potterton performa not working no heat no wot water ?

I am not qualified or experienced to offer any worthwhile help with boiler problems... but that has never stopped me trying...

If it fires up then there's nothing wrong with the firing-up controls.

If it switches off after 10 seconds that suggests it's turning itself off for a reason - the most likely reason is that the water is getting too hot.

Either the thermostat that senses that water might be too hot is defective - or- the water really is too hot and is not being pumped away from the heat-exchanger quickly enough or at all.

It is always possible that the control circuit has got itself confused in some way - but I doubt it.

As I say - I know nothing - a qualified boiler engineer is your best solution - do not let him guess at your expense - if he proposes to change something ask him why? Ask him what happens if he changes an expensive item and it does not fix the problem - is his wrong guess your financial responsibility?

A good engineer will make an accurate diagnosis.

Peccavi
January 2013

it fires up for about 10 seconds then goes out

regg8
January 2013

if the boiler appears completely dead
i would check power supply to boiler
if thats ok then i would check fuses
if the boiler is trying to fire up [but fails]
i would check input & output voltages on PCB to identify faulty components

Q
January 2013