Bosch Oven Error Code E123

E123 means the meat probe sensor in Cavity 1 is reading a temperature below the minimum allowable limit. The oven responds by stopping the heating cycle until the issue is resolved or the probe is removed. This is a protective function built into the control system to prevent inaccurate cooking based on a bad sensor reading. The most common cause is using the probe in frozen food, though a damaged probe or loose connection can produce the same error.

The oven suspends heating when E123 is active, so cooking is not possible in that state. Removing the meat probe will typically clear the condition and allow the oven to operate normally again. If the error appears without a probe installed, do not continue using the oven until the wiring and probe receptacle have been inspected, as an underlying fault in the probe circuit should be diagnosed before further use.

If the issue is simply a matter of probe placement in cold food, there is no repair cost at all. Replacing a faulty meat probe typically costs between $30 and $80 for the part, depending on the specific model. If the problem involves internal wiring or the probe receptacle, a service technician visit will add labor costs generally ranging from $100 to $200 or more depending on the complexity of the repair and your location.

In many cases, yes. Start by removing the meat probe from the oven entirely, since the oven will typically resume normal heating once the probe is disconnected. If you triggered the error by inserting the probe into frozen food, simply thaw the food before using the probe again. If the error reappears with a different food item, check that the probe cable is undamaged and fully seated in the receptacle before concluding the probe itself needs replacement.

A power reset may temporarily clear the error code, but if the underlying cause is still present, such as a damaged probe or faulty wiring connection, the fault will return once the probe is used again. The most reliable way to clear E123 is to remove the probe, address the root cause, and confirm normal probe resistance before reinstalling it.