BKI Oven Error Code PROB

PROB on a BKI oven means the controller has detected a problem with the temperature probe or thermocouple connection. The oven monitors its temperature sensor continuously, and when it detects a damaged probe or a loose connection, it displays this fault code. The oven cannot confirm accurate internal temperatures while this fault is active, so normal operation is interrupted until the issue is resolved.

No, continuing to operate the oven while the PROB fault is active is not advisable. The controller cannot accurately monitor cavity temperature without a functional probe, meaning the oven could overheat or fail to reach proper cooking temperatures. Both outcomes pose food safety risks in a commercial setting. The oven should be taken out of service until the fault is diagnosed and repaired.

Repair costs vary depending on what component has failed. A probe replacement is generally less expensive, with parts and labor typically ranging from around $100 to $300 depending on your service provider and location. If the control board input circuit has failed, costs can be significantly higher, potentially ranging from $300 to $700 or more. Getting a diagnosis from an authorized BKI service agent will give you a more accurate estimate for your specific situation.

BKI directs all corrective action for the PROB fault to an authorized BKI service agent. While a loose connector is conceptually simple to address, properly diagnosing whether the fault lies in the probe, the wiring, or the control board requires technical testing. Attempting repairs without proper training on commercial cooking equipment carries both safety and liability risks, so professional service is strongly recommended.

A power cycle or reset may temporarily clear the PROB code, but the fault will return if the underlying problem with the probe or connection has not been corrected. The controller will detect the same abnormal sensor signal as soon as it resumes monitoring. A reset is not a fix and should not be used as a workaround in a commercial food service environment.