Junkers Ntc Zw23E/Ke Boiler Probe 8700400015

✅ NTC temperature sensor for Junkers boilers, used to measure and control water temperature in heating or domestic hot water circuits.

✅ Compatible with Junkers boiler models ZW23E and ZW23KE, as well as other units using this NTC sensor type.

✅ Technical function: the sensor sends temperature data to the electronic control board to regulate burner operation and maintain stable and safe temperatures.

✅ Replacement recommended when temperature errors appear, the boiler cycles irregularly, water is too cold or overheating occurs.