Viking Oven Error Code KEYBOARD ERROR

The KEYBOARD ERROR code means the main control board has detected no communication from the keyboard assembly. The P3 connector on the control board is the designated interface point between these two components. When the connection is broken or interrupted for any reason, the oven displays this error. The fault can originate from the connector, the wiring harness, the keyboard, or in rare cases, the control board itself.

Power cycling the oven by turning off the circuit breaker for 60 seconds and then restoring power may temporarily clear the error if a brief communication glitch caused it. However, if the underlying cause is a loose connector, damaged harness, or failed component, the error will return. A reset alone is not a fix and should be followed by a proper inspection of the P3 connector and wiring.

Repair costs vary depending on the root cause. If only a connector needs reseating or cleaning, service call fees are typically the main expense, generally in the range of $75 to $150. A replacement keyboard membrane or keypad assembly typically adds $100 to $300 in parts. A failed main control board is the most expensive scenario, with parts alone often ranging from $200 to $500 or more depending on the specific model.

A knowledgeable DIYer can handle the initial diagnostic steps, which involve inspecting and reseating the P3 connector on the main control board and checking the wiring harness for visible damage. If the connector is simply loose, reseating it may clear the error without any parts or professional service. However, if the keyboard membrane or main control board needs replacement, those repairs are more involved and may warrant a qualified technician.

Operating the oven with an active KEYBOARD ERROR is not recommended. Because the keyboard and control board cannot communicate, the oven may not respond to input commands reliably, and you may lose the ability to control cooking functions or safely cancel an operation. It is best to leave the oven off until the connection issue has been diagnosed and resolved.