GE Dishwasher Showing 888 on Display: Troubleshooting... | appliancefaults.com

Technical Background:

error code 888 often indicates a problem with the main control board, specifically related to the MCU (Microcontroller Unit) which manages the dishwasher's functions. A power surge can damage the sensitive electronic components, leading to corrupted firmware or hardware failure. Voltage paths and regulation circuits on the board could be compromised, causing the error code.

Symptoms:

The dishwasher displays error code 888 on the control panel. The dishwasher may not start, may start and stop intermittently, or may exhibit other unusual behavior.

Possible Causes:

Power surge damaging the main control board.
Corrupted firmware on the MCU (Microcontroller Unit).
Voltage fluctuations from the power outlet.
Component failure on the main control board (e.g., capacitor, resistor).
Loose wiring connections to the control board.
Water damage to the control board

Solution:

1

Disconnect power to the dishwasher at the breaker panel.
2

Locate the main control board, typically behind the control panel or at the base of the unit. You may need a 1/4-inch nut driver to remove screws securing the access panel.
3

Inspect the control board for any visible signs of damage, such as burned components or corrosion. Use a bright flashlight for thorough inspection.
4

Check the incoming voltage at the control board using a multimeter. It should read 120V AC. If not, check the outlet and wiring using a voltage tester. Repair or replace faulty wiring as needed.
5

If the board appears damaged, replace the main control board with a new, compatible GE replacement part. Ensure the part number matches your dishwasher model.
6

Reconnect power to the dishwasher and observe if the error code clears. Run a short test cycle to confirm proper operation.
7

If the error persists after replacing the board, or if you're uncomfortable with electrical work, consult a qualified appliance technician.

Safety Warning:

Always disconnect power to the dishwasher at the breaker panel before performing any repairs. Use proper Lock-Out/Tag-Out (LOTO) procedures to prevent accidental re-energization. Dishwashers contain high voltage components, which can cause serious injury or death.

Prevention:

Install a surge protector on the outlet powering the dishwasher to protect it from power surges. Periodically check the power cord and outlet for any signs of damage.

Expert Tip:

Some GE dishwashers have a service mode that can be accessed by pressing specific button combinations on the control panel. Consult the service manual for your model to access the service mode and run diagnostics.

Frequently Asked Questions

•What is the part number for the main control board in my GE dishwasher model?

You can find the part number in your dishwasher's service manual, on the control board itself, or by searching online parts retailers using your dishwasher's model number.

•How do I access the service mode on my GE dishwasher to run diagnostics?

The button sequence to enter service mode varies by model. Refer to the service manual for your specific GE dishwasher model. Common sequences involve pressing and holding specific button combinations (e.g., Start/Reset and Heated Dry) for a few seconds.

•What type of surge protector is recommended for a dishwasher?

A heavy-duty surge protector with a high joule rating (at least 2000 joules) is recommended. Look for a surge protector specifically designed for appliances or sensitive electronics.

GE Dishwasher Showing 888 on Display: Troubleshooting Power Surge and Board Issues

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the part number for the main control board in my GE dishwasher model?

•How do I access the service mode on my GE dishwasher to run diagnostics?

•What type of surge protector is recommended for a dishwasher?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: