I have a Kenmore Elite bottom freezer refigerator. the display panel is showing an error code of "Er dH". What does this mean?

Hello Mike,
It means that most likely that your Defrost Heater (DH) is not working and one of the following items could be bad;
Er dH Sensor did not get over 40 F Faulty fuse, heater, control board Controller assembly, defrost heater, relay on control board Here is the whole list for your refrigerator;
Kenmore Bottom Freezer Refrigerator Error Codes for 795 Models Sears...

Good Luck!
Rich Lilja

I think you mean a dh error code which is a defrost problem either your sensor or heater is bad

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.

I found this to be quite up your alley... gives you possibilities for DIY repair.

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

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.

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.

This error code has something to do with a defrost sensor and happened after an extended power outage. I unplugged the refrig and it reset itself!

check your service manual and see what it say about err dh

unplug the unit from the wall and re-plug it in and see if the display goes back to normal. It will stay that way untill the next defrost cycle and the code out again. Most likely there is a controller located on the right side of theevap that may need replacing. The code is saying there is a defrost problem.

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.