #2 (the end terminal), but could be the style machine that it goes on the center terminal of the cluster of 3 grouped together. Check with the parts house if your not sure.
Thanks for using FixYa
Posted on Dec 21, 2009
SOURCE: FREEZER WORKING BUT FRIDGE NOT
Remove the rear panel in the freezer and see if the evaporator coils are frozen over.
If so dethaw coils with a hair dryer.
Reassemble freezer and set controls to the normal position.
Although you replaced the defrost timer if the coils were frozen over in the freezer no air can transfer to the ref. section from the freezer.
If you do not want to dethaw the coils unplug the ref. for 1-2 days and leave the doors open .The coils will dethaw by then.
Posted on Jan 17, 2010
it may not have a timer but a aditive defrost control . most common with newer model .. its located in the fresh food side just behind the thempt contro knob and its a pc board .. . . do ck your heater first and the defrost terminator as thes two parts ore more common to cause your freeze up .. mm
Posted on Aug 18, 2010
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