Are you having problems with their Potterton Suprima boiler?
If you are experiencing intermittent problems, then the chances are that the circuit board may be failing. It is a very common problem, with the boiler shutting down to red lockout randomly.
We can help you with this problem, we do a refurbishment service for these boards at a fraction of the cost of a new circuit board, just search for your matching Suprima part on our site.
There are five different designs of the Suprima pcb.
The 407750 has a square reset button (may sit behind a membrane) with a red and green led light.
The 5102160 has a round reset button and a red and green led light.
The 5111603 also known as 5107117 is in a plastic case and has a square reset button and a single led light that changes colour with operation.
The 5110550 is for the Suprima HE range, it comes in a long plastic case with a potentiometer on the end and three indicator lights.