Hotpoint Washer Error Code dr: Drain Pump Blockage... | appliancefaults.com

Technical Background:

The Main Control Unit (MCU) monitors the water level using a pressure switch and activates the drain pump when necessary. When the MCU detects that the water level is not decreasing as expected after activating the drain pump for a certain duration, it throws the 'dr' error code. The MCU sends 120V AC to the drain pump. A break in the voltage path or a failed pump will trigger the error.

Symptoms:

The homeowner reports that the washer displays error code 'dr' and the washer is not draining water after the wash cycle. There might be standing water in the drum. The washer may also make a humming noise during the drain cycle.

Possible Causes:

Drain pump blockage.
Clogged drain hose.
Faulty drain pump motor.
Wiring issue to the drain pump.
Defective Main Control Unit (MCU).
Pressure switch malfunction.

Solution:

1

Unplug the washer from the 120V AC outlet.
2

Locate the drain pump (typically at the bottom rear of the washer). Remove the access panel using a 1/4-inch nut driver.
3

Disconnect the drain hose from the pump. Check for obstructions and clear any debris.
4

Disconnect the wires to the drain pump. Using a multimeter, test the pump motor for continuity. An open circuit indicates a faulty pump. Replace if necessary.
5

Inspect the wiring harness and connectors for damage or corrosion. Repair or replace as needed.
6

Check the voltage to the drain pump when the washer is in the drain cycle. You should read approximately 120V AC. If there is no voltage, the issue may be with the MCU.
7

If the voltage and wiring are good and the pump is clear, but the error persists, replace the drain pump. If the voltage is absent, suspect the MCU.

Safety Warning:

Always disconnect the power supply to the washer (LOTO - Lock Out Tag Out) before attempting any repairs. High voltage is present in the washer's electrical components. Improper handling can result in electric shock.

Prevention:

Regularly check and clean the drain pump filter (if equipped) to prevent debris buildup. Avoid overloading the washer to prevent excessive lint and debris from entering the drain system. Use the correct amount of HE detergent.

Expert Tip:

Many Hotpoint washers have a service mode. Consult the technical service manual (available online) to initiate the drain cycle manually for testing purposes. This can help isolate drain pump issues.

Frequently Asked Questions

•How do I access the drain pump on my Hotpoint washer?

The drain pump is typically located at the bottom rear of the washer. You will need to remove the lower access panel using a 1/4-inch nut driver or a Phillips head screwdriver. Consult the service manual for exact location and access instructions specific to your model.

•How do I test the drain pump motor with a multimeter?

Disconnect the wires from the drain pump motor. Set your multimeter to the resistance setting (Ohms). Place the multimeter probes on the motor terminals. A reading of close to zero or an open circuit (no reading) indicates a faulty motor. The exact acceptable resistance range is usually specified in the service manual.

•Where is the drain pump filter located, and how do I clean it?

The drain pump filter (if present) is often located near the drain pump access panel. It may be a small, removable screen or housing. Remove the filter, rinse it thoroughly under running water to remove any lint, debris, or foreign objects, and then reinstall it securely. Refer to your owner's manual for the specific location and cleaning instructions for your model.

Hotpoint Washer Error Code dr: Drain Pump Blockage Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the drain pump on my Hotpoint washer?

•How do I test the drain pump motor with a multimeter?

•Where is the drain pump filter located, and how do I clean it?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: