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Error code reference

GE Range Error Code ER 22

MTwisT Control fault

GE codesGE range codes

MTwisT Control fault: Keyboard error.

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What ER 22 means on a GE range

The ER 22 error code on a GE range indicates a fault within the MTwisT control system, specifically identified as a keyboard error. The MTwisT control is an integrated touch or membrane-based control interface that manages user input for oven and cooktop functions. When the control board detects an anomaly in the keyboard circuit, such as a stuck key, a shorted membrane switch, or a failed signal from the keypad to the main control board, it triggers the ER 22 code to alert the user and technician to the fault.

The keyboard in this context refers to the membrane keypad or touchpad assembly that sits on the front control panel. This assembly sends discrete electrical signals to the main control board for each button press. If a key signal is continuously active, if the communication between the keypad and the control board is disrupted, or if there is moisture or physical damage affecting the membrane layer, the board interprets this as a keyboard fault. Corrosion on the ribbon cable connector, delamination of the membrane layers, or a cracked control board trace can all contribute to this condition.

Diagnosing ER 22 typically involves inspecting the keypad ribbon cable connection at the control board for signs of corrosion or looseness, checking the membrane keypad surface for physical damage or moisture intrusion, and evaluating whether the control board itself has sustained damage. In many cases, the fault is isolated to the keypad assembly rather than the main board, but both components should be assessed before replacement.

Source: manufacturer service documentation.

Common causes of ER 22

  1. 01

    Faulty or damaged membrane keypad

    Part replacement

    The membrane keypad can delaminate, crack, or develop internal short circuits over time, causing one or more keys to register as permanently pressed. Inspect the keypad surface for bubbling, cracks, or discoloration.

  2. 02

    Moisture or grease intrusion in the keypad

    Part replacement

    Liquids or grease that seep beneath the keypad membrane can bridge key contacts and trigger a continuous signal. Look for staining, residue, or fogging visible through or around the keypad surface.

  3. 03

    Loose or corroded ribbon cable connection

    Wiring / connection

    The ribbon cable connecting the keypad to the main control board can work loose or develop corrosion at the connector, disrupting signal communication. Disconnecting and reseating the ribbon cable, after confirming no power is present, may resolve this if corrosion is not severe.

  4. 04

    Failed main control board

    Part replacement

    If the keyboard circuit on the main control board itself is damaged, such as from a power surge or cracked PCB trace, the board may incorrectly report a keyboard fault even with a functioning keypad. This typically requires board replacement after the keypad has been ruled out.

  5. 05

    Stuck or mechanically jammed key

    Wiring / connection

    Physical debris or mechanical deformation around a key can cause it to remain in a depressed position, sending a continuous input signal to the control board. Carefully inspect the panel for any visibly depressed or obstructed buttons.

See the test procedure for each cause

Frequently asked questions about ER 22

What does ER 22 mean on a GE range?
ER 22 indicates a keyboard error within the MTwisT control system on your GE range. The control board has detected a fault in the keypad circuit, which can include a stuck key, a shorted membrane switch, or a loss of communication between the keypad and the main control board. The range displays this code to flag the issue and prevent normal operation until it is resolved.
Can I fix the ER 22 error on my GE range myself?
Some causes of ER 22 are accessible to a knowledgeable DIYer, such as reseating a loose ribbon cable or cleaning moisture from around the keypad. However, replacing the membrane keypad assembly or the main control board requires disconnecting power safely and working with internal components. If you are not comfortable with appliance disassembly, a qualified technician is recommended.
Will resetting the range clear the ER 22 error code?
Disconnecting the range from power for several minutes and then restoring power may temporarily clear the ER 22 code if the fault was caused by a transient signal error. However, if the underlying cause is a damaged keypad, corroded connector, or failed control board, the error will return. A reset should be treated as a first step in diagnosis, not a permanent fix.
Is it safe to use my GE range while ER 22 is displayed?
It is generally not advisable to operate the range while an active keyboard fault is present. A malfunctioning keypad could prevent you from controlling the appliance reliably or from canceling a cooking cycle as expected. Discontinue use and address the fault before resuming normal operation.
How much does it cost to repair the ER 22 error on a GE range?
Repair costs depend on which component is at fault. A replacement membrane keypad assembly typically ranges from around $30 to $120 in parts, while a new main control board can cost between $80 and $300 or more depending on the model. Adding professional labor, total repair costs generally fall between $100 and $450, though this varies by region and service provider.

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