Discuss

Replaced defrost heater--no heat

 in

Refrigerator & Freezer Repair

. "

Hello, I replaced my defrost heater today. The original one was definately bad. I didn't have anything to assist with

..."
 
 
Register | FAQ's | New Posts | Today's Posts | Extras
Appliance Repair Forum > Appliance Repair Help > Refrigerator & Freezer Repair » Replaced defrost heater--no heat

Post New Thread  Reply By reading any content on this site you agree to AppliancePartsPros.com, Inc. disclaimer and Terms of Use.
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 01-17-2011, 05:51 PM
Junior Member
 
Join Date: Jan 2011
Posts: 2
curtis lowe is on a distinguished road
Default Replaced defrost heater--no heat
Model Number: 36350227000   Brand: Kenmore   Age: 5 - 10 years   

Appliance Parts from AppliancePartPros.com


Hello,

I replaced my defrost heater today. The original one was definately bad.
I didn't have anything to assist with defrosting the ice on the evaporator coil, so I couldn't locate the defrost timer to advance it. My question is, if I understand correctly, the timer runs constantly and would continue advancing even if the heater is bad. Therefore, when I put my new heater in and it doesn't come on, it may be that the timer just hasn't advanced far enough to energize it. Am I correct or am I gonna have to melt that ice and test the timer and thermostat?

Thanks for your help.


Related Models
Kenmore 36350227000 REFRIGERATOR
Kenmore 36350232000 REFRIGERATOR
Kenmore 36350237000 REFRIGERATOR
Kenmore 36350242000 REFRIGERATOR
Kenmore 36350247000 REFRIGERATOR
Kenmore 36350622000 REFRIGERATOR
Kenmore 36350627000 REFRIGERATOR
Kenmore 36357552790 SIDE BY SIDE
Kenmore 36357552791 SIDE BY SIDE
Kenmore 36357557790 SIDE BY SIDE
Kenmore 36357557791 SIDE BY SIDE
Kenmore 36358042890 REFRIGERATOR
Kenmore 36358042891 REFRIGERATOR
Kenmore 36358042892 REFRIGERATOR
Kenmore 36358042893 REFRIGERATOR
Kenmore 36358042894 REFRIGERATOR
Kenmore 36358042896 REFRIGERATOR
Kenmore 36358042897 REFRIGERATOR
Kenmore 36358047890 REFRIGERATOR
Kenmore 36358047891 REFRIGERATOR
Kenmore 36358047892 REFRIGERATOR
Kenmore 36358047893 REFRIGERATOR
Kenmore 36358047894 REFRIGERATOR
Kenmore 36358047896 REFRIGERATOR
Kenmore 36358047897 REFRIGERATOR
Kenmore 36358062890 REFRIGERATOR
Kenmore 36358062891 REFRIGERATOR
Kenmore 36358062892 REFRIGERATOR
Kenmore 36358062893 REFRIGERATOR
Kenmore 36358062894 REFRIGERATOR
Kenmore 36358062896 REFRIGERATOR
Kenmore 36358062897 REFRIGERATOR
Kenmore 36358067890 REFRIGERATOR
Kenmore 36358067891 REFRIGERATOR
Kenmore 36358067892 REFRIGERATOR
Kenmore 36358067893 REFRIGERATOR
Kenmore 36358067894 REFRIGERATOR
Kenmore 36358067897 REFRIGERATOR
Kenmore 36358072891 SIDE BY SIDE REFRIGERATOR
Kenmore 36358072892 REFRIGERATOR
Kenmore 36358072894 REFRIGERATOR
Kenmore 36358072896 REFRIGERATOR
Kenmore 36358075891 SIDE BY SIDE REFRIGERATOR
Kenmore 36358075892 REFRIGERATOR
Kenmore 36358075894 REFRIGERATOR
Kenmore 36358075896 REFRIGERATOR
Kenmore 36358077891 SIDE BY SIDE REFRIGERATOR
Kenmore 36358077892 REFRIGERATOR
Kenmore 36358077894 REFRIGERATOR
Kenmore 36358077896 REFRIGERATOR
Kenmore 36358092890 REFRIGERATOR
Kenmore 36358092891 REFRIGERATOR
Kenmore 36358092892 REFRIGERATOR
Kenmore 36358095890 REFRIGERATOR
Kenmore 36358095891 REFRIGERATOR
Kenmore 36358095892 REFRIGERATOR
Kenmore 36358097890 REFRIGERATOR
Kenmore 36358097891 REFRIGERATOR
Kenmore 36358097892 REFRIGERATOR
Kenmore 36358251890 REFRIGERATOR
Kenmore 36358251891 REFRIGERATOR
Kenmore 36358251892 REFRIGERATOR
Kenmore 36358251893 REFRIGERATOR
Kenmore 36358251894 REFRIGERATOR
Kenmore 36358252890 REFRIGERATOR
Kenmore 36358252891 REFRIGERATOR
Kenmore 36358252892 REFRIGERATOR
Kenmore 36358252893 REFRIGERATOR
Kenmore 36358252894 REFRIGERATOR
Kenmore 36358252896 REFRIGERATOR
Kenmore 36358257890 REFRIGERATOR
Kenmore 36358257891 REFRIGERATOR
Kenmore 36358257892 REFRIGERATOR
Kenmore 36358257893 REFRIGERATOR
Kenmore 36358257894 REFRIGERATOR
Kenmore 36358257896 REFRIGERATOR
Kenmore 36358261890 REFRIGERATOR
Kenmore 36358261891 REFRIGERATOR
Kenmore 36358261894 REFRIGERATOR
Kenmore 36358261896 REFRIGERATOR
Kenmore 36358261897 REFRIGERATOR
Kenmore 36358262890 REFRIGERATOR
Kenmore 36358262891 REFRIGERATOR
Kenmore 36358262894 REFRIGERATOR
Kenmore 36358262896 REFRIGERATOR
Kenmore 36358262897 REFRIGERATOR
Kenmore 36358267890 REFRIGERATOR
Kenmore 36358267891 REFRIGERATOR
Kenmore 36358267894 REFRIGERATOR
Kenmore 36358267896 REFRIGERATOR
Kenmore 36358267897 REFRIGERATOR
Kenmore 36358272890 REFRIGERATOR
Kenmore 36358272891 REFRIGERATOR
Kenmore 36358272892 REFRIGERATOR
Kenmore 36358272893 REFRIGERATOR
Kenmore 36358272894 REFRIGERATOR
Kenmore 36358272896 REFRIGERATOR
Kenmore 36358275890 REFRIGERATOR
Kenmore 36358275891 REFRIGERATOR
Kenmore 36358275892 REFRIGERATOR
Kenmore 36358275893 REFRIGERATOR
Kenmore 36358275894 REFRIGERATOR
Kenmore 36358275896 REFRIGERATOR
Kenmore 36358277890 REFRIGERATOR
Kenmore 36358277891 REFRIGERATOR
Kenmore 36358277892 REFRIGERATOR
Kenmore 36358277893 REFRIGERATOR
Kenmore 36358277894 REFRIGERATOR
Kenmore 36358277896 REFRIGERATOR
Kenmore 36358472890 REFRIGERATOR
Kenmore 36358472891 REFRIGERATOR
Kenmore 36358472892 REFRIGERATOR
Kenmore 36358472893 REFRIGERATOR
Kenmore 36358472894 REFRIGERATOR
Kenmore 36358472896 REFRIGERATOR
Kenmore 36358472897 REFRIGERATOR
Kenmore 36358475890 REFRIGERATOR
Kenmore 36358475891 REFRIGERATOR
Kenmore 36358475892 REFRIGERATOR
Kenmore 36358475894 REFRIGERATOR
Reply With Quote
See inside of your appliance - diagrams and part photos for virtually every model.

powered by AppliancePartsPros.com
 
  #2 (permalink)  
Old 01-18-2011, 06:04 AM
Senior Expert
APP Volunteer
 
Join Date: Feb 2008
Posts: 17,154
denman is a glorious beacon of light
Default

Here are your parts
Replacement parts for KENMORE 36350227000 | AppliancePartsPros.com

My question is, if I understand correctly, the timer runs constantly and would continue advancing even if the heater is bad.
It is actually a GE unit so getting tech info on it is difficult so cannot tell how the defrost timer is hooked up.. GE likes to keep everything a secret.
You are correct that the heater will not stop the timer.
The timer can be hooked up in one of two ways.
1. It runs whenever the fridge is plugged in.
2. It runs when ever the compressor is running.

Therefore, when I put my new heater in and it doesn't come on, it may be that the timer just hasn't advanced far enough to energize it. Am I correct
Yes you are correct.

or am I gonna have to melt that ice and test the timer and thermostat?
I would check the defrost operation first and find out if it is now working.
If it is then I would do a manual defrost using a hair dryer and sopping up the water. Since the coils are probably iced up solid and auto defrost would probably take a couple cycles to clear the coils.
Would not be a bad idea to flush the drain system with a 10% bleach solution just to clean it out and kill any crud growing in it. Just be careful to not overflow your drip tray.
Do not try to chip the ice off.

Your defrost timer is probably in the control console. There is usually a hole in the cover to let you rotate the timer cam with a screwdriver.
If not it will be under the unit either at the front or the back.

First remove the evaporator cover in the freezer so you can see the coils.
Do not let them de-ice.
If they are heavily iced/frosted over you have a defrost problem.

If yes.
Manually force a defrost cycle by turning the defrost timer cam till the fans and compressor turn off.
Now check the defrost heater to see if it is on.
Be careful you do not want to burn your fingers.
If the heater is on then the timer needs replacing, re: it is probably stalling during it's rotation so is never getting into a defrost cycle.

If not on.
Unplug the unit.
Remove the wire for one side of the heating element from the wiring and measure it for continuity, usually around 20 ohms or so.

If the heater is OK
Remove one wire to the defrost thermostat and measure it, should be 0 ohms when frozen. Note that it opens just above freezing so must be frozen to check it. Also inspect it, if it is bulged at all replace it even if it measures OK.

If both the above are OK then odds are the defrost timer contacts are toast.
Best way to test this is a live test to see if you have 120 volts across the heater/defrost thermostat combo.

If you do not own a meter, I would suggest you purchase a one. You can get a decent digital multimeter for under $20.00. You do not need fancy though it is nice if the leads are a couple feet long.
If it saves ordering one unnecessary part it has paid for itself and you end up owning a useful tool.
Most places will not let you return electrical parts so if you order it, you own it.
A couple things to watch when measuring ohms and continuity
1. Always remove power from the machine otherwise you could blow your meter.
2. Always disconnect at least one side of any device you are checking. This eliminates the possibility of measuring an alternate/parallel circuit path.
3. When checking for closed contacts and continuity use the lowest scale (Usually 200 ohms). Then try higher scales. This scale is 0 to 200 ohms so if the device you are measuring is 300 ohms this scale would show an open circuit which it is not, you are just measuring outside the scale's dynamic range.

There is a good STICKY at the start of this forum about it's use.
__________________
-
Reply With Quote
  #3 (permalink)  
Old 01-18-2011, 04:02 PM
Junior Member
 
Join Date: Jan 2011
Posts: 2
curtis lowe is on a distinguished road
Default

Quote:
Originally Posted by denman View Post
Here are your parts
Replacement parts for KENMORE 36350227000 | AppliancePartsPros.com

My question is, if I understand correctly, the timer runs constantly and would continue advancing even if the heater is bad.
It is actually a GE unit so getting tech info on it is difficult so cannot tell how the defrost timer is hooked up.. GE likes to keep everything a secret.
You are correct that the heater will not stop the timer.
The timer can be hooked up in one of two ways.
1. It runs whenever the fridge is plugged in.
2. It runs when ever the compressor is running.

