Due to the danger and complexity of electronic equipment repair, the following technical tip is intended for professional reference only. Please refer to manufacturer’s recommendations as Encompass does not guarantee the accuracy, reliability or safety of this information.
There are many reasons to choose an LG refrigerator, and the slimline ice maker systems found in many of the latest models are among the best. Fixing the ice maker isn’t a job that requires emergency refrigerator service — after all, what are those plastic trays for? But most people prefer not to have to balance trays from the sink to the freezer without sloshing water on the floor.
When an LG refrigerator ice maker stops working, here are six likely culprits:
1. Water Inlet Valve
The electronically-controlled water inlet valve is used to supply water to the dispenser unit. To function properly, it should deliver a flow of at least 20 psi. When the psi falls below this level, the LG refrigerator may still produce water (at a slower rate), but will not supply ice.
Use a multimeter to check current flow and power levels. If the figure is under 20 psi, increase flow by turning the valve. However, if the fridge gains the right volume of water but still won’t make ice, a new water inlet valve is needed.
2. Water Filter
Water filters aren’t just for producing great tasting water free from impurities. They’re also required for maintaining a suitable flow of water. If there has been a noticeable change in the taste of your water and ice before the ice maker’s failure, this could be the reason.
The lifespan of a water filter is influenced by a host of factors ranging from frequency of usage, specific LG model, and natural home water supply hardness. As a rule, manufacturers recommend changing water filters every six months, and most refrigerators provide a signal when it’s time.
3. Ice Maker Power Switch
LG refrigerators use multiple components that are responsible for different parts and functions. Ice makers are part of a self-contained unit, meaning they can be switched off even when the fridge is on, so first check to ensure it’s in the on position.
However, the ice maker can stop functioning even when the switch is on. The ice maker can be reset either manually or automatically. depending on whether the refrigerator uses a Twist/Flex Tray, Custom Cube, or Early Twist/Flex Tray so be sure to check the manual.
4. The Internal Temperature
For an ice maker to function correctly, it needs to reach a temperature of -4°F. It usually takes up to 24 hours for a newly-installed refrigerator to reach this temperature. The internal temperature of the freezer section can be set higher at 19°F, which is why the ice maker may be the last component to function as it should. If the ice maker is set to a higher temperature, ice production will be limited at best and take a long time.
3. Ice Level Control Board
Some LG models are equipped with an infrared beam that detects quantity of ice in the ice bucket at any given time. If the beam stops working due to lack of power or a mechanical fault, the refrigerator’s onboard technology cannot switch to ice making mode.
If the refrigerator is plugged in and receiving the right level of water without making any ice, this could be the issue. A professional refrigerator repair service could confirm this and change just the ice level control board instead of the entire ice maker.
6. Refrigerator Door
LG refrigerators only work when the door is shut. Once the fridge door opens, the ice and water dispenser automatically shuts off until the switch is fully closed. Even if the door shuts to a point where the onboard computer thinks it is shut, any issues with the latch will cause problems.
A multimeter test will check for continuity and defects to determine if the door switch should be replaced or the sealant just needs to be changed. In more severe cases, replacing the entire LG refrigerator door could be required. Still, it’s better than replacing the whole product.
If the ice maker is the only fault on an LG refrigerator, consult the manual to check any error codes, which can provide further insight and prevent a costly replacement.
Visit Fred’s Appliance Academy to learn more about the training provided in appliance repair.
Special thanks to Fred’s Appliance Academy for this helpful tip!