I have an Ecotec 615 system boiler fitted in 2007. Recently fault code 75 has appeared and the boiler won't ignite. It goes through 5 cycles trying to turn on before the fault code appears. An engineer has been out three times and has tried fitting a new pressure sensor switch, a new pump and lastly recharge the expansion vessel but the same fault is appearing, although this morning I was able to switch the boiler off then back on again and it ignited after the second time of asking. Is it time for a new boiler or should I continue to throw money at this . At the moment I have spent over £500.
Richard
Richard