So … just moved house and have finally got Honeywell TRV’s on all radiators and the BDR91 relay installed to allow me to control all the radiators in the house … I have got all my setpoints in home assistant and temperatures so I can guess when the relay box is sent a signal to turn on the boiler and track running time etc … my only question is, is it possible to monitor when the relay actually turns on rather than guess from setpoints not being hit ? i have a green light that when its on the relay the boiler is on, and i even tried sticking an ikea motion sensor on the light but i get no reading.
Any ideas would be greatly appreciated.