Question about Kenmore 73502 / 73504 / 73509 Bottom Freezer Refrigerator

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Kenmore 596.75509400 bottom freezer defrost circuit test

Went into service test one. Readout indicates defrost thermostat open. Can't observe defrost heat and voltages. Unpluged defrost heater. Re-entered service 1. Display now indicates thermostat shorted. Voltage reads 120volts on plug-ins. Heater coil measure 29ohms which I think is right according to wiring diagram. How can I observe defrost? I plug connectors back in, enter service test 1 and am now back to thermostat open condition.

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  • Marvin Putze Aug 10, 2007

    Above should read observe defrost heat.

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If the thermostat is not cold enough it will be open and not allow the heater to come on. I would suggest you let the unit run for a few hours then check on the defrost cycle. in that time the terminator should close allowing the heater to work

Posted on Aug 10, 2007

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Posted on Jan 02, 2017

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1 Answer

Fridge and freezer both not cooling


Yes , your fridge can get stuck in defrost mode. If you can locate the thermostat. Sometimes buried behind a panel in the freezer. There's an adjustment screw or trim screw that allows you to advance the timer on the thermostat. Sometimes they stick in the defrost mode. It may happen once and never happen again. If however it does continue you will have to replace that part.

Oct 28, 2017 | Amana Refrigerators

Tip

Kenmore side by side is not cooling , and the coil at the back is freezing


Hi.

When the fridge is not cooling , and the coil at the back is freezing, the problem is always the defrost system.

The defrost system function is to prevent the condenser coils from freezing.

When the condenser coil is frozen, the unit will not cool down anymore, as heath connot be pumped out of the fridge and freezer.

The defrost system comprises of a defrost thermostat, a fan, and an heating element, and it is located behind the freezer firewall.

In the example below, taken from my daily Fixya solutions I will use a Kenmore side by side 363.50227000.

If your model is different, then you will need to order parts for your model, do not use the parts below. To find parts , try Sears, or see: Where do I find parts and diagrams for my...

Also diagram and parts location may differ.

Here a diagram, click on the picture to enlarge:

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Here parts to be tested, click on the link to purchase part:

Defrost thermostat (part 240 on diag)

Is tested removing it from the unit, after disconnecting power firts. Test is done using a multimeter set at Rx1 (Ohms).
Ifthe part is good the multimeter will read low or zero impedance at roomtemperature, if thermostat is bad, it will stay open (infinity).



Heater (part 230)

Itis tested reading Ohms , similarly to thermostat, if the heater hascontinuity, then it is good, if circuit is open, it must be replaced.

evap fan asm (Part 613)
It is tested energizing the motor, and observing if it is working.


Thesystem can also be tested by jumping the defrost thermostat, and observing if the element is heating up and the fan working.

for safety reasons, all testing and repair must be done by a trained person.

Before attempting repair, better contacting Kenmore after sale service at the number listed on your owners Use and Care manual.


Ginko.

on Jan 28, 2010 | Kenmore 22.0 cu. ft. Side-By-Side...

1 Answer

Fridge not cooling .kenmore trio frezer works fine


If there is no cooling at all on the fridge section but the freezer works then it is confirmed that the compressor and gas pressure is OK. Now shut off the fridge and leave it powered off while you clean and check the evaporator for frost. If frost is seen it is a good indication as the compressor is working with sufficient gas within.
Now after about 6 hours plug in the fridge to start. Observe cooling to happen in about one hour and ice to from under three hours.
Earlier make sure that the thermostat was set to normal mode for freezer and fridge.
However if ice forms in the freezer then observe the fridge for about 24 hours for cooling to continue and the fridge to cut off . If not the auto defrost timer, or the thermostat must be checked. Frost formation without defrosting could block the air flow and so shut the air passage to the fridge. Also the blower fan must work and if this is not working then the fan can be faulty. Also a fault on the control unit is a suspect to non functioning of any one of these components.
If defrost timer works but frost keeps forming check while the compressor shuts if the heaters are working, check continuity of the heaters.
So try this test using a multi-meter on the defrost timer and the thermostat and make your observations so that we come to the solution.

Please check the link below for tips to remove the panels/parts: http://www.espares.co.uk/advice/fridges-and-freezers/a/2

Oct 06, 2011 | Kenmore 24.8 cu. ft. TRIO Bottom Freezer...

1 Answer

Kenmore refrigerator Model 253-68232800 will not keep food cold in fridge and frost build up in freezer.


Top of Form

If there is no cooling at all on the fridge section but the freezer works then it is confirmed that the compressor and gas pressure is OK. Now shut off the fridge and leave it powered off while you clean and check the evaporator for frost. If frost is seen it is a good indication as the compressor is working with sufficient gas within.
Now after about 6 hours plug in the fridge to start. Observe cooling to happen in about one hour and ice to from under three hours.
Earlier make sure that the thermostat was set to normal mode for freezer and fridge.
However if ice forms in the freezer then observe the fridge for about 24 hours for cooling to continue and the fridge to cut off . If not the auto defrost timer, or the thermostat must be checked. Frost formation without defrosting could block the air flow and so shut the air passage to the fridge. Also the blower fan must work and if this is not working then the fan can be faulty. Also a fault on the control unit is a suspect to non functioning of any one of these components.
If defrost timer works but frost keeps forming check while the compressor shuts if the heaters are working, check continuity of the heaters.
So try this test using a multi-meter on the defrost timer and the thermostat and make your observations so that we come to the solution.

