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Error code reference

Jenn-Air Cooktop Error Code Er 22

Defective keypad; control unit cuts off after 3.5 to 7.5 seconds due to short-circuit or discontinuation in the range of the keypad evaluation.

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What the Er 22 error code actually means

Your Jenn-Air cooktop is detecting a problem with its touch control panel, which is either shorting out internally or losing its electrical connection. Because of this, the cooktop shuts itself off within a few seconds as a safety precaution. The touch panel needs to be replaced to resolve this issue.

Diagnostic procedure

The full Er 22 procedure

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1
First diagnostic step
Disconnect power, replace the cooktop UI board, reassemble all parts and panels before operating, reconnect power.
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Most common causes of Er 22

Ranked by how often they cause this code
  1. 1Failed or shorted UI board
  2. 2Open circuit in the keypad evaluation circuit
  3. 3Moisture or liquid intrusion into the keypad
  4. 4Loose or damaged connector between keypad and control board

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Questions people ask about Er 22

What does Er 22 mean on a Jenn-Air cooktop?
Er 22 indicates that the cooktop control unit has detected a defective keypad condition, either a short-circuit or a break in continuity within the keypad evaluation circuit. As a protective response, the control unit cuts power to itself within 3.5 to 7.5 seconds of detecting the fault. The cooktop will not operate normally while this code is active. Replacing the UI board is the recommended repair.
Is it safe to use my Jenn-Air cooktop while it is showing Er 22?
No. The Er 22 fault causes the control unit to cut itself off within seconds, which means burners will not operate reliably or predictably. Attempting to use the cooktop in this condition is not safe. Disconnect power to the unit and avoid using it until the UI board has been replaced and the repair is complete.
How much does it cost to fix an Er 22 error on a Jenn-Air cooktop?
Repair costs will vary depending on the specific cooktop model and whether you hire a technician or perform the repair yourself. The UI board part itself typically ranges from around $80 to $250 or more depending on availability and supplier. If you use a professional appliance repair technician, labor charges will add to that cost, often bringing the total into the $150 to $400 range. Getting a quote from a local technician before committing to the repair is advisable.
Will resetting the power clear the Er 22 code on my Jenn-Air cooktop?
A power reset may temporarily clear the display, but the code will return within seconds if the underlying keypad fault is still present. Because the control unit shuts off within 3.5 to 7.5 seconds of detecting the fault, any reset is only a momentary workaround. The fault must be corrected by replacing the defective UI board for the error to be permanently resolved.
How do I fix the Er 22 error on a Jenn-Air cooktop?
The repair requires replacing the cooktop UI board. Start by disconnecting power at the breaker or unplugging the unit. Remove the necessary panels to access the UI board, disconnect the existing board, and install the replacement. Fully reassemble all panels and components before restoring power. Operating the cooktop with panels removed or partially reassembled creates a safety risk.

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