Question about LG LRBN22514ST Bottom Freezer Refrigerator

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Have a LG M# : lfd22860st with a "DH" code, and I believe that for the defrost heater/cycle. My question is I ohmed out the heater and defrost bi-metal, so is the main PCB board the only thing else it could be and is there a way of checking the defrost cycle though the board?

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Hi Dan, you can do a forced defrost on this unit.the main control board has a little black button that if pressed twice will activate the forced defrost. It will only defrost for 5 min and only if the defrost thermostat and fuse are closed. Hope this helps.

Posted on Nov 24, 2013

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Posted on Jan 02, 2017

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SOURCE: I a LG 22860sw refrigerator ERROR CODE DH

The main Pcb as well as the defrost thermistor are in the circuit as well.
The thermister is attached to the evaporator with wire ties and connects to the roof of the freezer behind the fan assy.

I have seen the thermister connector pull out of the connector at the top of the freezer beacuse the wires were to tight. Remove some of the wire ties and reinstall the connector.

Posted on Jan 17, 2010

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I am getting error code dH.. What is this?


Hi,

Thank you for contacting fixya.com.

DH means defrost heater and refrigerator computer is not sensing the defrost cycle. It is due to a bad defrost sensor located on the evaporator behind the plastic cover in the back of the freezer compartment. You need to replace that.
Also check this link if it helps:-

http://knol.google.com/k/fixing-the-er-dh-code-on-kenmore-elite-trio#

Please get back to us if you have further query else please accept the suggestion.




Jun 02, 2011 | Kenmore 73503 Stainless Steel Bottom...

1 Answer

Problems for Refrig. Kenmore Elite


The Er DH error code indicates the temperature sensor on the evaporator coil did not reach 50 degrees within one hour.
This would indicate the control board did put the refrigerator through a defrost cycle.

This problem could be caused by a defective relay on the control board, a defective defrost heater, a broken wire to the heater, or a stopped up drain on the defrost pan causing ice to form on the evaporator coil.

Before replacing the control board, someone should remove the food from the freezer, remove the freezer drawer, and remove the evaporator cover to expose the evaporator coil, heater, and defrost sensor.
The voltage to the defrost heater should be 120 volts ac.
The defrost heater is part of the evaporator coil and is not replaceable as a separate part.

You can test the operation of the defrost system by pressing "Ultra Ice" and "colder freezer temp" for 3 seconds.
The first time you press and hold the buttons the board will test the compressor, fan, and open the damper.

All displays should be on.


The second time you press and hold the buttons the board will test the compressor, fan, and close the damper.

The third time you press and hold the buttons, the board will turn the compressor and fan off and turn the defrost heater on for around 25 minutes. This would let you know if the defrost system is working.


http://knol.google.com/k/fixing-the-er-dh-code-on-kenmore-elite-trio#

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

May 03, 2010 | Kenmore 73502 / 73504 / 73509 Bottom...

1 Answer

I HAVE AN ERROR CODE dH on my Kenmore Elite bottom


The Er DH error code indicates the temperature sensor on the evaporator coil did not reach 50 degrees within one hour.
This would indicate the control board did put the refrigerator through a defrost cycle.

This problem could be caused by a defective relay on the control board, a defective defrost heater, a broken wire to the heater, or a stopped up drain on the defrost pan causing ice to form on the evaporator coil.

Before replacing the control board, someone should remove the food from the freezer, remove the freezer drawer, and remove the evaporator cover to expose the evaporator coil, heater, and defrost sensor.
The voltage to the defrost heater should be 120 volts ac.
The defrost heater is part of the evaporator coil and is not replaceable as a separate part.

You can test the operation of the defrost system by pressing "Ultra Ice" and "colder freezer temp" for 3 seconds.
The first time you press and hold the buttons the board will test the compressor, fan, and open the damper.

All displays should be on.


The second time you press and hold the buttons the board will test the compressor, fan, and close the damper.

The third time you press and hold the buttons, the board will turn the compressor and fan off and turn the defrost heater on for around 25 minutes. This would let you know if the defrost system is working.


http://knol.google.com/k/fixing-the-er-dh-code-on-kenmore-elite-trio#

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

Apr 14, 2010 | Kenmore 77554 / 77543 Bottom Freezer...

1 Answer

Message ER DH continues to pop up on the door. If


ER =ambient temp sensor failure
DH= defrost heater

Defrost heater, temperature fuse short
circuit, unplugged connector(indicated
4 hour later after trouble)

You is gonna have defrost problemas!

Feb 24, 2010 | LG LRSC-26922 Side by Side Refrigerator

1 Answer

I a LG 22860sw refrigerator ERROR CODE DH


The main Pcb as well as the defrost thermistor are in the circuit as well.
The thermister is attached to the evaporator with wire ties and connects to the roof of the freezer behind the fan assy.

I have seen the thermister connector pull out of the connector at the top of the freezer beacuse the wires were to tight. Remove some of the wire ties and reinstall the connector.

Jan 12, 2010 | LG Refrigerators

1 Answer

LG code ER DH, Defrost Heater or Thermistor?


Check for current flow through the defrost heater. If no current then replace the heater. If heater is OK check thermistor for correct operation. From service manual chart (their words not mine): ER DH is Poor defrosting. Indicates: Even though it is passed 1 hour since then
Defrosting , if Defrosting
sensor is not over 8°
Remarks: Temperature fuse Disconnection,Heater
disconnection, DRAIN Jam,
Poor Relay for Heater

Aug 11, 2009 | LG LFX25960ST Stainless Steel French Door...

2 Answers

Control panel shows "Er dH"


The “er dh” code means a problem with the defrost cycle. It is triggered when the defrost sensor does not reach 46 degrees F within 2 hours of the defrost cycle starting. If indeed the defroster is not working, the evaporator (in the bottom of the fridge in the freezer compartment and behind a plastic cover) will eventually ice up completely, blocking the flow of cold air to the upper compartment. Use a thermometer to check the upper compartment to verify that no or little cool air is reaching it.  If the evaporator is iced up, the defrost cycle is not working. Quick fix to restore operation to the upper compartment: tape over all vent holes in the upper section to keep that cool while you work below. There are about 6-7 vent opens in the back wall and two large one on the floor of upper compartment. Remove freezer door, drawers, slide rails and pull back the plastic cover (2 screws hold it in place, one in the center and one behind the ice maker) at the rear of the freezer section to expose the evaporator. Spray hot water on the ice accumulation on the evaporator (it looks like a radiator) to melt it (remembering to sop up what flows to the drain pan at the rear). The entire operation can be done in about 30 minutes (most time is used for removing ice and sopping up water from the drain pan). All should be ok for 3-4 days depending on humidity before the evaporator ices up again.  In the meantime, order a replacement control board. You can view this by removing a panel w/ 3 screws at the rear left of the refrigerator. This panel controls all refrigerator functions, including defrost. Most likely, the integrated relay for the defrost cycle failed. Swapping out panels is a 10 minute job. Panels cost about $116 incl shipping from repairclinc.com. Shipping is about a week.  You can find a free service manual on line that will help to identify all parts and is particularly useful for removing doors and trays so you can get at the evaporator.  All in all, the customer service is useless. The fridge however is very easy to work on and amazingly simple. The replacement board has a slightly different relay for the defrost heater, so LG may have realized a problem existed with the original. It is also possible that electrical surges damaged the relay.  In any case, 10 minutes and $116 seems pretty minor to have the fridge back to new condition. Good luck.

Jan 22, 2009 | LG LFX25960ST Stainless Steel French Door...

1 Answer

LG Refrigerator Defrost Error ER DH


it the def t-stat, def. thermistor, or def. fuse whatever lg decides to call it this week that is causing your issue

Jun 13, 2008 | Refrigerators

2 Answers

Where is this fuse located on the LG refrigerator is displaying a ER DH code error


Hi. You have an Error Defrost Heater. Its taking too long for the heater sensor to open the circuit during defrost. You normally replace the heater, heater sensor and circuit board(motherboard) located on the back of the refrigerator in this situation. Check your mollex plugs and make sure they are connected tightly at the evaporator coil area. Sometimes they come loose. I reccommend replacing the heater and heater sensor located top right on the evaporator coil. This should take care of the problem. Need parts see me on ebay as user, themackshack. Good luck, Mack

Jan 02, 2008 | LG LRBC22544 Bottom Freezer Refrigerator

1 Answer

LG Refrigerator


That stands for a defrost heater problem. Usually it's the defrost detect circuit that has a blown thermal fuse.

Dec 16, 2007 | LG LRBC22544 Bottom Freezer Refrigerator

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