How to mend ... Heat Exchanger Dhw

How can I change my DHW heat exchanger on my Aplha 240ECO?

Could you please assist me in the correctmethod of changing my DHW heat exchanger on my Aplha 240 ECO combinat... [Read more]

baxi 105e?

the push rod on the dhw differential valve will only operate the microswitch when heating is on also pressur... [Read more]

halstead ace high ( combi)?

does not get very hot on hot water unless taps turned very low have checked dhw heat exchanger no leaks clean ... [Read more]

while running hot water boiler runs hot & cold for the duration tap is on?

tested gas supply 21 mb flow rate 12 ltr removed heat exchanger dhw clear changed both ch &dhw sensors checked... [Read more]

Ariston euroCombi SX20 DHW temp variable?

I have a 10 year old plus SX20 EuroCombi - recently serviced by Corgi Engineer and declared to be in good work... [Read more]

Vokera Linea 24 hot water temperature anybody?

Need some advice on our vokera linea24. Had a proper look in manual,but can't find all answers.We have a prett... [Read more]

How can I fix my Chaffoteaux Britony boiler SE 80?

The hot water, whether the heating is on or off, fluctuates between hot and cold in a 30 odd second cycle. The... [Read more]

Combi boiler losing pressure?

I have a Vokera Syntesi e boiler it keeps losing pressure but there are no leaks. When on DHW only setting tem... [Read more]

Leak from a vaillant VCWGB221H combi bioler?

I have a leak from LH side of the boiler near the d h w. heat exchanger i think, it is plastic black 3 tubed c... [Read more]

Valiant Turbomax 282 DHW not very hot?

I have had a 282 for 10 years, repaced diverter valve, diaphams, micro switches etc. The DHW supply has never ... [Read more]

Water pressure on a Sime 100e combi-boiler?

... after replacing the diverter valve diaphragm, dhw heat exchanger and cleaning the inline filter I'm still ... [Read more]

How to remove the 2 allen screws on the DHW plate heat exchanger?

The head on the allen screws have worn and will not move. Any ideas?

High pressure on my Optima Ferolli 901 central heating?

Hi, I have a Ferroli optima 901 . I had problms with the DHW and foolishly adjusted this on the mod gas valve... [Read more]

Worcester bosch 28si lockout?

My Worcester 28si keeps locking out shortly after firing. I have ruled out primary sensor, dhw sensor, fan ai... [Read more]

Vaillant 242E?

Is it possible to clean the DHW Heat Exchanger plumber tells me I need a new one as its prob slightle dirty.

How can I fix my Halstead Ace High combi?

I have adequate CH but the DHW is not hot enough. (Luke warm is an exageration!) The lower heat exchanger ha... [Read more]

recurring rust problem with Vaillant combi/heating?

I have a Vaillant combi VCW280, 5 years old, with Hudevad radiators. We are going through a recurring cycle of... [Read more]

Vaillant Turbomax Plus 824E?

Hi there, have the above boiler and over the past few months the hot water has been reduced so that now there... [Read more]

CH OK no HOT WATER on Vaillant Turbomax Plus 824E ?

Central heating works fine, but not hot water on any taps. When I turn the taps warm water coming for few SECO... [Read more]

DHW problem Vaillant Turbomax Plus 828E?

If I open the cold water supply valve to the boiler fully, when drawing hot water the temp. rises to approx 83... [Read more]