i have replaced the plate heat exchanger, cleaned up and put new bits in diverter valve, the main heat exchanger and pump look like they work ok on CH mode, i did notice that the preasure release valve was blowing off after the CH cycle had finished could be the main heat exchanger, what do you...
hi anyone out there help i'v had this boiler for 10 years + and had no problems upto about 1 year ogo, the hot water started playing up (not getting hot) and locking out i asked a plumber who was working at the same place as i was he advised me that it could be the hw heat exchanger which i...