It seems like the heating for our hot water has stopped working for some reason, so hoping someone could point me in the right direction to determine what's failed.
If I request HW on the controller, the boiler doesn't fire up (ie the request for heat light doesn't light up, and the boiler doesn't kick in). If I request CH at the thermostat, the boiler fires up fine, and everything starts whirring away as usual.
Here's how our system is wired in currently:
If I request HW on the controller, the boiler doesn't fire up (ie the request for heat light doesn't light up, and the boiler doesn't kick in). If I request CH at the thermostat, the boiler fires up fine, and everything starts whirring away as usual.
Here's how our system is wired in currently: