Hotpoint Washer Error Code 1: Drain Pump Failure... | appliancefaults.com

Technical Background:

error code 1 on a Hotpoint washer typically indicates a problem within the drain pump circuit. The main control unit (MCU) monitors the current draw and feedback from the drain pump. If the MCU detects an abnormal current draw (too high or too low) or no feedback from the pump, it triggers error code 1. The MCU sends 120V AC to the drain pump via a relay when the drain cycle is initiated.

Symptoms:

The homeowner reports that the washer is displaying error code 1 on the control panel and the washer is not draining properly. Water remains in the drum after the wash cycle.

Possible Causes:

Clogged drain pump filter
Kinked or blocked drain hose
Faulty drain pump motor
Wiring harness issue to the drain pump
Defective main control board (MCU) relay

Solution:

1

Unplug the washer from the outlet to disconnect power. LOTO procedure.
2

Locate the drain pump, usually at the bottom front or rear of the washer. Access may require removing a lower access panel using a 1/4-inch nut driver.
3

Inspect the drain pump filter for debris. Remove the filter (usually a twist-out type) and clean thoroughly. Reinstall the filter.
4

Disconnect the drain hose from the drain pump. Inspect the hose for kinks, clogs, or obstructions. Clear any blockages. Ensure the hose is properly connected to the standpipe and not inserted too far (no more than 6 inches).
5

Using a multimeter, check for 120V AC at the drain pump connector during the drain cycle. If no voltage is present, the issue may be with the wiring or the main control board.
6

If voltage is present, disconnect the drain pump connector. Check the drain pump motor winding resistance using a multimeter. Expect a reading between 5 and 20 ohms. An open circuit indicates a faulty pump.
7

If the pump motor is faulty, replace the drain pump assembly.

Safety Warning:

Disconnect power to the washer before performing any repairs. Lock Out / Tag Out (LOTO) procedures are essential. The washer operates on 120V AC, which can cause serious injury or death. Wear appropriate personal protective equipment (PPE), including safety glasses and gloves.

Prevention:

Regularly clean the drain pump filter (every 3 months) to prevent clogs. Avoid overloading the washer with laundry. Ensure the drain hose is properly installed and not kinked.

Expert Tip:

To manually drain the washer, disconnect the drain hose and carefully lower it into a bucket. Be prepared for a large volume of water. Alternatively, some Hotpoint washers have a service mode that allows you to initiate a drain cycle for diagnostic purposes. Consult the service manual for the specific model for details on entering service mode.

Frequently Asked Questions

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

The drain pump filter is usually located behind a small access panel at the bottom front of the washer. You may need a flathead screwdriver to pry open the panel. The filter itself usually twists out counterclockwise.

•What is the correct standpipe height for my drain hose?

The standpipe should be at least 30 inches tall and no more than 96 inches. Ensure the drain hose is not inserted more than 6 inches into the standpipe to prevent siphoning.

•Where can I find a replacement drain pump for my Hotpoint washer?

You can find replacement drain pumps at most appliance parts retailers, both online and in local stores. Be sure to have your washer's model number handy to ensure you get the correct part.

Hotpoint Washer Error Code 1: Drain Pump Failure Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

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

•What is the correct standpipe height for my drain hose?

•Where can I find a replacement drain pump for my Hotpoint washer?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: