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 Posted: Mon Sep 27th, 2010 09:03 pm
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Bratton
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Have replaced the heater defrost assembly. Still freezes up. Waiting for a new conductor as I didn't know the old one could be blown (open) Is this the problem? Don't know what else to do!

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 Posted: Mon Sep 27th, 2010 10:13 pm
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Bratton wrote: Have replaced the heater defrost assembly....

was it bad ?

is the Fuse good ?

did you do any electrical tests ?

 

 



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 Posted: Mon Sep 27th, 2010 10:29 pm
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Bratton
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I am assuming the heater defrost assembly is working as all runs normally for a few days.

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 Posted: Mon Sep 27th, 2010 10:29 pm
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Bratton
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no electrical tests

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 Posted: Mon Sep 27th, 2010 11:33 pm
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john63

 

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As detailed as possible--explain the original problem that you were having with the refrigerator.

Any error message displayed?

Refrigerator too warm but freezer somewhat okay?

Icemaker stopped functioning?

Heavy frost accumulation on *everything* inside the freezer,etc.

 

Post the SERIAL NUMBER* (located in the fresh food compartment on the side wall)

Also---check the MODEL NUMBER again. There are two add'l letters at the end of the number---some have additional numbers as well (such as: 01---02---03 etc)

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 Posted: Tue Sep 28th, 2010 02:51 am
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john63

 

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Okay--got your pm.

LG Refrigerator

Model: LFC25760ST

Serial: 608KREL01412

Symptom: Food compartment too warm / Freezer "okay"

                 Also showing an error:  "er/dh"

A few things to consider...

Try replacing the CONTROLLER ASSY (6615JB2005H) which is next to the *evaporator coils* in the freezer.

This is most likely the cause of the *er/dh* error (since you've already replaced the DEFROST HEATING ELEMENT).

If this fails to resolve it---the MAIN BOARD may be at fault.

If you haven't had the *ENERGY UPGRADE" performed yet---this would be a good time to have it done. This involves replacing the MAIN BOARD and the addition of small foam insulation strips at the top of both doors. Free of charge.

Having this "upgrade" also eliminates another known problem in your model refrigerator (by serial number info)---and that would be---potential lightbulb relay failure on the MAIN BOARD. Your model was built in August 2006.

To qualify for this free upgrade, visit:

http://www.lgrefrigeratoroffer.com

 

Last edited on Tue Sep 28th, 2010 02:52 am by john63

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 Posted: Tue Sep 28th, 2010 03:13 am
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A Thousand Apologies...

Your model is *not* one of the affected models for ENERGY UPDATES.

These apply only to "French Door" models *with an in-the-door icemaker / chilled water dispenser assy* on the left-hand door.

Sorry for the confusion...

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 Posted: Tue Sep 28th, 2010 03:29 am
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Bratton
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Very good. Thank you for the info. Have already ordered the controller assembly, should have it tomorrow. Problem with the free upgrades is I bought this fridge used so I don't think I am eligible for them. Will check it out though.

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 Posted: Tue Sep 28th, 2010 03:33 am
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Bratton
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Sure has turned into a pain in the butt! Hope I don't have 2 bad heater defrost assembly's!

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 Posted: Tue Sep 28th, 2010 03:40 am
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Bratton wrote: Sure has turned into a pain in the butt! Hope I don't have 2 bad heater defrost assembly's!

Not impossible but highly unlikely.

If you still have the original defrost heating element---test it with a Volt / Ohm meter.

A simple continuity test (battery current sent from one terminal to the other) will confirm if it's "good" or has "failed".

Keep it as a spare---if the test shows that it is not defective.

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 Posted: Tue Sep 28th, 2010 03:55 am
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Bratton
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Yes, I still have it. Would be nice to have a spare, but for an appliance repair dork as myself. I hope its bad so that I didn't go through all the hassle of replacing a good part!

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 Posted: Tue Sep 28th, 2010 03:57 am
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RegUS_PatOff
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you'd need a meter and know how ro use it

If you have a Harbor Freight Store near you,
they have these meters, w/battery
but sometimes on sale for $ 1.99
if on sale, print sale page and take to store

 

click on picture





click on picture


 

You could also probably use a few of these:

click on picture



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 Posted: Tue Sep 28th, 2010 04:09 am
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Bratton
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I have one. sure I can figure out how to use it. Got the heater element installed, cut the hell out of my fingers on the fins of the unit though!

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 Posted: Tue Sep 28th, 2010 04:30 am
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Bratton wrote: I have one. sure I can figure out how to use it.
 
How to Make Electrical Measurements; how to use a volt-ohm meter; how to measure electricity



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 Posted: Sat Oct 9th, 2010 02:10 am
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Bratton
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Here we go again! Have error message Er dH! Replaced defrost heater assembly! No luck. Got error message again. Coils are all covered in ice again. Replaced conductor, error message is back after about 10 hours. Am sure the coils are icing up again as the fridge temp is rising. WHAT DO I DO NOW! Please help my fellow GURU'S!

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 Posted: Sat Oct 9th, 2010 02:38 am
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did you check/replace this part ?

Defrost Sensor / Fuse

click on picture




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 Posted: Sat Oct 9th, 2010 03:07 am
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Bratton
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Yes replaced that part.

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 Posted: Sat Oct 9th, 2010 04:19 am
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did you test the Defrost Heater and Sensor/Fuse before replacing...

If not, that's a sure way to waste money

May be a bad Controller ..
 
If you have a Harbor Freight Store near you,
they have these meters w/battery
sometimes on sale for $ 1.99
if on sale, print sale page and take to store


click on picture





click on picture


LFC25760ST Service Manual link PM'd



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 Posted: Tue Oct 19th, 2010 12:02 am
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Bratton
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Ok fellow guru's. I'm really not a guru just a truck driver trying to fix a fridge! I STILL have an error message on the display. Er dH. I have replaced the heaater defrost assembly ( lots of blood to clean up from my sliced up fingers from the sharp fins above the heater itself!) Also replaced the conductor. Fridge seems to be working properly as there is no frost buildup on the back of the freezer compartment. Have a digital thermometer in the fridge ( cause the display only has the error message. Pretty constant temp between 38 degrees and 44 degrees. Freezer is @ 0 degrees. Is this the temperature control senser? HELP PLEASE!

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 Posted: Tue Oct 19th, 2010 12:44 am
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Does the Defrost Heater work ?

Does the Evaporator Fan work ?

what's the frost pattern on the Evaporator Coils after the Compressor has been running at least an hour ?

post pictures somewhere http://www.imageshack.us/

then post links here



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