Bosch Range Error Code F154

F154 means the power board inside your Bosch range has been detected as running too hot. The range's control system monitors the board's temperature and throws this fault when it exceeds a safe limit. The range will typically shut down or restrict operation until the board cools and the fault is cleared.

Start by turning the range off and letting it cool completely. Check that the range has proper clearance on all sides per the installation manual. After cooling, restore power and see if the fault clears. If F154 returns quickly, inspect the internal cooling fan for obstructions or failure. A fan replacement is a manageable repair for someone comfortable with appliance work. If the fan checks out, the power board itself may need replacement, which is a job most homeowners will want a qualified technician to handle.

Sometimes, yes. F154 is a thermal protection fault, so if the board cools sufficiently, the code may clear and the range may resume normal operation. However, if the underlying cause, such as a failed fan or a defective board component, has not been addressed, the fault will return. A fault that clears on cooling but comes back within a normal cooking session points to a component that needs replacement rather than a one-time event.

No. You should not continue using the range while F154 is active. The fault indicates the power board has already overheated, and continuing to run the appliance risks permanent damage to the board or, in a worst case, an electrical fault. Power the range off at the breaker, let it cool for at least 30 minutes, then investigate the cause before resuming use.

If the cause is a failed cooling fan, expect parts in the range of $30 to $80 and one to two hours of labor if you hire a technician, putting total cost around $150 to $250. If the power board itself needs replacement, Bosch power boards typically run $200 to $400 for the part alone, with labor adding another $100 to $200, so total repair cost can reach $300 to $600. Getting a firm quote before authorizing board replacement is advisable given the cost relative to the range's age and value.