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Lg Refigerator won't cool


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10 replies to this topic

#1 spelunk73

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Posted 28 June 2010 - 04:32 PM

The freezer side is working fine. The refrigerato side will not cool at all. The fan motor on the freezer side is running. Not sure what the problem is. PLEASE HELP!!

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#2 RegUS_PatOff

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Posted 28 June 2010 - 04:48 PM

You may have to take a look at the frost pattern on the Freezer Evaporator 
to see if it's air-clogged ...

.

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#3 spelunk73

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Posted 28 June 2010 - 05:09 PM

where is this located at? Is it located in the rear of the freezer? And what do you mean by the term air-clogged? thanks for your help

#4 RegUS_PatOff

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Posted 28 June 2010 - 05:56 PM

[user=68216]spelunk73[/user] wrote:

where is this located at? Is it located in the rear of the freezer? And what do you mean by the term air-clogged? thanks for your help

yes ...

If the Fan can't blow air through it, it can't cool the Fridge ..

.

one of my video productions: “Easter Seals: Walk With Me”

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#5 spelunk73

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Posted 28 June 2010 - 07:23 PM

all apears to be normal here. The door to the duct assembly appears to be stuck closed. I was able to open the door with very little force. What would cause this - do i need to replace the duct assembly or could this be electronic? thanks again for the help.

#6 RegUS_PatOff

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Posted 28 June 2010 - 08:20 PM

I can't find the service manual for that model, but it may be similar to another model.

It looks like there may be a "Test Switch" on the Main Board, between the small copper coil and the 40 pin chip.

Pressing it once may open the Damper.

Pressing it twice may close the Damper.

 

.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
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#7 john63

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Posted 28 June 2010 - 08:31 PM

Post the SERIAL NUMBER.

This will be a *huge* help to identify fault (and at least help rule-out other possible causes).

To eliminate:

Musty odor

L-O-N-G cycle times

Dingy/yellowing whites

Suds error message

Slow spin speeds

Intermittent water leaks (from rear of washer)

And other annoying symptoms which vary brand-to brand.

Read below:

The *correct* amount of HE (High Efficiency) detergent that should be used in any front load or agitatorless top load washer with tub sizes 3.0 cu ft and larger is as follows:

HE: (2) Tablespoons Per Wash Load

HE 2X: (1) Tablespoon

HE 3X: (1) Teaspoon

Perform a TUB CLEAN CYCLE every (4) months.

Use: "Tide Washing Machine Cleaner"

#8 spelunk73

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Posted 29 June 2010 - 03:17 AM

serial nember is 806MRHR00753

I will check for test switch. Thanks again for your help

 


#9 spelunk73

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Posted 29 June 2010 - 04:20 PM

there is a test button located on the circuit board. im not sure in what order it tests each funtion, but it does appear to force it to perform each funtion. can you tell me which one I should be looking for. After you press the button, it will beep so many time and repeat this pattern 3 times. And again thanks for the help

 


#10 john63

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Posted 29 June 2010 - 07:00 PM

Replace the MAIN BOARD.

On the LG refrigerator model: LSC27910TT with serial numbers ranging from:

804MR--through--806MR

The original MAIN BOARD p/n: 6871JB1410M should be replaced with a new

MAIN BOARD p/n: 6871JB1410N.

In addition---both TEMPERATURE SENSORS (THERMISTORS) should be "pulled" from their original installed position and attached to the sensor cover. An adjustment of about 1/4 inch. This allows the TEMPERATURE SENSORS (one each for the refrig & freezer compartments) to be more accurate in measuring temperature.

Some TEMPERATURE SENSORS were too far imbedded within the insulation material used for the entire refrigerator box/cabinet during manufacturing.

Simply snapping the sensor cage-like covers off---and gently pulling the TEMPERATURE SENSORS out from the cured foam-type insulation will allow for more accurate temperature feedback to the MAIN BOARD (also revised).

 

To eliminate:

Musty odor

L-O-N-G cycle times

Dingy/yellowing whites

Suds error message

Slow spin speeds

Intermittent water leaks (from rear of washer)

And other annoying symptoms which vary brand-to brand.

Read below:

The *correct* amount of HE (High Efficiency) detergent that should be used in any front load or agitatorless top load washer with tub sizes 3.0 cu ft and larger is as follows:

HE: (2) Tablespoons Per Wash Load

HE 2X: (1) Tablespoon

HE 3X: (1) Teaspoon

Perform a TUB CLEAN CYCLE every (4) months.

Use: "Tide Washing Machine Cleaner"

#11 Samurai Appliance Repair Man

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Posted 29 June 2010 - 07:48 PM

Part link for main control board==> Click




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