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Sorry Jackthorn i didnt see your post, Perhaps locking it into manual tonight would be a good test, also if i run the hot water long enough to trigger the pump and boiler to make sure that side of it is working. Im not sure why but when the previous owners installed the system they went for a...

Brilliant thank you. This may sound daft but im sure we done have room thermostats, just old fashioned radiators with settings on the inlet. In my opinion the ZA5 must also be telling the rayburn not to make any more hot water. Im half tempted to go to screwfix and but the ZA5 myself and save...

Good Morning all, Im hoping you can help, we have been in our new house nearly 6 months and everything has been perfect until Sunday, We woke up and the house was cold. The system is a Rayburn powered by oil, this does cooking and heating/HW in the kitchen, through in the Utility room there is...