Potterton Suprima 70HE

[stevereader]

Hi all,
I have a potterton suprima 70he which in the last two days is intermittently going into lockdown - the error code is ; Air Pressure Switch Cycling Lockout,

the boiler will manually reset and work fine for an hour or two then quit again

can anyone help me with this??

thanks Steve

 

[Agile]

The code indicates a combustion problem which we dont advise on here.

But it could also be a PCB/software problem as well. Some others may be able to say if thats a common problem with that model.

Tomny

 

[stevereader]

Thanks for that-sounds like a job for the experts!

 

[Agile]

If it were the PCB then a careful DIYer can change that.

But if wrongly diagnosed then its an expensive part at about £200 !

 

[jalefa]

Wouldn't you need accesses to the combustion chamber for that ?
Now don't get me wrong I'm not the gas police and if people want to medal in things they don't understand do it at your peril

 

[stevereader]

Thats what worries me!! Wierdly enough it seems to do it more when its heating the hot water only

 

[Agile]

PCBs are housed away from the combustion chamber.

They have to be because they need a cooler environment!

Tony

 

[CBF]

The code indicates a combustion problem which we dont advise on here

could also be a blockage in the condensate

 

[stevereader]

The code indicates a combustion problem which we dont advise on here

could also be a blockage in the condensate

Thats one of the fixes in the book-but i checked that and its fine!

It fired up this morning at at 7.00am - ran for 15 mins then locked out !aaaaargh !