POTTERTON PERFORMA 28i

[muckshifter]

Hi guys,my hot water takes a while to get hot from the tap,could it be the diaphragm and is it a big job to replace,ie drain all system or can you just drain the boiler on its own?,many thanks for your time guys

 

[Boilerman2]

The diaphragm is one cause of poor hot water, but not the only cause,
far more info would be need to make a diagnosis - rather than randomly guestermating the fault and changing parts that may or may not need replacing it would be far better and probably cheaper to get a boiler service engineer in to have a look and fix it for you!!

 

[adlplumbing]

when it gets to hot tap is it hot

 

[DP]

I would start with the gas pressure. More often than not, gas line is undersized

 

[Agile]

You need to see if the demand switch is operating.

Tony

 

[adlplumbing]

I would start with the gas pressure. More often than not, gas line is undersized

gas advice

 

[Agile]

Hardly useful advice for a DIYer.

Is the diverter valve switch operating?

 

[stumpydick]

dont forget, this boiler has 2 diverter valves, cos it stores pre heated water in the expansion vessel. you deffo need an expert on these,

 

[ChrisR]

Stumps is right. I have to remind myself how they work when I come across one. A slightly subtle fault can throw you.