Bosch Oven Error Code F125

F125 indicates a circuit problem with the Cancel key, or the Upper Cancel key on double-oven models. The oven control has detected that the Cancel key signal is not reading correctly. This is typically caused by a loose connector, a worn keyboard, or a faulty display board. The first step is to check the connections at the keyboard connector J1 and the display board connector P5.

A power reset, such as turning off the oven at the circuit breaker for several minutes, may temporarily clear the F125 code. However, if the underlying cause is a bad connection, a failed keyboard, or a faulty display board, the code will return. A reset is useful for confirming whether the fault is intermittent, but it is not a permanent fix.

If only the connector needs reseating, there may be no parts cost at all, though a service call can run anywhere from $75 to $150 depending on your area. If the membrane keyboard needs replacement, parts typically range from $50 to $150. A display board replacement is the most expensive scenario, with parts generally ranging from $100 to $300, plus labor.

In many cases, yes. Start by disconnecting power to the oven and inspecting the connector at J1 on the keyboard and P5 on the display board, then firmly reseat both connections. If the error returns after restoring power, the membrane keyboard or display board likely needs to be replaced, which is a more involved repair that requires disassembling the control panel.

It is generally not recommended to continue using the oven while an active fault code is present. The F125 fault indicates the control cannot properly read the Cancel key, which means you may not be able to reliably cancel a cooking cycle or bake function. Disconnect power and address the fault before resuming use.