How to mend ... Dhw Hello Combi Boiler

No dhw or heating ?

i have a heat line vizo combi boiler, i have no dhw or heating, theres a red light flashing above an icon(i do... [Read more]

Problem with Ravenheat RSF 820/20 combi boiler?

I have just drained the hot & cold water from the system, when re-filled the central heating works fine, but t... [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]

Correct fitting of diaphragm kit for Baxi 105e combi boiler?

Ordered and fitted a DHW diapragm kit for my Baxi 105e combi-boiler. Only slight worry is that I have a tiny o... [Read more]

No hot water on Worcester 28CDi?

I have a Worcester 28CDi combi. The CH works fine but the DHW has a problem. When i open a hot tap the red lig... [Read more]

what would be causing a "pouring" sound from my ferroli modena 80e?

A few months ago the over flow on my ferroli modena 80e combi was in constant over flow and the ch pressure ga... [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]

Leaky DHW Heat Exhanger - Vaillant Combi VCWGB221?

DHW HE (Black plastic) is leaking from LH side of the boiler. What effect this leak will have on boilers perf... [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]

combi boiler probs now and then?

When switched on, the fan works for a short while, it doesn't ignite. and the DHW indicator light flashes fast... [Read more]

why does my combi boiler run a full pelt?

I have an alpha 240 eco combi boiler. On Monday i came home to find the heating had stopped working. On inspec... [Read more]

Leak on Baxi 105e Combi. Boiler?

I could see it was apparently coming from what I thought was a grub screw missing that holds the DHW Pressure ... [Read more]

vokera linea 24 combi boiler?

the gas supply to my Vokera linea 24 pulses ie on 5/6 seconds then off 5/6 seconds off on both dhw & ch.

No hot water on my worcester/Bosch combi 24i?

Boiler has been working fine for the few years we have been in this house. Every thing was fine until last wee... [Read more]

Vaillant GB2 EH - Got DHW but no CH and its freezin!?

Hi Guys - am in desperate need for tips on how to fix our Vaillant VCW-GB-282 EH Combi. Installed about Apr 19... [Read more]

dhw continues to run even though the taps are off?

I have a baxi instant 105e combi boiler. often the pump continues running even there are no taps in use. The w... [Read more]

repair of ravenheat 820/20 fan assisted combi-boiler?

central heating is working but no dhw.lot of banging and popping recently before failure.replaced diverter val... [Read more]

How do I increase my combi boiler hot water temperature above 60*?

Ferolli Maxima 35C. Good animal, had it for 3 years but it niggles me that the DHW is limited to about 60 deg... [Read more]

how do I fix the leak from the back of the DHW flow valve in my alpha 280E ?

I have a dribble of water coming from the back of the DHW flow valve in my alpha 280E combi boiler. I have tak... [Read more]

Sime Super 102 Main burner pulsing fault?

I have a SIME Super 102 combi boiler. When any DHW tap is opened the boiler starts up ok and pilot light comes... [Read more]