Admiral Cooktop Error Code Er03: Continual Key... | appliancefaults.com

Technical Background:

error code Er03 on Admiral cooktops typically indicates a problem with the touch control panel or the communication between the touch control panel and the main control unit (MCU). The MCU detects a continuous or stuck key activation signal, triggering the error. This signal is usually a low voltage DC signal, typically 5V DC.

Symptoms:

The Admiral cooktop displays error code Er03 and may exhibit erratic behavior such as beeping or activating multiple functions without user input. The cooktop may become unresponsive to user commands.

Possible Causes:

Spilled liquids on the cooktop surface.
Debris or food particles lodged around the control buttons.
Faulty touch control panel.
Damaged ribbon cable connecting the control panel to the main control board.
Main control board failure.

Solution:

1

Disconnect power to the cooktop at the breaker panel (240V AC). Verify power is off with a multimeter.
2

Carefully clean the cooktop surface with a non-abrasive cleaner and a soft cloth. Ensure no residue remains around the touch controls.
3

Inspect the touch control panel for any visible damage or cracks.
4

If cleaning doesn't resolve the issue, disconnect the ribbon cable connecting the touch control panel to the main control board. Check for corrosion or damage. Clean the connector pins with electrical contact cleaner.
5

Reconnect the ribbon cable securely. Restore power to the cooktop and observe if the error code persists.
6

If the error persists, the touch control panel or the main control board may be faulty. Replacing the touch control panel is often the next step. Note the part number from the old control panel.
7

If the touch control panel replacement doesn’t fix the issue, the main control board needs replacing.

Safety Warning:

Disconnect power to the cooktop at the breaker panel before performing any troubleshooting or repairs. Lockout/Tagout (LOTO) procedures should be followed to prevent accidental re-energization. The cooktop operates on 240V AC, which can cause serious injury or death.

Prevention:

Regularly clean the cooktop surface after each use to prevent food and liquid buildup. Avoid using abrasive cleaners that could damage the touch control panel. Use a cooktop cleaner designed for ceramic glass cooktops. Clean spills immediately.

Expert Tip:

Some Admiral cooktops have a service mode that allows you to test the individual keys on the touch control panel. The sequence to enter service mode varies by model, but it typically involves pressing and holding a specific combination of keys for several seconds. Consult the service manual for the correct procedure for your specific model.

Frequently Asked Questions

•How do I identify the correct replacement touch control panel for my cooktop?

Locate the model number of your cooktop. The model number is usually found on a sticker on the underside of the cooktop or on the frame. Use the model number to search for the correct replacement touch control panel online or at an appliance parts retailer. You can also cross-reference the part number located on the existing control panel.

•What tools are needed to replace the touch control panel?

You will typically need a Phillips head screwdriver, a flat head screwdriver, a 1/4-inch nut driver, and possibly a putty knife or plastic pry tool to release the cooktop from the countertop. Wear gloves and safety glasses for protection.

•How do I properly clean the ribbon cable connector?

Disconnect the power to the appliance first. Use electrical contact cleaner specifically designed for electronics. Spray a small amount of cleaner onto the connector pins and then gently wipe with a clean, lint-free cloth. Ensure the connector is completely dry before reconnecting.

Admiral Cooktop Error Code Er03: Continual Key Activation Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I identify the correct replacement touch control panel for my cooktop?

•What tools are needed to replace the touch control panel?

•How do I properly clean the ribbon cable connector?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: