GE Dishwasher 1H Display Error: Bypassing Delay Hours... | appliancefaults.com

Technical Background:

The main control unit (MCU) receives signals from the control panel via a ribbon cable. When the delay start button is pressed, it sends a voltage signal to the MCU, initiating the delay cycle. A faulty button, cable, or corrupted software can disrupt this voltage path, causing the 1H error.

Symptoms:

The dishwasher displays error code 1H. The delay start button may be unresponsive, stuck, or activating the delay cycle unintentionally. The dishwasher may start at unexpected times due to the faulty delay setting.

Possible Causes:

Faulty delay start button on the control panel.
Damaged ribbon cable connecting the control panel to the main control board.
Corrupted software in the main control board.
Loose wire connections at the control panel or main control board.
Water damage to the control panel affecting button functionality.
A short circuit in the control panel membrane switch.

Solution:

1

Disconnect power to the dishwasher by turning off the breaker at the breaker panel.
2

Open the dishwasher door and remove the inner door panel screws using a 1/4-inch nut driver.
3

Carefully detach the control panel, noting the wire connections and ribbon cable.
4

Inspect the delay start button for visible damage or sticking. Clean with isopropyl alcohol and a cotton swab.
5

Check the ribbon cable for tears or crimps. If damaged, replace the ribbon cable.
6

Reconnect the ribbon cable and wire connections to the control panel and main control board.
7

Restore power to the dishwasher and test the delay start button functionality. If the problem persists, the control board might need replacement.

Safety Warning:

Disconnect power to the dishwasher at the breaker panel before attempting any repairs. Use Lock-Out/Tag-Out (LOTO) procedures to prevent accidental energizing of the circuit. High voltage components are present; exercise caution.

Prevention:

Avoid excessive moisture around the control panel. Do not use abrasive cleaners on the control panel. Periodically inspect the door seal for leaks that could damage the control panel.

Expert Tip:

Enter service mode by pressing and holding the Start and Cycle Select buttons simultaneously for 5 seconds. This allows you to run diagnostics and test individual components, including the delay start button circuit.

Frequently Asked Questions

•How do I test the delay start button with a multimeter?

Set your multimeter to continuity mode. With the dishwasher unplugged and the control panel removed, place the probes on the terminals of the delay start button. Press the button; you should see continuity when pressed and no continuity when released.

•Where can I find a replacement ribbon cable for my GE dishwasher?

Replacement ribbon cables can be found at appliance parts retailers, both online and in local stores. Be sure to have the model number of your dishwasher handy to ensure you get the correct part.

•How much does it typically cost to replace the main control board?

The cost of a main control board can vary widely depending on the model of your dishwasher, but typically ranges from $150 to $300. Labor costs for installation can add another $100 to $200.

GE Dishwasher 1H Display Error: Bypassing Delay Hours Button

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I test the delay start button with a multimeter?

•Where can I find a replacement ribbon cable for my GE dishwasher?

•How much does it typically cost to replace the main control board?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: