vaillant turbomax pro 28e

[coops66]

Can anyone suggest what the problem is please.
I have a Vaillant turbomax pro 28e GB 282
Recently when the shower is on the hot water goes hot and then luke warm and again hot. Getting really annoyed with this and can't really afford to get new boiler.
Has anyone got suggestions as to what the fault could be.

 

[easyflow]

What sort of shower do you have,

 

[Agile]

Either interaction between thermostatic shower and boiler or a b locked plate heat exchanger.

If a boiler is faulty then a boiler engineer can repair it! It does not need replacing!

Tony

 

[coops66]

The shower and taps were all working fine until about two weeks ago. then noticed that the water temp was going up and down. Shower runs straight off boiler. Turn on and instant hot water Normally

What sort of shower do you have,

 

[coops66]

great thanks will get friendly plumber to have a look.

Either interaction between thermostatic shower and boiler or a b locked plate heat exchanger.

If a boiler is faulty then a boiler engineer can repair it! It does not need replacing!

Tony