Question about Kenmore 73502 / 73504 / 73509 Bottom Freezer Refrigerator

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Kenmore refrigerator PTC relay for compressor

I help to connect the replacement PTC relay for the compressor.  There are blade terminals numbered 1 to 4 on the front of the relay.  What color wires go where?  I did not remove the old one, otherwise I would have labeled the wires.

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Re: Kenmore refrigerator PTC relay for compressor

This is for a Kenmore PTC relay that I just pulled from my fridge. It dosn't have an ice maker. Hope this helps.

Pin 1 = White
Pin 4 = Blue
Gold Pin = Red

Posted on Nov 05, 2008

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Re: Kenmore refrigerator PTC relay for compressor

Pin 1 is neutral
Pin 2 is linked internally and goes to one side of the capacitor.

Pin 3 goes to the other capacitor wire.

Posted on Sep 29, 2009

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Refrigerator running and not getting cold

you may hear the condensor fan in the rear area and evaporator fan in the freezer compartment,but the compressor is not running due to a bad ptc overload/relay on the compressor body,unplug the unit,then on the left side of the compressor in the lower back side is the ptc,unplug it off the compressor and get a replacement,this is what helps start and operate the compressor

Oct 25, 2012 | Kenmore Refrigerators

1 Answer

Vinotemp not staying cool, it's set at 54 degrees, but it's at 82 degrees

Step 1:

It's most likely the PTC (Positive Temperature Compensated) start relay that turns the compressor on and off. The manufacturer has replaced part number P6R8MC with part number 6R8MG for this PTC start relay. Order part number 6R8MG, it cost less than $20.

First, unplug the wine cooler and take off the back panel. The back panel is held into place with several philips head screws.

Step 2:

Locate the compressor. You'll find the compressor in the bottom left corner of the VT-60 as viewed from the back. You will see copper tubes coming out of the compressor. These tubes carry the compressed refrigerant to the evaporator assembly. Be careful not to crimp or damage the copper tubing.

Step 3:

Find the black plastic cover to the left of the compressor. This cover is held into place with one philips head screw. Remove the screw and remove the cover to find the PTC start relay.

Step 4:

The replay is connected to the compressor by a single blade connector and two pins which protrude from the compressor. Remove the blade connector and pull the PTC relay to the left, sliding it off the pins attached to the compressor.

Step 5:

Slide the relay on the connector pins, reattach the blade connector, reattach the black pastic cover over the relay, reattach the back panel onto the VT-60 and you're done.

Sep 09, 2011 | VinoTemp VT-60 Wine Cooler

1 Answer

Refrigerator not cooling ? Rridfe makinbg clicking noice ?

You did not include a model number so this is a generic response that hopefully is of some assistance. The clicking noise your hearing is the compressor cycling trying to start.
Reasons it may do this:
1. Brief power outtage of less than 5 minutes. (Unplug and wait 30 minutes if so)
2. Compressor not starting at all (causes)
a. PTC Relay failure
b. Run capacitor failure
c. Locked compressor rotor (I.e failed compressor)
d. Heated terminals or wiring problems near the compressor

A technician would do the following
1. Read terminals R & S to terminal C on the compressor (winding continuity checks)
2. Read terminals R and S to the case of the compressor (checks for internal compressor short)
3. If the above tests pass he or she would replace the PTC relay, Kilxon thermal overload & the run capacitor. If the compressor started repairs would be complete at this time. If not see step 4.
4. Perform and amperage check comparing the Locked Rotor Amperage (LRA_ amperage on the compressor label to the actual amperage reading. If it fails this test the compressor has to be replaced.

These are the basic steps for an AC voltage compressor. Should your unit have a DC compressor the steps are slightly different.

Thanks for choosing FixYa,

Aug 15, 2011 | Daewoo Refrigerators

1 Answer

I replaced the relay overload on my kitchenaid refrigerator but the compressor still wont come on woke up in the morning fridge was warm i checked it compressor was not on it was very hot i took off the...

There are some checks that you should perform.
First remove the PTC relay and thermal overload.
Next do a resistance test of the 3 compressor terminals that are labeled as follows
C = Common
R = Run
S = Start

Read Each of the 3 terminals to the case of the compressor. NO grounds are allowed. Then read C to R and C to S. You must read resistance.
Last test is an amperage test with the PTC / Overload connected. You look on the compressor LABEL for the letters LRA and note that number that will be somewhere between 13.8 and 21.3 amps. You then measure the amperage on the power cord... or near the compressor. If the number of amps read is equal to or greater than the LRA (Locked Rotor Amperage) then the compressor rotor is infact locked and the compressor will have to be replaced. If it is trying to start and your sure the rotor is turning but it is not running at full speed you may have a bad run capacitor. Since you installed the 3 n 1 device I doubt you have a capacitor problem.

