Whirlpool Refrigerator Water Dispenser Dripping:... | appliancefaults.com

Technical Background:

The refrigerator's Microcontroller Unit (MCU) controls the water dispenser by energizing a solenoid within the water inlet valve. When the dispenser paddle is pressed, the MCU sends 12V DC to the solenoid, opening the valve and allowing water to flow. When the paddle is released, the MCU de-energizes the solenoid, closing the valve. However, if the valve doesn't seal properly, residual water pressure can cause dripping.

Symptoms:

The homeowner observes that the external water dispenser on their Whirlpool refrigerator continues to drip water for a period after each use. This can lead to water waste and potential messes.

Possible Causes:

A faulty water inlet valve.
Low water pressure.
A cracked or damaged water line.
Mineral buildup in the dispenser nozzle.
A partially frozen water line.
A defective dispenser solenoid.

Solution:

1

Turn off the refrigerator at the breaker panel. This is a crucial safety step.
2

Locate the water inlet valve (typically at the back of the refrigerator, near where the water line connects). Disconnect the water line.
3

Using a multimeter, check the valve solenoid for continuity. Set your meter to Ohms and check across the solenoid terminals. A typical reading should be between 200-500 Ohms. A reading of infinite resistance (open circuit) indicates a faulty solenoid requiring valve replacement.
4

Inspect the water lines for any kinks, cracks or damage. Replace any damaged sections using a 1/4-inch compression fitting and new NSF-approved water line.
5

Check the household water pressure. It should be between 30 and 100 PSI. You can check this using a water pressure gauge connected to an outside spigot or the refrigerator's water supply line before the inlet valve.
6

Disconnect the dispenser nozzle (usually a simple snap-in fitting) and inspect for mineral buildup or blockages. Soak the nozzle in a solution of white vinegar and water to dissolve mineral deposits. Use a small brush or pipe cleaner to clear any remaining debris.
7

If the water line inside the refrigerator is suspected of being partially frozen, try increasing the refrigerator temperature slightly to see if that resolves the issue. Avoid using excessive heat directly on the water lines.

Safety Warning:

Always disconnect power to the refrigerator at the breaker panel before performing any repairs. Lock-out/Tag-out (LOTO) procedures should be followed. The water inlet valve operates on 120V AC; avoid contact with live wires.

Prevention:

Replace the refrigerator's water filter every 6 months to prevent sediment buildup. Periodically clean the dispenser nozzle with vinegar to remove mineral deposits. Monitor water pressure to ensure it remains within the recommended range.

Expert Tip:

Some Whirlpool refrigerators have a service mode that allows you to manually activate the water dispenser solenoid for testing purposes. Refer to the refrigerator's service manual or online resources for the specific sequence to enter service mode. This can help isolate whether the issue is with the valve itself or the control board.

Frequently Asked Questions

•How do I check the water pressure going to my refrigerator?

You can purchase a water pressure gauge at most hardware stores. Connect it to the water line connection *before* the refrigerator's inlet valve. A reading between 30 and 100 PSI is optimal.

•Where is the water inlet valve located on my Whirlpool refrigerator?

The water inlet valve is typically located on the back of the refrigerator, near the bottom, where the water supply line connects. You may need to remove an access panel to see it clearly.

•What type of water line should I use to replace a damaged section?

Use NSF-certified polyethylene tubing specifically designed for potable water. Avoid using copper tubing, as it can corrode over time.

Whirlpool Refrigerator Water Dispenser Dripping: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I check the water pressure going to my refrigerator?

•Where is the water inlet valve located on my Whirlpool refrigerator?

•What type of water line should I use to replace a damaged section?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: