AJU34125552 Genuine OEM LG Refrigerator Water Inlet Valve
The AJU34125552 is a genuine LG OEM water inlet valve for LG refrigerators, supplying water to both the ice maker and the door water dispenser from a single valve assembly. Mounted at the rear of the refrigerator where the household water supply line connects, this valve opens on command from the control board to admit water for either feature, and closes again once the request is satisfied.
Common causes of failure include mineral and sediment buildup from hard water interfering with the internal solenoid over time, and general electrical wear. A failing valve typically shows up as the ice maker no longer producing ice, the water dispenser slowing down or stopping entirely, or both symptoms appearing together since one valve serves both functions.
Quick Answer
The AJU34125552 Genuine OEM LG Refrigerator Water Inlet Valve fixes LG refrigerators where the ice maker stopped making ice, the water dispenser isn't working, water flow is slow, or there's a leak near the valve at the back of the refrigerator. Supplies both the ice maker and dispenser from one valve.
Common Problems This Part Fixes
- Ice maker has stopped making ice, or is producing less ice than usual
- Water dispenser on the refrigerator door isn't working or has slowed down
- Both the ice maker and water dispenser affected together
- Slow water flow at the dispenser
- Water leaking near the valve at the back of the refrigerator
- No water or ice production at all
- Valve failure following known hard water conditions at the home
Cross Reference Information
Part numbers can change over a product's lifecycle as manufacturers update designs or release new appliance models. For your convenience, we've included any known superseded, alternate, or cross-reference part numbers that match this item.
Replaces Part Numbers
AJU34125552, EAP10066440, FIX10066440, OEM17872815, PS10066440, AP5957602, ALG1274937, PD00053838.
We were not able to confirm additional cross-reference or superseding part numbers for this specific part number from reliable sources at the time this page was built, so none are listed here rather than guessed. If you have a cross-reference number for your appliance, contact our support team and we will verify compatibility before you order.
Compatibility
This water inlet valve is compatible with select LG refrigerators.
Note: A specific verified compatible model list was not available at the time this page was built. LG has used several visually similar water inlet valve part numbers across different refrigerator platforms, and parts that look identical can have small but important differences. Always verify your full model number before ordering. Contact our support team with your model number and we will confirm fitment before you purchase.
Key Features
- Genuine LG OEM part — factory-specified solenoid design and flow-rate calibration
- Single valve assembly supplies water to both the ice maker and door water dispenser
- Resolves "ice maker not making ice," "dispenser not working," "slow water flow," and "leak near the valve" symptoms caused by valve failure
- Genuine OEM replacement — guaranteed fit, materials, and performance
- DIY-friendly repair — typically 15 to 30 minutes
Product Specifications
| Part Number |
AJU34125552 |
| Part Type |
Refrigerator Water Inlet Valve (Ice Maker + Dispenser) |
| Condition |
Genuine OEM |
| Brand |
LG |
| Location |
Rear of refrigerator, at the household water line connection |
| Function |
Supplies water to the ice maker and door water dispenser |
| Repair Difficulty |
Easy — 15 to 30 minutes |
| Quantity |
1 valve assembly |
| Compatible Brand |
LG |
Installation Notes
⚠️ Unplug Refrigerator Before Starting — Store Perishable Food Separately Shut off the water supply and unplug the refrigerator before beginning, and move perishable food to a cooler for the duration of the repair. Wear work gloves. Pull the refrigerator away from the wall for access, then locate the valve at the rear of the cabinet where the water supply line connects. Photograph the wiring harness and water line connections before disconnecting anything. On some installations, the wiring harness has been routed between water supply lines, which can make the connector difficult to reach and unplug — if this is the case, gently reposition or loosen a water line first rather than forcing the connector. Disconnect the water supply line from the old valve, disconnect the electrical connector, and remove the mounting screws holding the valve in place, then pull it free. Install the new AJU34125552 in the same position, secure the mounting screws, and reconnect the electrical connector fully — route the wiring the same way the original was routed, avoiding pinch points against the water lines if possible. Reattach the water supply line, tightening securely by hand plus a partial turn with pliers. Restore the water supply and check for leaks before restoring power. Push the refrigerator back into place and test both the ice maker and water dispenser over the following day to confirm normal operation. Tools needed: Phillips screwdriver, adjustable wrench or pliers, work gloves.
Frequently Asked Questions
My ice maker and dispenser both stopped working at the same time. Is that normal for a valve failure?
Yes, this is actually a very telling symptom. Because one valve assembly supplies water to both the ice maker and the door dispenser, a failure inside the valve itself commonly affects both functions simultaneously. If only one of the two has stopped working while the other functions normally, it's worth double-checking the water filter and supply line for a localized restriction before assuming the valve has failed, but a simultaneous failure of both points strongly toward this valve.
The wiring harness on my old valve was hard to reach. Is that normal?
It can be, depending on how the original installation routed the wiring. Some installations run the harness between two water supply lines, which can make the connector awkward to access and unplug. If you find yourself in this situation, gently repositioning or loosening a nearby water line first — rather than forcing the connector — makes it much easier to disconnect without damaging anything.
Could hard water be why my valve failed?
Yes, this is a common and well-documented cause. Mineral deposits from hard water can build up inside the valve over time and interfere with the internal solenoid's ability to open and close properly, eventually leading to failure. If you know your home has hard water and this valve has failed, it may be worth considering a water softener or more frequent filter changes to extend the life of the replacement.
Is this an OEM or aftermarket part?
This is a genuine OEM part, manufactured by LG to factory specifications — guaranteed fit, materials, and performance. It includes the same solenoid design and dual-function (ice maker and dispenser) configuration as the water inlet valve originally installed in your refrigerator.
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