GE Profile Dishwasher 1H Display: Exiting the Settings... | appliancefaults.com

Technical Background:

The '1H' error code on a GE Profile dishwasher typically indicates an issue within the main control unit (MCU) related to the settings menu or control panel communication. The MCU uses low-voltage DC signals (typically 5V DC) to interpret button presses and navigate the user interface. If the voltage path is interrupted or misinterpreted, or if the MCU logic is corrupted, the 1H error can occur.

Symptoms:

The homeowner reports that the dishwasher displays a '1H' error code. The dishwasher may be stuck in the settings menu, or the control panel may be unresponsive to button presses. The dishwasher might function normally otherwise, but the error persists.

Possible Causes:

Stuck or unresponsive control panel buttons
Corrupted software or firmware on the main control board
Power surge or electrical interference affecting the control board
Faulty ribbon cable connecting the control panel to the main control board
Damaged or shorted keypad membrane
Incorrect user settings causing a software loop

Solution:

1

Power Cycle: Turn off the dishwasher by disconnecting it from the breaker panel for 5 minutes.
2

Button Check: Inspect the control panel buttons for any signs of stickiness or damage. Clean around the buttons with a slightly damp cloth.
3

Ribbon Cable inspection: Unplug the dishwasher. Using a 1/4-inch nut driver, remove the control panel. Inspect the ribbon cable connecting the control panel to the main control board for any damage or loose connections. Reseat the cable.
4

Voltage Check: After reassembly and reconnection, verify the voltage at the main control board. You should measure 120V AC at the power input.
5

Factory Reset (if available): Some GE Profile dishwashers have a factory reset option in the settings menu. Consult the user manual for the specific procedure.
6

Control Board Replacement: If the issue persists, the main control board may be faulty and require replacement. Order the correct replacement part for your model.
7

Keypad membrane replacement: If the keys are physically unresponsive, replacing the membrane with a genuine GE part is necessary.

Safety Warning:

Disconnect the dishwasher from the breaker panel before performing any repairs. Lockout/Tagout (LOTO) procedures must be followed to prevent accidental energization of the circuit. Be aware of potentially high voltage (120V AC) when working with electrical components.

Prevention:

Use a surge protector to protect the dishwasher from power surges. Avoid using harsh chemicals or abrasive cleaners on the control panel. Periodically clean around the buttons to prevent buildup of dirt and grime.

Expert Tip:

Some GE dishwashers have a service mode that can be accessed by pressing a specific sequence of buttons (e.g., Start-Select-Start-Select). This service mode may provide diagnostic information or allow you to clear the error code. Refer to the service manual for your specific model.

Frequently Asked Questions

•How do I access the service mode on my GE Profile dishwasher?

The service mode access varies by model. Generally, it involves a specific sequence of button presses, such as 'Start-Select-Start-Select' within a short timeframe. Consult the service manual for your exact model number to confirm the sequence.

•What is the voltage reading I should expect on the ribbon cable?

The ribbon cable carries low-voltage DC signals, typically around 5V DC. Use a multimeter to carefully measure the voltage between the various pins on the cable while the dishwasher is powered on (after taking safety precautions). Refer to the wiring diagram for your model to identify the correct pins.

•Where can I find the correct replacement control board for my GE Profile dishwasher?

You can find the correct replacement control board by searching online appliance parts retailers using your dishwasher's model number. Reputable retailers will have part look-up tools to ensure compatibility.

GE Profile Dishwasher 1H Display: Exiting the Settings Menu - Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the service mode on my GE Profile dishwasher?

•What is the voltage reading I should expect on the ribbon cable?

•Where can I find the correct replacement control board for my GE Profile dishwasher?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: