Worcester Bosch Temperature Sensor 8716118277

The Worcester Bosch 8716118277 is a temperature sensor used within Worcester Bosch gas boilers. It sits in the appliance's sensing circuit and reports temperature back to the control board, allowing the boiler to regulate heating and hot water output accurately. It is listed by the manufacturer under thermostats, thermistors and sensors.

• Boiler locks out or fails to fire, with a fault code relating to temperature sensing
• Heating or hot water temperature drifts away from the set point
• Domestic hot water runs hot and cold instead of holding a steady temperature
• Radiators or cylinder reach temperature erratically, or the boiler cycles on and off
• Resistance readings from the sensor fall outside the expected range when tested with a multimeter

• Check the appliance GC number and model against the compatibility list to confirm the sensor is correct for your boiler
• Confirm the part number on the existing sensor or the appliance documentation matches 8716118277 or the alternative number 2245041
• Inspect the sensor pocket and any sealing washer or O-ring at the same time, as these are often disturbed during removal
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.