LG Refrigerator Water Inlet Valve Replacement — What This Part Does
The water inlet valve is a solenoid-operated assembly that opens to admit water to your LG refrigerator’s dispenser and ice maker. When the dispenser button is pressed or the ice maker signals for water, the valve’s solenoid coil energizes and opens a port to let water flow through tubing to the correct destination.
The valve fails when its solenoid coil burns out, when mineral deposits or debris prevent it from sealing or opening properly, or when the valve body cracks and leaks. Mechanical wear over time can also stop the valve from opening reliably. Because the valve is an assembly, technicians replace the entire unit rather than attempting to rebuild it.
Signs It Needs Replacing
- No water from the dispenser Pressing the dispenser paddle produces no water flow, indicating the valve is not opening.
- Ice maker stopped producing ice The ice maker does not fill with water because the valve is not delivering water to the fill tube.
- Intermittent water flow or ice production The valve opens inconsistently, resulting in partial fills or occasional dispensing failures.
- Water leaking from the valve area or rear of the fridge A cracked valve body or failed internal seal causes water to drip or pool behind the refrigerator.
- Dripping or continuous water flow when dispenser is not in use The valve is not sealing fully when closed, allowing water to leak into the dispenser or ice maker constantly.
- Valve fails resistance test Testing the solenoid coil with a multimeter shows an open circuit or out-of-range resistance, confirming a failed coil.
How to Replace It
- Unplug the refrigerator from the wall outlet and turn off the water supply shutoff valve behind or beneath the unit.
- Pull the refrigerator away from the wall to access the rear panel.
- Remove the screws securing the rear or condenser access cover and lift the panel off to expose the water inlet valve assembly.
- Disconnect the electrical connectors from the water inlet valve by pressing the release tabs and pulling straight off.
- Remove the mounting screw or screws holding the valve bracket to the refrigerator cabinet.
- Press the locking collar or squeeze the clip on each water tubing connector and pull the tubing straight off the valve ports.
- Install the new water inlet valve assembly by reconnecting the water tubing until each tube clicks or locks into place, then secure the mounting screw and plug in the electrical connectors.
- Reinstall the rear access cover, turn on the water supply, and plug in the refrigerator.
- Check for leaks at the valve connections and test the water dispenser and ice maker to verify proper operation.
The Part You Need
| Part | Notes |
|---|---|
| LG water inlet valve assembly | Amazon | Look up your model and serial number on the rating plate inside the refrigerator (usually on the left wall or ceiling) to find the correct part number. Common LG valve part numbers include AJU72992601, AJU73753101, AJU72992603, and 5220JB2009A, but your model may require a different assembly. |
Related Error Codes
If this part is failing you may also see one of these codes:
- Lg Refrigerator C1 error code
- Lg Refrigerator Cf error code
- Lg Refrigerator Co error code
- Lg Refrigerator Dh error code
- Lg Refrigerator Ds error code
- Lg Refrigerator Eid error code
- Lg Refrigerator Eiu error code
- Lg Refrigerator Ff error code
- Lg Refrigerator Fs error code
- Lg Refrigerator Gf error code
When to Call a Pro
If you are uncomfortable working with both water and electrical connections, or if you find that the new valve does not fix the problem and suspect low water pressure or a clogged filter upstream, call a technician. A pro can test solenoid resistance, check flow meter readings, and rule out supply-line or pressure issues that mimic a bad valve. If water is leaking and you cannot locate the source, a technician can inspect the entire water delivery system to prevent damage to your home.