kettling or overheating on Ace high

[andy b]

Hi all
my Halstead Ace high kettles and hisses from Auto air vent after long DHW DRAW(a bath full)
please help
Andy

 

[Puddle]

Whip the heat exchanger out and descale,replace,fit new auto vent,check high and low flame gas pressures,adjust as required,maybe replace thermistor and bobs your uncle,fannies your aunt,jobs a good un 😛

 

[wards]

Whip the heat exchanger out and descale,replace,fit new auto vent,check high and low flame gas pressures,adjust as required,maybe replace thermistor and bobs your uncle,fannies your aunt,jobs a good un 😛

as above,SIMPLES😎

 

[andy b]

just love straight talking!!what do you recommend for descale - a brick cleaning acid maybe
thanks for replying