The reading in two sentences
The short reading of F22 on a KitchenAid cooktop: there is an internal communication error on the touch control module. A module reporting its own internal error should not be cooked on; wait for the reset to prove itself first. Most of what follows is diagnosis rather than repair, and the repair end of it is a technician job.
Error codes
Reference| Code | Meaning |
|---|---|
| F22 | There is an internal communication error on the touch control module . |
What else is happening when this shows
- The panel lights but selections do nothing — The module has power and is not completing its own internal checks.
- The code appears at power-up before anything is selected — The two boards greet each other at power-up, and this code is that greeting failing.
- NEAR MISS — nothing lights at all — That is a supply fault to the panel rather than a communication fault, and it is checked differently.
What triggers F22, most likely first
- A latched error from a supply disturbance — It goes first because it is both common and free to eliminate: a blip during power-up leaves the module reporting an internal error that a full power cycle clears for good.
- Heat and steam at the module under the glass — The module sits under a cooking surface, so condensation and heat at its connections produce internal errors that come and go with use.
- A failed main control board — Last, and the reason the order matters: it is the most expensive part on the list and the least likely cause of a silent link.
The order to work through
- Cut power at the breaker for a full minute, then watch the power-up — Stored and live errors behave differently from this point on.
- Note exactly when the code appears — At power-up, on a command, or mid-cycle — each answer points at a different part of the link.
- Check whether the panel still responds to touch — A responsive panel that changes nothing narrows the fault to the link and the far board.
- Body: Clear the stored fault before inspecting anything — half of these codes are a handshake that failed once, and a power cycle tells you which half you are in.
The reset and the checks that follow it
- Leave the cooktop off and dry for an hour, isolate at the breaker for a minute, then restore power and watch the power-up — Two free variables at once, both common causes, neither needing the appliance opened.
About 60 min
- Let the appliance dry out before judging the fault — If the code follows steam or heavy use, leave it powered off until it is dry and try again later.
About 60 min
- Record what the panel does and what the machine does not — Two lists, side by side. A technician can price the job from that note without guessing which board to bring.
About 10 min
- STOP HERE — the harness and the connectors are behind a panel — Reseating a connector means removing a panel and working next to live terminals. That is service work.
Before a panel comes off
Safety
Switch the cooktop off at its circuit breaker before anything is opened; it carries a heavy load and stored charge remains after the power is off. Let the glass cool on its own. On a gas model, never switch anything on or off if you smell gas: leave and call the gas utility from outside.
Where an owner check ends
Call once a full power cycle has not cleared the code, or the code returns within the same day.
Other codes on a KitchenAid cooktop
What is deliberately not here
Treat this as the general KitchenAid cooktop reading. It stops short of anything model-specific — part numbers, harness colours, connector layouts and service-mode entry — because those differ by family and a technician takes them from the rating plate rather than from a code. A family- or model-specific page, where one exists, is linked from the code index below and is the closer answer.
Links: - [KitchenAid cooktop error codes](/blog/kitchenaid-cooktop-error-codes)
Next steps
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