Thanks for chosing FixYa,

Jun 22, 2011 | Refrigerators

1 Answer

The refrigerator worked, but when unpluged and moved the compressor no longer runs. Is there a reset button on them?

no there is reset,but,the ptc overload relay plugged into the compressor is bad,purchase a new replacement ptc overload relay and plug in into the compressor and it will again cool properly

Apr 12, 2011 | Kenmore Side by Side Refrigerator

2 Answers

My compressor keeps clicking on & off, and isn't cooling any longer

There is a start-up capacitor beside the compressor.When this capacitor fails, the compressor keeps clicking on /off.The capacitor is not very expensive.It costs near to $25.But if replacing the capacitor is not helping, then its faulty compressor causing this.The compressor is out of refrigerant gas and its getting short internally.You will have to get the compressor replaced.If replacing the capacitor not helped.The parts like startup capacitor and compressor can be bought from online sites like or from sears parts direct site.----------- This will help.Thanks.Helpmech.

Mar 27, 2011 | Whirlpool 25.6 cu. ft. Side-by-Side...

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Power off i.e unplugged
Open the back
Remove retaining clip on wiring side of compressor plastic cover.
NOTE wiring connections to terminals on the OLD relay. 1, 2 4 4 ect... make a simple wite color to terminal number sketch.
PULL off PTC relay WITH terminals by pulling HORIZONTALLY (Usually to the left / 9 O'clock position)
NOTE the thermal overload comes off WITH the PTC relay.
Remove wire from Thermal overload terminal and transfer the thermal overload to the new PTC relay.
Slide NEW PTC relay onto compressor terminals
Transfer remaining wires from OLD PTC to the correct terminal on the new PTC relay.

TEST compressor start before installing cover... PLUG in unit

After the test unplug the unit... reinstall the plastic cover and wire clip.

Reinstall back panel

Return unit to service.

Thanks for choosing FixYa


NOTE the thermal overload will s akl

Sep 19, 2010 | Frigidaire Side by Side 26.0 Cubic Foot...

1 Answer

MY FRIDGE STOP WORKING AND THE COMPERSSOR IS VERY HOT. What can be wrong with it it is only 2 years old

Usually when a compresso that is not that old gets hot the problem is with one of 3 components

1. The PTC Relay PN P6R8MC

2. Thermal overload PN 265RFBYY
one of many sources:
3. Loose wiring or terminals
4. Worst case the compressor itself (5 Year carry in warranty!)

Items 1 and 2 above should be changed at the same time. Usually when one fails it causes the 2nd one to fail.

Before you go ordering parts.. just unplug the unit for about 45 minutes. Sometimes if there is a brief power outtage (less than 3 mins) the unit stops and the coolant has not equalized. The compressor keeps trying to start keeping the pressure up but yet the compressor does not start normally. The compressor gets hot and the thermal overload causes the unit to cycle on about every 5 minutes. Over an extended time of cycling the thermal overload will fail. After 45 minutes plug the unit in and see if it starts

If you change the PTC Relay you must change the KliXon thermal overload at the same time. Most LOCAL Appliance part supply stores will have both of these parts in stock. Use the part numbers above and walk in with the parts in hand.

IF you decide to change them your self FIRST make yourself a simple wiring diagram
I.e Orange to terminal ___
Blue to terminal ____

Then remove the parts by opening the plastic cover on the side of the compressor and then pull off the PTC and Thermal overload HORIZONTALLY. Obtain the replacement parts and reintall after inspecting the compressor terminals. Clean as necessary by scraping with a knife blade.

If after changing these two parts the compressor still does not start you may very well have a warranty carry in service compressor change. I seriously doubt that the compressor has failed but it does rarely happen.

This is the Magic Chef support website for parts (linked page) and warranty (top of linked page)

Thanks for choosing FixYa.


Sep 17, 2010 | Magic Chef MCBR360S Stainless Steel...

1 Answer

Kenmore side by side refrigerator is not cooling or freezing

Sure sounds like a PTC relay bad. Take the relay off and shake it to see if you can hear a rattling sound.

The clicking sound is a relay called PTC relay. You need to replace it. First be sure to unplug frig. Remove the cardboard cover that covers most backs of the frig units. Remove the plastic cover that is on the side of compressor. It is held on with a metal clip. Now you should be able to see the relay pry the relay straight off. note the wiring and position of relay. Only three prongs on compressor. Go to a parts house for appliance's and with your make and model number should be able to get a new one. Let me know if you need any more help. ken

Feb 02, 2009 | Kenmore 53642 / 53644 Side by Side...

1 Answer

PTC relay on compressor

Try to find the "secret" wiring diagram.  Almost all refrigerators have a hidden paper wiring diagram.  It is usually tucked into a slot under the refrig, behind the front grill, or otherwise on the inside of the lower rear cardboard fan cover, or sometimes inside the back area near the fan.  While you're in there, it's a good practice to clean the coils.

Oct 19, 2007 | Kenmore 73502 / 73504 / 73509 Bottom...

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