Recent content by plunders

All is well my boiler is cured, after changing several parts it turned out to be the DHW heat exchanger. Thanks all, Regards Plunders

So are you suggesting that the DHW heat exchanger is faulty?

OK it's the boiler temperature, but the pressure is fine until the gushing/spluttering starts then the pressure drops and error code S.53 shows?? Regards Plunders

My Vaillant Turbomax has recently developed a strange habit? CH working OK, then when the DHW is turned on, after 30 seconds or so a rushing of air/spluttering can be detected within the boiler followed by the DHW temperature rising rapidly then flame going out, cold water, the pressure being...