Question about Kenmore 57029 Side by Side Refrigerator

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Frozen evaporator From what I can tell looking at the wiring diagram this unit initiates defrost with a defrost timer. I can manually initiate defrost by following the instructions on the back of the diagram, but this appears to be the only way to defrost this freezer. If left alone...the evaporator completely freezes up and the defrost tray turns into a solid block of ice. That's when everything in the freezer and fridge begin to melt (go bad). All of the wiring has good connections (checked by physically wiggling them). The timer is $77 and I really can't afford to waste any money. I'm looking for some validation regarding what I believe to be the cause of the concern. Any help?

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If you can initiate the defrost cycle my manually turning the knob then your problem is with the defrost timer. $77 seems unusually high...try googling appliance parts, there are many online stores that offer discounted parts.

Posted on Jun 22, 2009

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1 Answer

Need a wiring digram for a pargon5x455 defroist timer


5x455 is WW Grainger number for 240Volt time initiated - time terminated Paragon 8045-20 timer.
Open following links to identify timer and download wiring diagram:

http://www.grainger.com/Grainger/PARAGON-Time-InitiatedTime-Terminated-Defrost-5X454?Pid=search
http://waterheatertimer.org/Paragon-timers-and-manuals.html#8045

Aug 21, 2011 | Paragon 8145-20 Defrost Timer

Tip

How to repair a defrost system.


Is there ice/frost build up at the rear inside of the freezer? (If not go to the evaporator fan). You are having a problem is with your defrost system.
This is going to be one of three problems with your refrigerator, First 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 hairdryer 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 GE defrost heater looks like:
7cb1887.jpg 
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:
bf0b9e7.jpg
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:7eb258e.jpg 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:7b9b6c8.pngMike

on Dec 02, 2009 | Refrigerators

1 Answer

I'm looking for a control wiring diagram for this set up; The condenser is on the roof with a paragon 8145-20 in it. I want to control the defrost cycle of the walk in freezer that is downstairs. The...


Open following link to see wiring diagram and manual for Paragon defrost timers:
8145-20 is 240V time-initiated, pressure or temperature terminated, with back-up time termination.
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 11, 2011 | Paragon 8145-20 Defrost Timer

1 Answer

Refrigeration ynit not going into defrost, I need a electrical wiring diagram to help me troubleshoot this one. Where can I get that?


See defrost timers and wiring diagrams and manuals
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

You posted under 8145-20

8145-20 is time initiated, temperature or pressure terminated.
Defrost timer training pdf

The 8145-20 timer:
Power leads connect to terminals 1 and N.
For 120Volt circuit: L is black hot wire to terminal 1, N is white neutral wire to terminal N
For 240Volt circuit: L1 and L2 are the hot leads from 240V breaker

geno_3245_192.jpg
'NO' means normally open, so terminal 3 turns ON only when timer turns on (that is 'time initiated')
So the hot gas valve for defrosting is connected to terminal 3 and turns ON when timer turns ON.
The other wire from hot gas valve connects to terminal N where it completes the circuit

'NC' means normally closed, so terminal 4 is ON at all times EXCEPT when timer turns ON.
That means fan is ON all the time, except when time initiated sequence begins, and then fan turns OFF while hot gas valve is defrosting unit.
The other wire from fan connects to terminal N where it completes the circuit

The cycle limit switch is connected to terminal X.
This is the switch that terminates the defrost sequence and turns timer OFF
Other wire from cycle limit switch connects to terminal N where it completes the circuit

I also suggest you ask a paid fixya experts who can provide additional information by phone.
Paid experts will not answer your question unless they know the answer, and if their answer is not complete, then fixya offers money back guarantee.

Dec 15, 2010 | Paragon 8145-20 Defrost Timer

1 Answer

I have a paragon 8145-20 defrost timer. do you wire the compressor to the timer? I cant seem to find a wiring diagram on how to wire this correctly


Link below has wiring diagrams and wiring manuals for 240V 8145-20
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

I am not expert installing defrost timers.
According to information from Paragon, 8145 is for hot gas defrosting. 8140 series are time initiated, and pressure-or-temperature terminated.
Wiring diagram does not show compressor wired to timer.

