Remeha avanta will not switch off.

[Neil1]

i have recently had a remeha avanta 18v boiler fitted. When the boiler is supposed to switch off by timer or by selecting off on control [drayton lp214]
it will either not swith off or will go off for a few hours then come back on. Every time we have to switch it off at the spur. The plumber who fitted the boiler, keeps changing the the control unit [drayton lp214] but after it has been used a few times it does it again. The plumber is convinced the wiring and boiler is fine and it must be a fault with the controlers. However after 5 different ones i am starting to doubt this.
Has anyone had experience of this fault Or suggestions of what it could be?

 

[chrishutt]

However after 5 different ones i am starting to doubt this.

I think you could have a point. Someone with a few brain cells needs to have a good look at the wiring diagrams for the controller and boiler and check those against what's been installed. Plumbers aren't necessarily too hot on electrics.

 

[Gasguru]

The boiler has been designed to allow considerable flexibility with controls setup. I'd contact Remeha technical for the low down.