Recent content by Heartworm

Im a qualified electronics engineer, working with a qualified electrician, so not boiler engineers but for fitting a thermostat should be fine! 8) Where the link is fitted states for 24v only, and checking the schematics it says this should not be used for mains thermostats. thx

Fitting a thermostat to the boiler, using external controls. I have the 230v signal from the thermostat to pin 2 on the mains voltage heating control plug on the controls interface pcb but the boiler does not ignite. The wire link has been removed from the voltage free heating controls on the...