The cycle works like this:
Timer is running but defrost is not switched ON.
Fan is ON.
Timer switches ON and activates defrost cycle.
Fan turns OFF. Hot gas valve turns ON for defrosting.
Cycle limit switch is temperature or pressure sensitive.
Cycle limit switch reaches trip point, timer switches OFF.
Hot gas valve turns OFF. Fan turns ON.
So fan is off during defrost cycle.
Hot gas valve turns ON when timer switches ON.
Timer is switched OFF by pressure-or-temperature limit switch.

Dec 09, 2010 | Paragon 8145-20 Defrost Timer

1 Answer

I have a bad Paragon 8145-20 its Sunday all I have in stock is a Paragon 8045-20. I know voltage is the same. Will the 8045-20 work? What is the difference betweentime out and temperature out. If the...


See wiring diagrams and manuals at following link:
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

8145-20 is 240V time initiated, pressure or temperature terminated with back-up time termination.
8045-20 is 240V time initiated, time terminated.

So 8145-20 has pressure or temperature limit switch that connects to terminal X that turns timer off, and ends defrost cycle. This timer is for hot gas defroster that has pressure/temperature limits. Check and see what the back-up time termination is set at on 8145-20. Look at small inner dial.

The 8045-20 timer does not use pressure/temperature limit switch, and instead you have to estimate length of time you want defrost cycle to run, and set inner dial to that time. Use same time as back-up time termination on 8145-20. Of course the pressure/temperature limits would not be exact and defrost cycle might not work correctly.

Here's the change-over wiring from 8145-20 to 8045-20.
There are other wiring variants depending on equipment.
240V hot wires from breaker box are L1 and L2
a) 8145-20 L1 is at terminal 1 > move L1 to terminal N on 8045-20
8145-20 L2 is at terminal N > move L2 to terminal X on 8045-20

b) 8145-20 hot gas defroster is at NO terminal 3 > move defroster to NO terminal 3 on 8045-20
Complete the 240 circuit to defroster by connecting to L2 at terminal X

c) 8145-20 refrigeration is at NC terminal 4 > move refrigeration to NC terminal 4 on 8045-20
Complete the 240 circuit to refrigeration by connecting to L2 at terminal X

Sep 12, 2010 | Paragon 8145-20 Defrost Timer

1 Answer

I have a kenmore frost free freezer. the model number is 253.26432100. please tell me how to initiate a defrost check on this type of freezer. it has a digital thermostat and no manual timer that you can...


Hi.

You cannot manually initiate a defrost check on this unit because this is an automatic self defrost cycling fridge/freezer.

There is no way to start a manual defrost check. Manual defrost can be done disconnecting the power plug from main overnight. In that case check the drain pan located at the bottom of the unit before defrost is done.

If there is ice buildup on condenser coil, then defrost system is malfunctioning.

In that case the parts in the defrost system must be tested.

Here temporary link to user manual.

If that does not work, use this link.

Here link to part list and diagram.

Regards.

Mar 10, 2010 | Kitchen Ranges

1 Answer

I have a kenmore side by side refrigerator. the


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:
6ddaaf7.jpg  
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:
4462625.jpg 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:
f218caf.jpg 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:
a4183d8.png 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

Nov 20, 2009 | Kenmore Refrigerators

1 Answer

The freezer element build up with ice and the fridge will not cool enough, i already replaced the heating element below the freezer cooling unit.


Hi, With the information you supplied I’m going to assume there is an ice build up at the rear 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:
6ddaaf7.jpg  
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:
4462625.jpg 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:
f218caf.jpg 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:
a4183d8.png 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

Oct 17, 2009 | Jenn-Air JCD2389G Side by Side...

1 Answer

Paragon 8145-20 defrost timer


I am not professional at commercial refrigeration, and can't answer your question directly.
However, you can see 8145-20 240V defrost timer wiring diagrams and manuals on following link.
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

8145 timer is time initiated, and pressure/temperature terminated, with back-up time termination.

Jun 28, 2009 | Paragon 8145-20 Defrost Timer

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