Potential Cause (Technical Use Only: Potential remedy):
Wiring disconnected from HX OT2. Check wiring – reconnect if required.
Faulty HX OT1 (switch does not open when hot), or faulty HX OT2 (switch does not close when cool). Replace BOTH switches ‐ HX OT1 and HX OT2. After replacement, check operation and air flow/fan speed settings.
Incorrect switch fitted. Check switch rating (marked on switch) – replace with correct rating switch if required.
For Braemar Ecostar TQ, TQM, TQS, TQMD, BMQ Gas Ducted Heaters and Braemar Supernova TQS Gas Ducted Heaters.