IN-DOOR ICE MAKER ICING SENSOR ERROR
Cause
The Main PCB is not getting a signal from the In-Door Icing sensor.
Solution
Check the wiring at the sensor under the left side hinge cover, and Main PCB.
Remember an ERROR CODE will only appear if – 0 or 5Vdc is detected at the Main PCB
DETAILS BELOW:
26 Responses
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Issue: IS E display on the cover display.
Multiple repaired by DMST.
Replaced door foam.
In door ice maker keep running.
Need parts order after 1st visit which are pcb main and dispenser.
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Craft icemaker
Hello guys I have a LG refrigerator popping error 15 at the UI and not letting the customer to activate water dispenser or ice dispenser. Do you have an idea?
IS and IU Error codes are both icemaker related error codes. IU is specifically the freezer icemaker motor error. Most likely there is an issue with the icemaker itself. Try running test mode on the icemaker(s) and check for wiring issues or obstructions around the tray that could be keeping the icemaker from completing a full cycle.
I’m getting this error code on a unit that doesn’t have an ice maker on the door. Why is it showing this error?
If any of the PCBs have been replaced, such as the Main PCB, ensure that the correct part number was ordered according to the model, serial number, and product code. This is likely the issue, as the unit is looking for the specific configuration it was programmed to recognize.
What if you donr have the in door ice maker.
Brennan, we have found some have had errors that don’t apply to the model they are working on because the wrong main PCB has been replaced. If any PCB’s have been replaced double check the part numbers, making sure you have included the serial number product codes, and check for any service bulletins.
Thanks
Hi
LG Fridge model GF-L708PL.
Ice machines makes ice for 3hrs and then displays error code ISe. Starts making ice again once resetting the fridge. Cycle then repeats (error code ISe after 3hrs).
Replaced ice maker and ice room sensor. Issue still persistent.
I detected 5Vdc at the Main PCB. Both water valves check fine for resistance.
Any advice on how to fix?
That model does not pull up, but IS means the main pcb is seeing a open or shorted icemaker sensor. You would want to check DC voltage on the icemaker sensor from the Main PCB (or whatever PCB the sensor receives power from) with the connector connected to the board. Use the chart in the article for reference. I see in your comment you read 5vdc which would be correct if the connector was unplugged and you were reading the pins on the board directly. If you were reading 5Vdc with the connector connected then the sensor is reading open at the board. Could be a wiring issue in the door possibly since the icemaker and board have already been replaced.
Thank you. Here are steps I took:
1. I removed the ice mixer from the door and disconnected it from the plug.
2. Ensured the power to the fridge was on
3. Tested the DC voltage for the ice maker sensor at this plug in the door (two blue wires). DC voltage recorded at this plug was “0”.
I have not replaced the main PCB yet.
Does the “0” dc reading indicate a broken wire?
FYI – Serial number for this fridge is:
810KRNM3D663
Thank you.
I do not have the technical information for this specific model. However, you should be able to trace the blue wires to the left hinge area and follow them back to the main PCB to verify voltage.
There should be a circuit diagram located either on the back of the unit or under the main PCB cover. Locate the connector for the ice maker and check for voltage to the ice maker sensor at that point (it should be the same blue wires).
Be sure to back-probe the connector using needle leads when checking voltage. If no voltage is present, replace the main PCB.
Thanks
Thank you. Here are steps I took:
1. I removed the ice mixer from the door and disconnected it from the plug.
2. Ensured the power to the fridge was on
3. Tested the DC voltage for the ice maker sensor at this plug in the door (two blue wires). DC voltage recorded at this plug was “0”.
I have not replaced the main PCB yet.
Does the “0” dc reading indicate a broken wire?
FYI – Serial number for this fridge is:
810KRNM3D663
Thank you.