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Error code reference

GE Cooktop Error Code Er31

One filter board not configured to work with the other filter board (36-in

GE codesGE cooktop codes

One filter board not configured to work with the other filter board (36-in. models only).

First step from the service manual

Press and hold timer up key. Press and release RF on/off key. Press and release LF key. Release timer up key. Allow display to scroll horizontal bars and beep. Replace filter board.

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

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What Er31 means on a GE cooktop

The Er31 error code on GE cooktops applies exclusively to 36-inch models and indicates a configuration mismatch between the two filter boards installed in the unit. These cooktops use two separate filter boards that must be programmed to recognize and communicate with each other. When one filter board is not configured to work in tandem with the other, the control system detects the incompatibility and triggers this fault code. This is a communication and configuration issue at the board level, not a wiring short or input failure.

The filter boards in GE 36-inch cooktops handle signal filtering and power management for the induction or radiant elements. Each board carries configuration data that identifies its role and pairing within the system. If one board is replaced without proper configuration, or if a board with mismatched firmware or settings is installed, the two boards will fail to establish correct communication. This mismatch is what the control system flags as Er31.

Diagnosing this code involves a specific key sequence: press and hold the timer up key, then press and release the RF on/off key, followed by pressing and releasing the LF key, and then releasing the timer up key. This sequence triggers a diagnostic mode where the display scrolls horizontal bars and the unit beeps, confirming the configuration fault. The resolution is replacement of the filter board that is incorrectly configured or incompatible with its paired board.

Source: manufacturer service documentation.

Common causes of Er31

  1. 01

    Replacement filter board installed without proper configuration

    Part replacement

    If a filter board was recently replaced, the new board may not be configured to pair with the existing board in the cooktop. This is the most common trigger for Er31 on 36-inch models.

  2. 02

    Mismatched filter boards from different model variants

    Part replacement

    Installing a filter board intended for a different variant or version of the 36-inch cooktop can cause a configuration mismatch. The boards must be compatible with each other to communicate correctly.

  3. 03

    Filter board with corrupted or incorrect configuration data

    Part replacement

    A filter board can have its configuration data corrupted due to a power surge or internal failure, causing it to no longer identify itself correctly to the paired board. Running the diagnostic key sequence will confirm whether this is the issue.

  4. 04

    Failed or damaged filter board

    Part replacement

    A filter board that has partially failed may no longer transmit the configuration handshake signal required by the other board. Physical damage, heat stress, or component failure on the board can cause this condition.

See the test procedure for each cause

Frequently asked questions about Er31

What does Er31 mean on a GE cooktop?
Er31 indicates that one of the two filter boards in the cooktop is not configured to work with the other filter board. This code only appears on 36-inch GE cooktop models. It points to a configuration mismatch between the two boards rather than a wiring or sensor fault. Resolving it requires replacing the incompatible or misconfigured filter board.
Can I fix Er31 myself without calling a technician?
The diagnostic step for Er31 involves a specific key sequence on the control panel that you can perform yourself to confirm the fault. However, the resolution requires replacing a filter board, which involves working with internal cooktop components and should be handled by someone comfortable with appliance repair. If you are not experienced with disassembling cooktops, a qualified technician is the safer option.
Is it safe to use my GE cooktop while it shows Er31?
It is not recommended to continue using the cooktop while Er31 is active. The error indicates the filter boards are not communicating correctly, which means the control system cannot fully manage power and signal filtering for the cooking elements. Operating the unit in this state could lead to unpredictable behavior or further component damage.
Will resetting the cooktop clear the Er31 error code?
A simple power reset will not clear Er31 because the fault is caused by a physical configuration mismatch between the two filter boards, not a temporary software glitch. The error will return each time the cooktop powers on until the incompatible filter board is replaced with a correctly configured one.
How much does it cost to repair an Er31 error on a GE cooktop?
Repair costs for Er31 typically depend on the price of the replacement filter board and labor. Filter board parts for GE cooktops generally range from around 80 to 250 dollars depending on availability and the specific model. Adding professional labor, the total repair cost commonly falls somewhere in the range of 150 to 400 dollars, though prices vary by region and service provider.

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