The SmartElec3 Temperature Sensor Issue Technical Bulletin (https://www.reznor.co.uk/wp-content/uploads/2025/09/AirBloc-TB109-SmartElec3-Temperature-Sensor-Issue-EN-2016-09-TB-109-0916.pdf) outlines the sensor issue with the SmartElec3 air curtain controller and the steps needed to resolve it.
I have an issue with the Smartelec3 Temperature Sensor, what should I do?
General technical information about Reznor's products