Dacor Oven Error Code C42

When your Dacor oven displays the error code C42 along with the message “E2 Checksum Failure on Control board,” it indicates a discrepancy between the calculated E2 checksum and the stored E2 checksum in the control board. The checksum serves as a method to ensure the integrity of data on the control board. In this case, the calculated checksum does not match the one stored in the system, triggering the error.

Possible Causes:

1. Control Board Malfunction: A malfunction within the control board may lead to errors in checksum calculations, resulting in a checksum failure.
2. Electrical Interference: External factors, such as electrical interference or power surges, could disrupt the normal functioning of the control board and lead to checksum failures.

Troubleshooting Steps:

1. Power Cycle the Oven:

   • Turn off the oven and unplug it from the power source.
   • Wait for at least 5 minutes to allow the control board to reset.
   • Plug the oven back in and turn it on to see if the error persists.

2. Check for Electrical Issues:

   • Ensure that the oven is connected to a stable power source.
   • Consider using a surge protector to safeguard the appliance from power fluctuations.

3. Professional Inspection:

   • If the error persists after power cycling and checking for electrical issues, it is advisable to seek professional assistance.
   • A certified technician can inspect the control board, perform diagnostics, and replace any faulty components if necessary.

It’s important to note that attempting to disassemble or repair the control board without proper expertise may lead to further damage. Professional assistance is recommended to accurately diagnose and address the root cause of the C42 error code on your Dacor oven.