All Answers

Hello
See the service manual link below. This will take you through diagnostics.

Hello
This sounds like a possible compressor overheating and shutting off on the internal overload possibly. We had the same situation and symptoms you are explaining.
If the refrigerator is installed in a “counter depth” arrangement—pull the refrigerator out.
Check that the temperature in the “compressor compartment” if its excessively hot the compressor will start short cycling. If airflow is poor something must be done to improve cooling/air movement.
See link to the complete service manual below.

Hello
There is not an error code on this model with 39C .
There is a 37C
Error Description Early termination of Cool Select Room Defrosting. Error is displayed if the Cool Select Room defrost cycle ends after 5 minutes. This may be due to a cooling system issue or a faulty defrost sensor.Related Parts. Cooling Cycle Check 2. Cool Select Room Defrost Sensor

35C
Error Description Early termination of Freezer Room Defrosting
Error is displayed if the freezer defrost cycle ends after 5 minutes. This may be due to a cooling system issue or a faulty defrost sensor. 1. Cooling Cycle Check 2. Freezer Defrost Sensor

29C Error Description Convertible Zone Defrost Error
Convertible Zone Heater is open or a connection is loose Convertible Zone Defrost Bimetal is open or a connection is loose Convertible Zone Defrost Sensor is open or a connection is loose After separating MAIN PCB CN70 wire from PCB, resistance value between CN70_1-7 ↔ 1 shall be 63(230) ohm ± 7%. (Resistance value is varied by input power) 0 ohm : heater short, ∞ ohm : wire/bimetal open (Must power off) 1. Convertible Zone Defrost Heater 2. Convertible Zone Bimetal 3. Convertible Zone Sensor

Hello
We do not wear masks. In most cases the masks can get compromised or are not sterilized due to the constant adjustment needed to the mask. Some experts say wearing a mask can increase the risk of infection by 100 times. This is due to your hands touching surfaces and making adjustments to your mask before sterilizing your hands. This can happen even with gloves on.

What we use for protection for our technicians for the COVID-19.
1) We always keep pocket Pen spray hand sanitizers with our technicians . See link below.
2) We use Kevlar gloves during repairs and upon completion of the repair remove one glove at a time. Then spray each glove thoroughly with our Pen spray hand sanitizer. Then spray our hands.
3) Always wear protective disposal booties.
4) Always stay a minimum of 6-foot (1.8 meters) radius from anyone that is coughing. That is the safe distance experts say will be the safe zone.
5) Always avoiding touching your eyes, nose and mouth.
6) Frequent handwashing along with 60%-95% alcohol-based hand sanitizers can kill the virus.

If you are going to use a mask, consider some of these precautions before putting on a mask.
* clean hands with hand s sanitizer, alcohol-based hand rub or soap and water.
* Cover mouth and nose with mask, make sure there are no air gaps between your face and the mask.
* Avoid touching the mask while using it; if you do, clean your hands and spray with sanitizer disinfectant.
* Always replace the mask with a new one as soon as it is compromised and do not re-use single-use masks.
* To remove the mask, remove it from behind (do not touch the front of mask); discard immediately in a closed bin; clean hands with alcohol-based hand cleaner or soap and water.

The 8E error code indicates a Freezer sensor error. I recommend starting by replacing this part.

The ice buildup along with the 4E error code indicates an issue with the defrost sensor. I would recommend starting by replacing that part.

6E indicates an ambient sensor error. I would recommend starting by replacing that sensor.

The error code you are getting indicates that the unit is in demo mode. To cancel this press the 2 upper left keys simultaneously for 5 seconds.

Hello
The thermistors can not be calibrated. They are factory set. You will need to replaced them.

The error code you are getting indicates that you have an issue with communication between the main PCB and display PCB.

It seems that you may be getting a door locking error. C-d1 I would start by checking thw door lock switch, door latch motor, or the door latch mechanism.

The C21 code you are seeing indicates that the oven is overheating.

Hi. The E represents an error code. It should be followed by a number or letter. I have attached the service manual for you. This will have all the information on this unit. Error codes start on page 63. We will need to determine what the error code is.

Hello
See the link below for the WTA3500 series Bosch training manual. This manual will show disassembly and diagnostics. You will need to disassemble so you can pinpoint where the burning smell is coming from.

Hello
See wiring diagram link below along with all ice maker diagnostics. Yes, the ERC does wire through the water inlet valve and ice maker. Have you manually harvested the ice maker ? If not go to test #44 on the technician sheet link below. This will test the ice maker and the water fill pressure and fill time.

Hello
The 4E error code corrections.
When the filling continues for more than 40 minutes or there is no change of water level for 6minutes.
① Hose Kinked or Check the water Supply Hose(Flood Safety hose is not supported)
② Water Valve Defect (Check resistance approximately 1K~2KΩ) or filter blockage
③ Wire Harness connection problem
④ Main PBA (Check for AC 120V)
⑤ Hose Pressure Hole

Causes
* Water supply valve fault
* Main PCB fault
* Water supply hose might be bent or use flood safe

Step 1
* If the water supply valve has a wire disconnected, reconnect the wire.
* Check whether the water supply valve is clogged with foreign material and whether water is supplied continually.
* Check whether no water is supplied because of freezing in the winter season.
* If the PBA relay operates abnormally, replace the PBA.
* Check the resistance for the water supply valve. Resistance: 1.0 to 2.0 kΩ between the terminals of the water supply valve.
* Check whether there is foreign material in the water valve filter.
* If the water supply valve filter is clogged, clean filter.
* Check the inlet filters dirty or clogged.

Hello
We have the service training manual on your model only. See the link below , hope this can help.

Hello
See the exact service manual for the WM38 series LG unit. Also see the link to the WM34 video series unit we have in the link below. We currently do not have the WM38 series videos. Hope this can help

Hello
See the service bulletin links below. also see tech. sheet.

Hello
See the service manual link for your model below. The top panel parts breakdown is on page #50 in section 7-1. Hope this helps.