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Error code reference

Frigidaire Cooktop Error Code E22

Timer key sensor defective.

Frigidaire codesFrigidaire cooktop codes

Timer key sensor defective.

First step from the service manual

Test cables and connections on main power/right front cook zone touch control.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What E22 means on a Frigidaire cooktop

The E22 error code on a Frigidaire cooktop indicates that the control board has detected a fault in the timer key sensor, which is part of the touch control interface for the main power or right front cook zone. This sensor is embedded within the capacitive touch panel and communicates input signals to the main control board. When the board cannot read a valid signal from the timer key sensor, or when it detects an out-of-range or erratic signal, it logs E22 and typically disables the affected zone or the entire cooktop as a safety precaution.

The most common root cause is a failure in the wiring harness or connector that links the touch control assembly to the main control board. Loose, corroded, or damaged ribbon cables can interrupt the signal path and cause the board to misinterpret the sensor state. Spilled liquids or grease contamination on the touch panel can also cause false capacitive readings, leading to a defective sensor reading. In some cases, the touch control module itself has failed internally and must be replaced.

Diagnosis should begin with a thorough inspection of all cables and connections between the touch control panel and the main control board, paying particular attention to the right front cook zone circuit. Check ribbon cable connectors for bent pins, corrosion, or incomplete seating. If the wiring is intact and connections are secure, the fault likely lies in the touch control assembly or the main control board itself, either of which may require component-level testing or replacement.

Source: manufacturer service documentation.

Common causes of E22

  1. 01

    Loose or disconnected ribbon cable

    Wiring / connection

    The ribbon cable connecting the touch control panel to the main control board may have come loose or partially disconnected. Check all connectors for secure seating and inspect for bent or broken pins.

  2. 02

    Corroded or damaged wiring harness

    Part replacement

    Corrosion or physical damage along the wiring harness between the touch panel and the control board can interrupt the sensor signal. Look for discoloration, fraying, or oxidation at connector terminals.

  3. 03

    Liquid or grease contamination on touch panel

    Wiring / connection

    Spills or grease buildup on the capacitive touch surface can create false readings that register as a defective sensor. Clean the touch panel surface thoroughly and allow it to dry completely before testing.

  4. 04

    Failed touch control assembly

    Part replacement

    The touch control module for the right front cook zone or main power function may have failed internally. If wiring and connections test properly, the touch panel assembly itself likely needs replacement.

  5. 05

    Faulty main control board

    Part replacement

    If the touch panel and all wiring check out without issues, the main control board may be misreading or failing to process the timer key sensor signal. This is the least common cause and should be diagnosed last.

See the test procedure for each cause

Frequently asked questions about E22

What does E22 mean on a Frigidaire cooktop?
E22 on a Frigidaire cooktop means the control system has detected a defect in the timer key sensor, which is part of the touch control interface. The board cannot receive a valid signal from that sensor, so it triggers the error to prevent unsafe operation. The fault is typically located in the wiring connections or the touch control panel for the right front cook zone.
Can I fix the E22 error myself?
Some causes of E22 are DIY-friendly, such as reseating a loose ribbon cable or cleaning contamination off the touch panel. Start by disconnecting power, then inspect and firmly reseat all cable connections between the touch panel and the main control board. If the error returns after these steps, the touch control assembly or control board may need professional replacement.
Will resetting the cooktop clear the E22 error?
A power reset by turning off the circuit breaker for 30 to 60 seconds may temporarily clear the E22 code, but it will return if the underlying fault is not corrected. If the sensor or wiring connection is genuinely defective, the error will reappear as soon as the cooktop powers up and runs its diagnostic checks. A reset is useful for confirming whether the fault is intermittent or persistent.
Is it safe to use the cooktop while E22 is displayed?
It is not recommended to operate the cooktop while E22 is active. The error indicates a sensor fault that the control board cannot resolve, and the cooktop may have already disabled one or more zones as a safety measure. Continuing to use it could mask a wiring issue that poses a risk of unintended operation or further component damage.
How much does it cost to repair an E22 error on a Frigidaire cooktop?
Repair costs depend on the failed component. If only a wiring harness or connector needs replacement, parts and labor may range from around $75 to $150. A touch control panel assembly typically costs between $100 and $250 in parts, plus labor. Main control board replacement tends to be the most expensive option, often ranging from $150 to $350 or more for parts and professional installation.

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