Maytag Washer Water Level Pressure Tube Issue: Symptoms... | appliancefaults.com

Technical Background:

The Maytag washer uses a pressure switch (or water level sensor) to detect the water level in the tub. The pressure tube connects the air dome (or float) in the tub to the pressure switch. As the water level rises, it compresses the air in the tube, which exerts pressure on the switch. The switch then sends a signal to the MCU (Main Control Unit) to control the water inlet valve. A voltage of 5V DC is typically sent from the MCU to the pressure sensor, and the sensor returns a voltage signal proportional to the water pressure.

Symptoms:

The washer overfills, underfills, or fails to fill completely. You might also notice error codes related to water level or pressure. The washer may also agitate or spin at the wrong time.

Possible Causes:

Clogged pressure tube due to detergent buildup.
Damaged pressure switch preventing proper readings.
Kinked or cracked pressure tube.
Defective air dome or float in the tub.
Over-sudsing leading to water backing up into the tube.
Failing water level sensor.

Solution:

1

Disconnect power to the washer at the breaker panel (LOTO).
2

Locate the pressure switch and the pressure tube connected to it. It is usually behind the control panel or on the side of the washer.
3

Disconnect the pressure tube from both the pressure switch and the tub. Use pliers if needed to loosen clamps.
4

Inspect the tube for kinks, cracks, or clogs. Clear any clogs with warm water and a small brush. You can use a multi-meter to test the continuity of the pressure switch to ensure it is functioning. The resistance values will vary, refer to the service manual.
5

If the tube is damaged, replace it with a new Maytag OEM part. Verify the replacement tube is the correct length and diameter.
6

Reconnect the pressure tube to the pressure switch and the tub securely, making sure to tighten all clamps.
7

Restore power to the washer at the breaker panel. Run a test cycle to observe water levels. Monitor for leaks around the pressure tube connections.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any repairs. Lockout/Tagout (LOTO) procedures must be followed to prevent accidental energization. Be aware of potential electrical hazards, as some components may carry 120V AC.

Prevention:

Use the correct amount of HE (High Efficiency) detergent. Regularly clean the washer with a washer cleaner to prevent detergent buildup. Check the pressure tube annually for any signs of damage.

Expert Tip:

Many Maytag washers have a service mode. You can usually access it by pressing a specific sequence of buttons (e.g., Start/Pause, then Power, then Start/Pause again). The service mode allows you to run diagnostic tests and calibrate the water level sensor.

Frequently Asked Questions

•How do I access the service mode on my Maytag washer?

The service mode entry sequence varies by model. Consult your service manual or search online using your specific model number to find the correct sequence of button presses.

•What is the correct resistance value for the pressure switch?

The correct resistance value depends on the specific pressure switch model. Refer to the service manual for your washer model for the correct specifications and troubleshooting procedures.

•Where can I find a replacement pressure tube for my Maytag washer?

You can find a replacement pressure tube from appliance parts retailers online, local appliance parts stores, or directly from the Maytag website. Make sure to provide your washer's model number to ensure you get the correct part.

Maytag Washer Water Level Pressure Tube Issue: Symptoms and Fix

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the service mode on my Maytag washer?

•What is the correct resistance value for the pressure switch?

•Where can I find a replacement pressure tube for my Maytag washer?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: