Bosch Washer Error Code F:23

F:23 means the Bosch washer's Aqua Stop flood protection system has been triggered by water detected in the base pan beneath the machine. A float switch in the base tray rises when water is present and signals the control board to stop operation. This is typically caused by an internal water leak, though a faulty switch or wiring issue can also produce this code. The washer will not run again until the root cause is resolved and the base pan is dry.

No, you should not attempt to run the washer while F:23 is active. The error indicates water is or was present in the base of the machine, which poses a risk of further water damage to your home and potential electrical hazards. The Aqua Stop system is specifically designed to halt operation in this situation, and bypassing it is not advised.

Repair costs vary depending on the root cause. If the fix involves only drying the base pan and tightening a loose hose connection, the cost may be minimal. Replacing a door boot seal typically falls in the range of $100 to $250 including parts and labor. A failed pump, inlet valve, or Aqua Stop switch assembly with professional installation could run $150 to $400 or more depending on parts pricing and local labor rates.

Some steps can be handled without a technician, such as drying out the base pan, inspecting visible hose connections for leaks, and checking the float switch for debris or obstruction. However, if the source is a torn door boot seal, a cracked internal hose, or a failed component like the inlet valve or pump, replacement parts and moderate disassembly skills will be required. If you are not comfortable working inside the appliance, a qualified repair technician is recommended.

A simple power reset will not permanently clear F:23 if water remains in the base pan or if the underlying leak or component fault has not been fixed. The float switch will continue to signal a fault as long as it is actuated. You must first address the cause, dry out the base tray completely, and confirm the float switch is seated and moving freely before the code will clear on its own.