Therefore, when I put my new heater in and it doesn't come on, it may be that the timer just hasn't advanced far enough to energize it. Am I correct
Yes you are correct.

or am I gonna have to melt that ice and test the timer and thermostat?
I would check the defrost operation first and find out if it is now working.
If it is then I would do a manual defrost using a hair dryer and sopping up the water. Since the coils are probably iced up solid and auto defrost would probably take a couple cycles to clear the coils.
Would not be a bad idea to flush the drain system with a 10% bleach solution just to clean it out and kill any crud growing in it. Just be careful to not overflow your drip tray.
Do not try to chip the ice off.

Your defrost timer is probably in the control console. There is usually a hole in the cover to let you rotate the timer cam with a screwdriver.
If not it will be under the unit either at the front or the back.

First remove the evaporator cover in the freezer so you can see the coils.
Do not let them de-ice.
If they are heavily iced/frosted over you have a defrost problem.

If yes.
Manually force a defrost cycle by turning the defrost timer cam till the fans and compressor turn off.
Now check the defrost heater to see if it is on.
Be careful you do not want to burn your fingers.
If the heater is on then the timer needs replacing, re: it is probably stalling during it's rotation so is never getting into a defrost cycle.

If not on.
Unplug the unit.
Remove the wire for one side of the heating element from the wiring and measure it for continuity, usually around 20 ohms or so.

If the heater is OK
Remove one wire to the defrost thermostat and measure it, should be 0 ohms when frozen. Note that it opens just above freezing so must be frozen to check it. Also inspect it, if it is bulged at all replace it even if it measures OK.

If both the above are OK then odds are the defrost timer contacts are toast.
Best way to test this is a live test to see if you have 120 volts across the heater/defrost thermostat combo.

If you do not own a meter, I would suggest you purchase a one. You can get a decent digital multimeter for under $20.00. You do not need fancy though it is nice if the leads are a couple feet long.
If it saves ordering one unnecessary part it has paid for itself and you end up owning a useful tool.
Most places will not let you return electrical parts so if you order it, you own it.
A couple things to watch when measuring ohms and continuity
1. Always remove power from the machine otherwise you could blow your meter.
2. Always disconnect at least one side of any device you are checking. This eliminates the possibility of measuring an alternate/parallel circuit path.
3. When checking for closed contacts and continuity use the lowest scale (Usually 200 ohms). Then try higher scales. This scale is 0 to 200 ohms so if the device you are measuring is 300 ohms this scale would show an open circuit which it is not, you are just measuring outside the scale's dynamic range.

There is a good STICKY at the start of this forum about it's use.
Hey Denman, Thank you so much for the answers. I'm glad I found this site.

As it turns out the heater worked. The fridge is good as new.
I was a little worried.

Thanks again!
Reply With Quote
See inside of your appliance - diagrams and part photos for virtually every model.

powered by AppliancePartsPros.com
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Replaced Defrost Heater...worked for a while Jerry Choate Refrigerator & Freezer Repair 3 10-25-2009 12:23 PM
Replaced Defrost Heater In Ge S/s Fridge SWKRO Refrigerator & Freezer Repair 17 10-20-2009 06:31 PM
Replaced defrost timer and heater-next? tlb623 Refrigerator & Freezer Repair 6 08-10-2009 09:41 PM
Replaced the heater, thermostat and defrost timer but it's still not right? mandal Refrigerator & Freezer Repair 0 06-04-2009 10:58 AM
I've replaced my defrost heater on my freezer, is it working? mikethevike84 Refrigerator & Freezer Repair 3 04-24-2009 07:47 PM



All times are GMT -7. The time now is 01:27 PM.

The content on this web site is for informational purposes only and is not intended to replace an on-site diagnosis from a qualified appliance service technician. By reading any content on this site you agree to AppliancePartsPros.com , Inc. disclaimer and Terms of Use.
Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17