Hotpoint Washer Error Code 23: Heater Relay Failure... | appliancefaults.com

Technical Background:

The MCU sends a signal to the heater relay on the control board to energize the water heater element. If the relay fails to engage or disengage properly, the washer will detect a fault and display error code 23. The voltage path includes the 120V AC power supply to the control board, the relay coil, and the wiring to the heater element.

Symptoms:

The washer displays error code 23 and may not heat the water during the wash cycle. Clothes may come out cold, and the wash cycle may take longer than usual or not complete.

Possible Causes:

Faulty heater relay on the control board.
Wiring harness issue between the control board and heater.
Defective water heater element.
Overheating due to restricted water flow.
Software glitch in the main control unit (MCU).

Solution:

1

Disconnect power to the washer at the breaker panel.
2

Access the washer's control board. Usually located behind the control panel.
3

Visually inspect the heater relay on the control board for signs of burning or damage.
4

Use a multimeter to test the heater relay coil. Check for continuity. A reading of around 50-150 ohms is typical. If open, replace the control board.
5

Check the wiring harness between the control board and the water heater element for breaks or loose connections. Use a multimeter to check continuity of each wire.
6

Inspect the water heater element for continuity using a multimeter. Replace if open.
7

Restore power and run a test cycle to verify the repair.

Safety Warning:

Always disconnect power to the appliance before performing any repairs. Use proper lockout/tagout procedures. Be aware of high voltage present at the control board and heater element. Wear appropriate safety gear, including safety glasses and gloves.

Prevention:

Periodically check the water inlet hoses for proper flow. Avoid overloading the washer to prevent strain on the components. Use the correct amount of detergent to avoid excessive suds.

Expert Tip:

On some Hotpoint washers, you can enter service mode by pressing and holding the Start button for 5 seconds while simultaneously pressing the Power button. This may allow you to clear error codes and run diagnostic tests.

Frequently Asked Questions

•How do I access the control board on my Hotpoint washer?

Typically, you need to remove the top panel or the front panel of the washer. Refer to the service manual for your specific model, but it usually involves removing screws with a 1/4-inch nut driver or a Phillips head screwdriver.

•What is the typical resistance reading for a good water heater element?

A good water heater element should typically read between 9 and 13 ohms. An open circuit indicates a failed element.

•If the heater element and relay test good, what else could cause error code 23?

A less common cause could be a software glitch in the MCU. Try resetting the washer by unplugging it for 5 minutes, then plugging it back in. If the problem persists, the MCU may need to be replaced.

Hotpoint Washer Error Code 23: Heater Relay Failure Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the control board on my Hotpoint washer?

•What is the typical resistance reading for a good water heater element?

•If the heater element and relay test good, what else could cause error code 23?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: