KitchenAid Dryer Error Code E3

E3 indicates a compatibility mismatch between the machine control electronics and the console electronics in the dryer. It is a software or hardware version conflict between the two control boards. This code only appears during Diagnostic Test mode and points to a situation where the installed components are not a matched set for the specific model.

No, a reset will not clear the E3 code. Because the error reflects an actual hardware or firmware incompatibility between installed components, the mismatch will be detected again each time Diagnostic Test mode is run. The underlying cause must be corrected by ensuring the correct matched components are installed.

The repair cost depends on which component is incorrect. A replacement console electronics board or machine control board typically ranges from roughly $75 to $250 or more depending on the specific part. If a technician is needed to diagnose and install the correct component, labor costs will add to that range. Getting the exact correct part number is critical to avoid repeating the same mismatch.

The first step is to compare the part numbers on the installed machine control board, console electronics board, and console housing against the Component Table for your model. Whichever component has a mismatched part number will need to be replaced with the correct one. This is a hardware compatibility issue and cannot be resolved through reprogramming or resets alone.

The E3 code only appears in Diagnostic Test mode and may not interrupt normal drying cycles. However, a mismatch between control boards can produce unpredictable behavior in cycle control and user interface functions. It is advisable to resolve the component mismatch before continued regular use to ensure the dryer operates as intended.