612240 Genuine Evaporator Sensor for Bosch, Siemens Fridges, BSH 00612240 Evaporator Temperature Sensor Replacement

Genuine BSH evaporator sensor 612240, also written 00612240, measures the temperature of the evaporator in Bosch and Siemens fridges that use this number. The electronic control relies on it to manage cooling and, on frost free models, to know when a defrost has finished. Sensor length, connector and resistance aren't on our record, so check the number against your parts list or the old sensor before ordering.

Fridge icing up or not cooling? Check the evaporator sensor

The evaporator is the cold plate or coil that absorbs heat inside the fridge or freezer, and a sensor clipped to it reports back to the control board. If the reading goes wrong, defrost may end too early or run too long, leaving ice packed on the evaporator, blocked air vents and a fridge section that warms up while the freezer keeps working. Some models show a fault code or flash the temperature display. Ice building up on the rear wall of the freezer compartment is a common sign on frost free models.

Part details

• Genuine BSH part 612240
• Also written 00612240
• Evaporator temperature sensor
• For Bosch and Siemens fridges that list this number

Replacing the evaporator sensor

Turn the fridge off at the wall and move food to an esky or another fridge. The sensor usually sits behind the inside rear panel of the compartment, clipped to the evaporator. Let any ice melt completely before removing panels, and never chip at it. Note how the old sensor is clipped and routed, fit the new one in the same spot, reconnect and allow several hours for the fridge to cool down.

Questions about this part

Could a fridge that isn't cooling have a different fault?

Yes. Fan motors, defrost heaters, door seals and the control board can all cause similar symptoms. Testing the old sensor's resistance at a known temperature helps confirm it before ordering 612240.