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Error code reference

KitchenAid Cooktop Error Code Er32

A touch control of a 2-zone cooktop is connected to a 4-zone cooktop, or vice versa

KitchenAid codesKitchenAid cooktop codes

A touch control of a 2-zone cooktop is connected to a 4-zone cooktop, or vice versa. Wrong replacement part installed.

First step from the service manual

Check the replacement part.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What Er32 means on a KitchenAid cooktop

The Er32 error code on a KitchenAid cooktop indicates a mismatch between the touch control board and the cooktop unit it is installed on. Specifically, the system has detected that a touch control module designed for a 2-zone cooktop is connected to a 4-zone cooktop, or that a 4-zone touch control has been installed on a 2-zone cooktop. The touch control board communicates zone configuration data to the main control system, and when that data does not match the expected zone count for the cooktop model, the unit flags this incompatibility as Er32 and prevents normal operation.

This error almost always results from a service or repair event where an incorrect replacement part was installed. Touch control boards for KitchenAid induction or radiant cooktops are model-specific, and boards that appear physically similar may not share the same zone configuration firmware or wiring layout. Installing a part sourced from the wrong model, or substituting a board from a different cooktop variant, will trigger this fault. The cooktop cannot resolve this error through a reset or recalibration, because the mismatch is a fundamental hardware incompatibility rather than a transient sensor or communication fault.

Diagnosing Er32 begins with verifying that the installed touch control board matches the exact part number specified for the cooktop model. The zone count of the replacement board must correspond directly to the zone count of the cooktop chassis it serves. If the wrong board was installed, the correct part must be sourced and installed to clear the fault.

Source: manufacturer service documentation.

Common causes of Er32

  1. 01

    Incorrect replacement touch control board installed

    Part replacement

    The most common cause is a touch control board sourced from a different cooktop variant being installed during a repair. The board's zone configuration must match the cooktop's zone count exactly, even if the boards look identical externally.

  2. 02

    Part ordered by wrong model number

    Part replacement

    If the replacement part was ordered using an incorrect or similar model number, a board intended for a different zone count may have been shipped and installed. Cross-referencing the part number on the original board against the replacement is the fastest way to confirm this.

  3. 03

    Substituted part from a different cooktop unit

    Part replacement

    In some cases, a touch control board may have been pulled from a donor appliance of a different zone configuration and installed as a substitute. This creates the same mismatch condition even if the board is genuine and functional.

  4. 04

    Incorrect board installed at factory or during prior service

    Part replacement

    Though less common, the wrong board could have been installed at an earlier service visit and only recently flagged. Reviewing the cooktop's service history and confirming the current board's part number against the unit's model specifications can identify this.

See the test procedure for each cause

Frequently asked questions about Er32

What does Er32 mean on a KitchenAid cooktop?
Er32 means the touch control board connected to the cooktop is designed for a different zone configuration than the unit it is installed on. This happens when a 2-zone touch control is paired with a 4-zone cooktop, or a 4-zone control is paired with a 2-zone cooktop. The error indicates a hardware mismatch, not a sensor fault, and the cooktop will not operate normally until the correct board is installed.
Will resetting the cooktop clear the Er32 error?
No, resetting the cooktop will not clear Er32. This error reflects a fundamental incompatibility between the touch control board and the cooktop's zone configuration, so the fault will return immediately after any reset attempt. The only way to resolve it is to install the correct replacement touch control board that matches the cooktop's zone count.
How do I fix Er32 on a KitchenAid cooktop?
Start by identifying the exact model number of the cooktop and locating the part number printed on the currently installed touch control board. Compare that part number to the correct specification for the model to confirm a mismatch. If the wrong board is installed, the correct zone-matched touch control board must be ordered and installed to resolve the error.
Is it safe to use my KitchenAid cooktop while Er32 is displayed?
The cooktop is not intended to operate normally while Er32 is active, as the control mismatch prevents the unit from functioning as designed. Attempting to use the cooktop in this state is not recommended, since the touch controls may not correspond correctly to the heating zones. The error should be resolved by installing the correct replacement part before resuming use.
How much does it cost to fix a KitchenAid cooktop Er32 error?
The primary cost involved is the replacement touch control board, which typically ranges from roughly $80 to $250 or more depending on the specific model and zone configuration. If a technician is hired to install the part, labor costs commonly range from $75 to $150 per hour. In many cases, if the wrong part was recently purchased, the supplier may accept a return or exchange, which can reduce out-of-pocket expense.

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