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Defrosting timer is not working correctly??

The defroster was not working and my father found that the timer didn't seem to come on at the correct intervals nor run for as long as it was suppose to. It was a continuous timer that was set for 8 hour intervals and would run for 21 minutes. It cut on here and there and would run for 5 to 20 minutes max. He replaced it.

Now every time the compressor kicks on, the timer goes off.

He said the new timer was slightly different but was the replacement for the old one and looked like the wiring was the same.

Any ideas??
Thanks.

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On most refrigerators the timer is only supposed to run when the compressor is on. It sounds like your replacement timer is incorect, and wired differently. Hope this helps!

Posted on Feb 05, 2009

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The evaporation water tray at the bottom is filling up and over-flowing. No water line leaks can be found. It takes 2 days for the tray to fill up before it overflows. All seals look good and the doors are...


Sorry to read about your problem, I hope this helps you out.

i suggest you turn water off to the unit, and see if water stops, if it does stop you have a internal water leak.

if the water still keeps coming, it sounds like you have a defrost issue. Hence your unit is not defrosting the correct way or i should say over defrosting.

Here is a list of some things that can go wrong.
1. Defective heat coil
2. Defective defrost timer
3. Defective defrost sensor
4. Defective Fan
5. Defective compartment inlet damper (on some models)

You should call a service company to resolve your issue.

Since I tried to help you, Please help me and Rate/Vote on the response. Thanks
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Top mount freezer drain keeps freezing up causing water to collect in refrigerator compartment. Drain is not clogged until it freezes.


Check the Evaperator Fan in freezer for correct operation low air flow will cause the problem. Check defrost timer, heater and limit thermostat, If it is not defrosting correctly it will cause the problem.

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Refridgerator not cold


Hi and welcome to Fixya. When a food section of a refridgerator warms up it is a sign that the unit is not defrosting or there is an air flow problem.

This can be caused by the following components:

1. The defrost timer
2. Defrost bi-metal 60 Deg thermostat
3. Heating element
4. Evaporator fan failure in the freezer compartment

Sometimes the defrost timer will just stop advancing for some reason and ice builds up in the evaporator coils that restircts airflow from the evaporator fan so the food section warms up.

The most likely failure is the defrost timer.

You can see if your uint will cool properly after a good defrosting by doing this:

1. Unplug the unit and unload the freezer section
2. Place a fan blowing into the freezer for about 2 hours. (it will make a water mess so be prepaired)
3. Plug in / restart the unit and monitor the temperature for the next 48 hours (it should be normal or near normal) After 48 hours the food section temp will start to raise again due to ice build up.
4. If the temps return to normal then the unit is not defrosting properly and will need repaired.

You can find replacement parts here:

http://www.partselect.com/AdvancedModelSearch.aspx?ModelNum=KSRB22FHBL01&mfgModelNum=&fkMfgID=3

From the model number you gave the defrost timer is Item 6 of the control diagram

http://www.partselect.com/PartDetail.aspx?Inventory=372261&SourceCode=1#

It can also be found here:
http://www.repairclinic.com/Appliance-Parts?s=t-KSRB22FHBL01-%3d%3d&z=50

http://www.repairclinic.com/SSPartDetail.aspx?s=t-KSRB22FHBL01-%3d%3di844415&PartID=844415

I did not of course diagnose the unit in your home. The part above is the most common failure. Given the cost of the defrost timer I would make SURE that it was defective before ordering.

In order to perform a continuity check of the rest of the defrost system components the bi-metal 60 Deg F thermostat must be above 60 Deg (or jumpered) to read the whole circuit. Jumpering the 60 Deg thermostat will not verify it is working correctly.

Hopefully this gives you a bit more understanding of why your unit is warming up in the food section.

Feb 04, 2010 | Refrigerators

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It sounds as if your defrost timer has failed. Unplugging the unit over night allowed the unit to defrost. If unplugging it overnight or by using a stnd fan blowing into the freezer section for 90 minutes results in the fan blowing cold air then your unit is not defrosting. Most often the defrost timer is the problem. However there could be other defrost circuit like the thermostat or the defrost element. In order to provide you with the correct solution and defrost timer location you should privde your model number for further instructions.

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I have a Estate bran fridge and it keeps defrosting every two days it's a new fridge what could be the problem


HI. This will occur if your defrost module is malfunctioning. There are two types of defrost controllers. The first will be an adaptive control board. This will be located in the control housing, just above the heat shield, in the upper right had side. Older models will have a standard defrost timer mechanism. When these devices are malfunctioning, You will notice erratic defrosting cycles. I recommend to inspect the module, to confirm that it is set correctly, and is operating.


If equipped,The defrost timer is usually found behind the front grill "toe kick" of the refrigerator. It may also be found behind a cover plate inside the refrigerator or freezer, in the temperature control console, or behind the refrigerator near the compressor. It will have an adjustable dial. make sure it is set to a proper defrost interval.


NOTE_ If your unit is equipped with an adaptive defrost control board, and the defrost cycle is erratic, this will require you to replace the board. this type of defrost control module is not repairable.

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Ice is building up in the freezer, all else seems to be working OK. Food has ice all over it.


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If the element can be checked with an ohm meter, (unplug AC power cord to fridge 1st!!!) you might be able to quickly determine that the element has failed, sometimes you can actually see a break in the element, but usually, you need to check for continuity to determine if it's good or bad. Rarely, I've found a loose connector on the element causing intermittent defrosting, but it is rare these days in the manufacturing process/testing.

If the defrost element is bad, via test, then the likelyhood that is the problem. Get a new one and re-install and you should be OK.

Otherwise, it MIGHT be the defrost timer, but experience has shown that the defrost element is prone to fail more often than the timer unit.

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