Took my 600RD back to IH yesterday as a slight leak had developed from the shower tap and the lever on the shower head had broken off . I suspect both problems may have been as a result of water freezing in the pipes over winter as the shower has never been used . All the staff were so friendly and the problem was fix in under 30 minutes at no charge , in fact I hardly had time to drink the free coffee before my keys were handed back to me . It is when problems arise that manufacturers show their true colours and in respect of IH their response has been absolutely brilliant. A British company providing truly excellent service.