Hi guys, sorry for the delayed update. Beamish Morgan found the fault, and it was a wiring fault. It was a single very fine strand of wire from the main corem was arching across onto another connection. This was also giving me a intermittent problem with my heater speed. Once the eagle eyed sparky found and corrected the fault I have had no further issues and no new parts was required. Great work done by the guys at Beamish Morgan, as this problem could have easily been "ONE OF THOSE FAULTS" which kept coming and going.
