Fix No Water Issue: Replace LG Refrigerator Valve AJU73753101

Is your refrigerator struggling to produce ice or dispense water? The culprit could be a faulty water valve, a common issue in many home appliances. Don’t worry—our step-by-step guide, complete with a helpful how-to video below, will have your fridge back to normal in no time!

Looking for the right part? Enter your appliance model number below to find the exact match and get your appliance running like new again!

Replacing the water valve in your refrigerator is an important repair that will restore ice and water functionality. The water valve sometimes called the inlet valve, is a key component that delivers water to the ice maker and dispenser in refrigerators with these features. When this valve fails due to age, minerals in the water, or other factors, you’ll notice issues like:

• No ice production even though the freezer is cold
• Very slow ice cube refilling
• Lower water flow from the dispenser

With some patience and the right materials, your ice and water will be flowing properly again after switching out this affordable part. Let’s get started!

Watch here: How to install water valve 

The information in this article may not apply to your specific appliance model. We recommend consulting your manufacturer’s documentation or contact us with any questions.

Tools and materials needed

Replacing the water valve requires a few specialized tools:

• Phillips screwdriver
• Adjustable wrench 
• Work gloves 
• Safety goggles
• Water valve aju73753101– Take your model number to AppliancePartsPros.com to locate the correct part for your appliance.

Safety first

Your safety should always be the top priority when performing any appliance repair. 

• Always power off and unplug your appliance or switch off the circuit breaker before attempting any maintenance or replacement work. This keeps you safe by preventing any risk of electric shock. 
• If the appliance has recently been used, give it plenty of time to cool down before working on it. 
• Take your time and don’t rush while working to prevent accidents and personal injuries.
• Work in a well-lit area so you can clearly see and access appliance parts.
• Keep your workspace free of clutter and other obstacles. Keep children and pets away from the work area.
• Never work on internal parts with wet hands. Make sure the work area is completely dry.
• Be gentle when handling or removing parts. Excessive force might damage the appliance or cause personal injury.
• Wear insulated work gloves to protect your hands from sharp metal parts and debris.
• When working with wires, avoid touching any exposed wires or terminals. If you need to touch a wire, use a non-conductive tool or wear insulating gloves to prevent electrical shock.
• Consider wearing safety glasses and/or a dust mask when working with chemicals, dust or a large amount of debris to prevent irritation or injury.
• If your appliance has any parts that hold water, turn off the water supply at the outlet before beginning repairs. Keep towels ready to catch any residual water in the system when removing parts.

Step-by-step water valve replacement instructions

Follow these sequential steps to safely replace your faulty refrigerator water valve:

Step 1- Remove back panel 

Most refrigerators have a thin metal panel or piece of cardboard covering the back compartment which must be removed to access the components inside:

1. Use the Phillips head screwdriver to undo all screws securing the panel. These are commonly found along the edges and corners.
2. Pull off the panel gently to avoid bending and set it aside carefully.

With the panel detached, you’ll have open access to the valve and connections.

Step 2- Disconnect water lines

The inlet and outlet plastic water tubing must be detached from the valve before taking it off the refrigerator:

1. Place a towel under the water valve in case of dripping water.
2. Use 1/2 inch open-ended wrench to unscrew water line on the valve. 
3. Twist the line gently side to side easing it off once loose enough.

Step 3- Remove fasteners and electrical plug

Additional fasteners secure the valve itself:

1. A wiring harness attaches from the valve to an outlet providing power. Gently pull this plug off.
2. Use the Phillips head screwdriver to remove the screws holding on the water valve bracket.
3. Retaining clips also commonly hold lines. Carefully pry these off with needle nose pliers if present.
4. Disconnect the wire harness, press in the locking tab to release the connector.
5. Use Phillips head screwdriver to remove the 3 screws holding the water injector. 
6. Once the screws are removed pull out the water injector.
7. Remove the retaining clip from the old water valve so you can install in on the new one.

The valve will now detach completely.

Step 4- Install New Replacement Valve

With all fasteners removed, you can now reverse steps to install a new OEM valve:

1. Place the new injector into the opening on the back and push it in all the way.
2. Secure the bracket holding the injector with the Phillips screws
3. Install the mounting clip for the water line and screw it to the cabinet.
4. Plug in the wire harness for the new water valve, make sure it’s a secure connection.
5. Line up the bracket on the water valve to the cabinet. 
6. Install the screw with the Phillips head screwdriver.

Make sure the valve orientation allows water lines to thread back through properly.

Step 5- Verify repair

If any problems come up after attempting water valve replacement, check these items:

1. No electric power – If the refrigerator fails to turn back on after, double check the correct power cable connection and no tripped breakers. Also, verify the new valve wiring harness is securely inserted.
2. The water dispenser has low flow – Clogged tubing is often the issue if a newly installed valve has a weak stream. Disconnect lines and flush thoroughly with water and air to clear out debris inside.

More information

Thanks for reading! We hope this guide helped you replace the water valve in your LG refrigerator. 

If you still need some replacement parts, grab your model number and head over to AppliancePartsPros.com. We offer over two million parts and most orders arrive in two business days. If you need some help with finding the right part or placing an order, you can contact our team at 1 (877) 477-7278.

While you’re waiting for your new part to arrive, you can explore our DIY blog and watch thousands of video tutorials on our YouTube channel.

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