Your ice maker was working, but now is not making ice? In this article, we will show you the most common LG Refrigerator Ice Maker Problems, the reasons why it’s not working and how to test it.
TLDR: Common Ice Maker problems are usually caused by:
1. Temperature fluctuations (in the ice maker compartment)
2. Faulty water inlet valve
3. Broken ice maker or malfunctioned control board
4. Faulty ice maker fan in the freezer compartment.
Let’s start with a simple diagnostic test you can run that may provide some insight into what that problem could be.
First Step: How To Reset And test An Ice Maker?
To run the ice maker test mode, first of all, pull the handle to open the ice room and remove the ice bucket.
There are two styles of LG refrigerator ice makers. On the first model below, this is the POWER button.
Make sure it is turned ON. The TEST button is underneath.
Before pressing the TEST button, put on the towel to catch water or ice that may fall when you run the test mode.
Press and hold the Test button for about 3 seconds and the ice maker will begin to turn. If water or ice were to fall from the tray, the towel is there to catch it. The tray only holds about 4 or 5 oz of water.
Here’s another style of ice maker on this model above. There’s no POWER switch and no tray. Even though there’s no tray you should still place a towel below the ice maker before running the tests.
On this type of ice maker, there is a tiny hole on the left side. This is a Test Button. Press and hold the button for about 3 seconds until the arm starts to turn.
For the first 2 hours, the refrigerator has been plugged in, the ice maker test can only be run once. If you wish to run the test mode a second time, unplug the unit for about 30 seconds to reset the ice maker.
This RESET procedure is also applied to the ice makers located in the bottom freezer.
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If Ice Maker Not Filling With Water
water Filter was Installed Incorrectly
– If during the test mode, your ice maker didn’t fill with water, then check your
Without a filter or when the filter is installed not properly in the filter housing, water will not flow to the ice maker and water dispenser.
You just need to slide the filter into the housing, PUSH and TWIST to lock it.
If you recently changed the
With a new filter, water will flow more freely and when it reached ice maker it may create a splash.
Some amount of water will leak in the ice maker compartment to the very bottom and eventually will be on the floor.
If you have a ball-type water valve behind the fridge, try to decrease incoming water pressure to the fridge by turning it at 45 or fewer degrees. You need to play with it, to reach reasonable water pressure.
To do this adjustment, turn the water tap to 45 degrees and let somebody will push the water dispenser using a big cup or something like that.
This way you will be able to decrease water pressure to a desirable level.
Another problem can be when the ice maker leaks, its when the ice maker dumps ice in the bucket, and some ice cubes might stuck in the tray.
And when fresh water will fill the ice maker, it actually will overfill and some amount of water will spill over the tray.
In this case, pull the ice maker out and clean the inner side of the tray from the calcium buildup.
The water Inlet Valve Is Broken
When the water inlet valve failed, you will not have water as well. In order to check the inlet valve, you just need Multimeter.
But keep in mind, that many LG fridges have 2 inlet valves. The main valve is on the back of the fridge, secondary valve (for the ice maker only) is on the left door.
You need to check them both. The secondary valve gets water from the main valve. But from my experience as an appliance technician, the secondary valve causes most of the problems with the ice maker.
That’s why your LG refrigerator is not making ice, but at the same time, the water dispenser works.
Water Hose Kinked
It’s a simple thing to check, but very important, in order to figure out why ice-maker is not working.
ice Maker malfunctioned
If the ice maker failed to perform the diagnostic test and you are not able to run it, then most likely ice maker motor failed.
Control board Malfunctioned
Every LG refrigerator has a control board. If the control board not sending power to the ice maker or one of the relays on the control board failed, then the ice maker will not run.
Important: If all components mentioned above in the article are ok and the ice maker works ONLY when you press the RESET button (the ice maker should make a full turn and not make ice in automatic after that), then there is a possible problem with the main control board or ice level optical sensors on the ice maker itself.
Make sure the control board fits the refrigerator model you have !!!
the Ice maker not producing Or Dumping ice
Another possible reason is malfunctioned ice maker fan, which is located in the freezer compartment.
This fan blows cold air into the ice maker compartment and freezes up water.
If the temp in the ice maker compartment high than -12C, ice will not be produced.
In order to check if this fan is working, you need to apply a magnet to simulate a closed door ( see the top side of the door where the magnet is located)
If you feel cold air coming out from the vents, the fan is good.
This is a picture of the back panel in the freezer compartment with the evaporator and ice maker fans.
Ice maker fan part# ADJ72911303
What should my LG freezer be set at to produce ice?
-2°F or -20°C is the recommended temperature setting for normal ice production. In order to adjust the temperature: Press the FREEZER button to cycle through the range of available settings and set it to the desired temperature.
Other Ways How To Reset The Ice Maker
In order to do a simple reset of the ice maker, unplug your refrigerator or turn the breaker OFF for at least 30 sec. This procedure will reset the ice maker.
What Does “Ice Plus” Mean On My LG Refrigerator?
When all the ice in the refrigerator is used, it will take 2 hours to produce the next bunch of ice cubs. Some LG models are equipped with an “Ice Plus” feature. This feature just speeds up the freezing process and allows it to produce ice cubes 2 times faster.
How long does it take to make ice?
It depends. If you just bought and installed a new refrigerator, then it may take about 24 hours. But if your refrigerator works more than 24 hours, in this case, every 2-3 hours ice maker will produce new ice cubes.
UPDATE: This is how the ice maker works when releasing ice cubes and it’s normal to twist type ice trays. For those who didn’t know that, it seems like the right side of the ice tray has been jammed or stuck.
If the ice tray not returning to the initial position and is stuck in a “twisted” position, it is possible that it is jammed by ice or any other mechanical obstacles.
How To Test Ice-Detecting Optical Sensor?
Optical sensor malfunctioning, one of the reasons why your ice maker may complete Harvest Cycle, but not working in Automatic Mode.
The first thing you need to do is to check ice-detecting optical sensors, they are located at the bottom of the ice maker on each side.
- Remove Ice Bin from the compartment
- Close the left door
- Wait for 3 minutes
- Freezer Door stays open
- Push Refrigerator button and Lock button at the same time
If ETY is shown on the display after the procedure above, the Ice-detecting sensor is normal.
If FULL is shown on the display after the procedure above, the Ice-detecting sensor is abnormal.
When it shows FULL with an empty ice bin, something is wrong with these sensors. As long as they are part of the ice maker, one of the options is to replace the ice maker and see if it will solve the problem.