Whirlpool Duet Washer F28 Error: Resetting After Power... | appliancefaults.com

Technical Background:

The F28 error code on a Whirlpool Duet washer typically indicates a communication problem between the main control board (MCU) and other components, primarily the motor control board or user interface. The MCU relies on a specific voltage path and clear communication to operate correctly. A power surge can damage the sensitive electronic components, disrupting the communication lines and leading to the error. The EEPROM stores critical operational data, and corruption can also trigger this code.

Symptoms:

The Whirlpool Duet washer displays an F28 error code on the control panel after a recent power surge. The washer may not start, or it may stop mid-cycle. The display may be unresponsive to button presses.

Possible Causes:

Power surge damaged the MCU (Microcontroller Unit)
Corrupted software in the control board
Loose wiring harness connection to the MCU
Failed EEPROM (Electrically Erasable Programmable Read-Only Memory) on the board
Defective motor control board
Damaged UI (User Interface) board causing communication failure

Solution:

1

Disconnect power to the washer at the breaker panel.
2

Visually inspect the wiring harness connecting the main control board to the motor control board and the UI board for any damage.
3

Using a multimeter, check the voltage supply to the main control board. You should read approximately 120V AC at the designated input terminals when the power is on (after reconnecting the breaker).
4

Disconnect and reconnect the wiring harness connectors to the main control board to ensure a secure connection.
5

If possible, attempt to access the washer's diagnostic mode (refer to the service manual for the specific sequence, usually involving pressing specific buttons on the UI in a sequence such as pressing START/PAUSE, then POWER quickly).
6

If a reset option is available in the diagnostic mode, attempt to perform a hard reset of the control board.
7

If the F28 error persists, the main control board likely needs replacement. Order a new control board with the correct part number for your Whirlpool Duet model.

Safety Warning:

Disconnect power to the washer at the breaker panel before attempting any repairs. Follow Lock-Out/Tag-Out (LOTO) procedures. Some components may retain a high voltage even after the power is disconnected. Be cautious when working around the control board.

Prevention:

Install a surge protector on the outlet where the washer is plugged in. This can help prevent future damage from power surges. Regularly inspect the wiring and connections to ensure they are secure.

Expert Tip:

Some Whirlpool Duet models have a service mode that allows for more detailed diagnostics and error code clearing. To enter service mode, unplug the washer, then plug it back in while simultaneously pressing and holding the START/PAUSE button for 5 seconds. Consult the service manual for your specific model for more detailed instructions and troubleshooting steps. This may bypass the need to replace the control board in some cases.

Follow-up Questions:

Frequently Asked Questions

•What is the correct part number for the main control board for my specific Whirlpool Duet model?

The part number can be found on a sticker on the existing control board, or you can look it up using your model number on the Whirlpool parts website or a reputable appliance parts supplier's website.

•How do I replace the main control board in my Whirlpool Duet washer?

First, disconnect power to the washer. Remove the top panel of the washer. Locate the main control board (usually in a plastic housing). Carefully disconnect all wiring harnesses from the old board. Remove the old board and install the new board, reconnecting all wiring harnesses in the same locations. Reassemble the washer.

•If the control board is replaced, does it need to be programmed or calibrated?

Some replacement control boards may require a specific programming procedure to match your washer's configuration. Consult the installation instructions included with the new control board or the service manual for your model. This may involve entering a specific sequence on the user interface.

Whirlpool Duet Washer F28 Error: Resetting After Power Surge

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the correct part number for the main control board for my specific Whirlpool Duet model?

•How do I replace the main control board in my Whirlpool Duet washer?

•If the control board is replaced, does it need to be programmed or calibrated?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: