Speaking to Fisher and Paykel the fault number is 49 Circuit Breaker Internal.  The faults that could relate to this are that the pipelines are blocked, the hot/cold valves are inoperational or the diverter valve may be either blocked, stuck in the open/closed position or it is inoperational.  I am still trying to get some more detail regarding the valves so I can test them.  Other than that this is about as far as I have gotten on a Saturday afternoon when there is no technicians working over the weekend.  Hope this helps
                 Timmie
                
 November 2007