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Error code reference

GE Cooktop Error Code Er47

Bad communication in the ribbon cable between touch board and filter board.

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Bad communication in the ribbon cable between touch board and filter board.

First step from the service manual

Visually check ribbon cable connection from touch board to filter board. 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 Er47 means on a GE cooktop

Er47 on a GE cooktop indicates a communication failure between the touch board and the filter board via the ribbon cable that connects them. The touch board handles user input from the control surface, while the filter board processes and filters electrical signals before passing commands to the main control system. These two boards depend on a continuous, stable data link through the ribbon cable. When the cooktop's internal diagnostics detect that this communication has broken down or is producing corrupted signals, it triggers Er47 and typically disables cooktop operation as a safety measure.

The ribbon cable itself is a flat, multi-conductor flexible connector that is vulnerable to physical damage, improper seating, and connector corrosion. Even a slightly loose connector at either end of the cable can interrupt signal continuity enough to generate this fault. In some cases, the cable may appear visually intact but have internal conductor breaks caused by repeated flexing or pinching during installation or prior service work.

If the ribbon cable checks out as properly seated and undamaged, the fault source shifts to the filter board itself. A failed filter board can generate the same communication error because the touch board receives no valid response from the other end of the link. For this reason, the standard diagnostic approach is to inspect the ribbon cable connection first, then replace the filter board if the cable is not the cause.

Source: manufacturer service documentation.

Common causes of Er47

  1. 01

    Loose ribbon cable connection

    Wiring / connection

    The ribbon cable may not be fully seated in its connector at either the touch board or filter board end. Check both connectors for complete engagement and reseat the cable firmly.

  2. 02

    Damaged or kinked ribbon cable

    Part replacement

    The flat ribbon cable can develop internal breaks from pinching, sharp bends, or physical damage. Inspect the full length of the cable for visible creases, tears, or worn spots.

  3. 03

    Failed filter board

    Part replacement

    If the ribbon cable is intact and properly connected, the filter board itself may have failed and is no longer able to communicate with the touch board. Replacing the filter board is the next step in the diagnostic process.

  4. 04

    Corroded or contaminated ribbon cable connectors

    Wiring / connection

    Grease, moisture, or oxidation on the ribbon cable contacts or connector sockets can cause intermittent or complete signal loss. Inspect the connector contacts for discoloration or residue.

  5. 05

    Failed touch board

    Part replacement

    Less commonly, the touch board may be the source of the communication failure rather than the cable or filter board. This is typically considered after the cable and filter board have been inspected or replaced.

See the test procedure for each cause

Frequently asked questions about Er47

What does Er47 mean on a GE cooktop?
Er47 indicates a bad communication signal between the touch board and the filter board through the ribbon cable that connects them. The cooktop's control system detected that data is not passing correctly between these two components. This fault will typically prevent normal cooktop operation until the issue is resolved.
Can I fix Er47 on my GE cooktop myself?
Some cases of Er47 can be resolved without replacing parts by reseating the ribbon cable connecting the touch board to the filter board. This requires accessing the cooktop's internal components, so comfort with basic appliance disassembly is needed. If reseating the cable does not clear the fault, the filter board will likely need to be replaced, which is a more involved repair.
Is it safe to use my GE cooktop while Er47 is displayed?
You should not attempt to use the cooktop while Er47 is active. The error indicates a breakdown in the internal control communication, which means the cooktop may not respond to commands correctly or at all. Attempting to operate it in this state is not recommended until the fault is diagnosed and repaired.
Will resetting the cooktop clear the Er47 error?
A power reset by turning off the circuit breaker for 30 to 60 seconds may temporarily clear the error if the fault is intermittent, but it will return if the underlying issue with the ribbon cable or filter board is not corrected. A reset is not a fix and should only be used as part of the diagnostic process to confirm whether the fault is consistent.
How much does it cost to repair a GE cooktop showing Er47?
If only the ribbon cable needs to be replaced or reseated, costs are minimal, generally in the range of a few dollars to around $20 to $40 for a replacement cable if the original is damaged. Filter board replacement typically costs between $80 and $200 or more for the part depending on the model, plus labor if a technician performs the repair. Getting a diagnostic visit from a qualified technician usually runs between $75 and $150 before parts.

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