Please check the link below for tips to remove the panels/parts:

http://www.espares.co.uk/advice/fridges-and-freezers/a/2

Sep 14, 2011 | Kenmore 64722 Top Freezer Refrigerator

1 Answer

KENMORE REFRIGATOR FREEZER THE FREEZER WORKS FINE THE REFRIGATOR IS WARM


If there is no cooling at all on the fridge section but the freezer works then it is confirmed that the compressor and gas pressure is OK. Now shut off the fridge and leave it powered off while you clean and check the evaporator for frost. If frost is seen it is a good indication as the compressor is working with sufficient gas within.
Now after about 6 hours plug in the fridge to start. Observe cooling to happen in about one hour and ice to from under three hours.
Earlier make sure that the thermostat was set to normal mode for freezer and fridge.
However if ice forms in the freezer then observe the fridge for about 24 hours for cooling to continue and the fridge to cut off . If not the auto defrost timer, or the thermostat must be checked. Frost formation without defrosting could block the air flow and so shut the air passage to the fridge. Also the blower fan must work and if this is not working then the fan can be faulty. Also a fault on the control unit is a suspect to non functioning of any one of these components.
If defrost timer works but frost keeps forming check while the compressor shuts if the heaters are working, check continuity of the heaters.
So try this test using a multi-meter on the defrost timer and the thermostat and make your observations so that we come to the solution.

Please check the link below for tips to remove the panels/parts:

http://www.espares.co.uk/advice/fridges-and-freezers/a/2

Jul 19, 2011 | Kenmore 64802 Top Freezer Refrigerator

1 Answer

My refrigerator is a side by side kenmore and the freezer over freezes and too much ice build up at the bottom and some tomes the refrigerator side is not as cold as it should be.



Since the fridge has cooling the compressor /gas pressure is good.It is possible that the frost has blocked the cool air flow from the freezer to the fridge area.
To confirm shut off the fridge, Now after about 6 hours plug in the fridge to start. Observe cooling to happen in about one hour and ice to from under three hours.
Earlier make sure that the thermostat was set to normal mode for freezer and fridge. However if Ice forms then observe the fridge for about 24 hours for cooling to continue and the fridge to cut off . If not the auto defrost timer, or the thermostat must be checked.
If defrost timer works but frost keeps forming check while the compressor shuts if the heaters are working, check continuity of the heaters.
So try this test from the outside and make your observations so that we come to the solution. The defrost timer is located at the bottom, check the connections to the heaters and the thermostat.

Jul 07, 2011 | Refrigerators

1 Answer

Freezer keeps frosting over


There are three likely suspects: The defrost heater assembly - http://www.repairclinic.com/PartDetail/Defrost-Heater-Assembly/2188175/452192
the defrost thermostat - http://www.repairclinic.com/PartDetail/Defrost-Thermostat/WR50X10068/1170024
and the defrost timer - http://www.repairclinic.com/PartDetail/Defrost-Timer/482493/3348

The first link (defrost heater assembly has a video you should watch to test the circuit

Jun 10, 2011 | Kenmore 73502 / 73504 / 73509 Bottom...

2 Answers

The bottom freezer keeps icing up at the intake which stops the fan from circulating the cold air up to the top thereby giving no coldness in the top


The problem is with the defrosting system. Likely one of three components: the defrost timer, the defrost thermostat, or the defrost heating element. In my case, it was the thermostat. But first check out the timer since it is easily accessible under the front of the freezer. A red shaft sticks out. It has a notch in it, so make a mark on the housing, lined up with the notch, and check over a few hours to make sure it is turning. If not, you need to replace it. If it turns OK, turn off the power and remove it. Check the resistance between contacts 1-4 while rotating the shaft manually. It should read zero ohms for most of the rotation, then be an open circuit for the rest of the rotation. Now check the resistance between contacts 1-2 during rotation. Most of the rotation, it should be an open circuit, then zero ohms for a small part of the rotation. If it fails this test, replace it. If it passes, then the problem is most likely the thermostat. You need to turn off the power and remove the drawers and drawer rails of the freezer, then remove the back panel. Defrost, if you haven't done that already, and remove the thermostat. You can test it (see below), but I would suggest just ordering a new one and replacing since this is likely the culprit if the defrost timer is OK. If you want to test it, check its resistance at room temp (should be an open circuit), then stick in a a working freezer for an hour or so, and test it immediately after pulling it out of the freezer (now should have very little resistance). If it is an open circuit when cold, no power can get to the defrost heating element! GOOD LUCK

Sep 14, 2009 | Kenmore Elite 22.4 cu. ft. Bottom Freezer...

1 Answer

Kenmore 596.72913200 Refrigerator is Warm,freezer not freezing


The frost on the back wall of the freezer with a new timer installed indicates that the problem is beyond the timer in the defrost circuit. In this circuit you have a defrost heater and a defrost thermostat. One of those two is your problem.

If you have an ohm meter available and have the knowledge how to use it you can access the heaters by removing the back panel wall of the freezer section. Disconnect the heaters from the circuit and read the meter for continuity. If you read Ohms through the heater(s) your problem is in the thermostat.

Jun 06, 2008 | Kenmore 73502 / 73504 / 73509 Bottom...

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