Hotpoint Washer Error Code E3: Water Level Sensor... | appliancefaults.com

Technical Background:

The main control unit (MCU) monitors the frequency signal from the water level pressure sensor to determine the water level inside the washer tub. The sensor uses air pressure from the tub to vary its output signal. The MCU interprets this signal to control the water fill valve and drain pump. An E3 error indicates that the MCU is receiving an invalid frequency signal from the sensor. This could be due to a faulty sensor, wiring issues, a clogged hose, or a defective MCU.

Symptoms:

The washer displays an E3 error code and may stop mid-cycle. The washer may overfill or not fill at all, or it may fill and drain continuously. The wash cycle might not start, or the washer may operate erratically.

Possible Causes:

Faulty water level pressure sensor (also called a pressure switch).
Wiring harness issue between the pressure sensor and the main control board.
Clogged or kinked pressure sensor hose.
Defective main control board (MCU).
Over sudsing during wash cycle interfering with pressure readings.

Solution:

1

Unplug the washer from the 120V AC power outlet or turn off the appropriate breaker in the breaker panel.
2

Locate the water level pressure sensor, typically found near the bottom of the washer cabinet. Check the hose connecting it to the tub for kinks, clogs, or damage.
3

Disconnect the hose from the pressure sensor and blow through it to ensure it's clear. You can use a small length of tubing to help blow through the hose.
4

Inspect the wiring harness connecting the pressure sensor to the main control board for loose connections, corrosion, or damage. Use a 1/4-inch nut driver to remove any access panels.
5

Use a multimeter to check the continuity of the wires in the harness. Set your meter to ohms and confirm a low resistance reading through each wire.
6

If the wiring and hose are good, replace the water level pressure sensor. Make sure to properly seat the hose on the new sensor.
7

If replacing the sensor doesn't resolve the issue, the main control board (MCU) may be defective and require replacement. Replacement requires careful programming of the new board.

Safety Warning:

Always disconnect power to the washer before performing any repairs. Lock Out/Tag Out (LOTO) procedures must be followed to ensure the washer cannot be accidentally powered on during repairs. Some components may retain a charge even after the power is disconnected. Exercise caution when working near electrical components. Incorrect wiring can lead to electric shock or fire.

Prevention:

Use only HE (High Efficiency) detergent in the recommended amount to prevent over-sudsing. Periodically inspect the pressure sensor hose for kinks or blockages. Avoid overloading the washer, as this can strain the components.

Expert Tip:

On some Hotpoint washer models, you can enter a diagnostic mode by pressing and holding the Start/Pause button while simultaneously pressing the Power button six times within 12 seconds. This may display specific error codes or allow you to run diagnostic tests.

Frequently Asked Questions

•How do I access the water level pressure sensor?

The pressure sensor is usually located behind an access panel at the bottom rear or side of the washer cabinet. You may need to remove screws or clips to remove the panel. Refer to the washer's service manual for specific instructions.

•Where can I purchase a replacement water level pressure sensor?

You can purchase a replacement sensor from appliance parts retailers online or at local appliance repair stores. Make sure to match the part number to your specific washer model for compatibility.

•What is HE detergent and why is it important?

HE (High Efficiency) detergent is specially formulated to produce fewer suds than regular detergents. Using regular detergent in an HE washer can cause over-sudsing, which can interfere with the washer's operation and damage its components. HE detergent is labeled as such.

Hotpoint Washer Error Code E3: Water Level Sensor Frequency Fault Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the water level pressure sensor?

•Where can I purchase a replacement water level pressure sensor?

•What is HE detergent and why is it important?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: