How to mend Dhw Hot Combi

1

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]

1

potterton combi 80 pump stops when hot?

my boiler runs ok for DHW had new divertor valve last year and flushed. CH starts runs for 20 mins, rads get h... [Read more]

1

heating problem, whats wrong please?

chaff britony combi 80. hot water fine, heating problem comes on low rate 10 secs then off cycles again when h... [Read more]

1

No hot water with Biasi 28 combi boiler?

Can anyone help. I have a Biasi boiler which had a knocking noise when it first started from cold. I added a ... [Read more]

1

Diverter valve problem?

I've an ICON T combi boiler - no further ID, sorry. Gets CH but no DHW. Help from another forum suggests Diver... [Read more]

2

how can I fix Combi Ideal Response 120. No hot water/central heating?

I am trying to fix an Ideal Response 120. After replacing the Limit stat, when DHW is turned on initially mach... [Read more]

1

Britony Combi 80 DHW Tepid?

My Britony Combi 80 won't heat the domestic hot water to the correct temp. Tepid only. The boiler kicks in ok ... [Read more]

1

BAXI COMBI 105e cutting out problem?

3 year old BAXI 105e problem when DHW is selected pressure is 1.1bar all lights on except central heating.temp... [Read more]

1

central heating not working?

I have a biasi 24s combi boiler. Dhw working but heating not working, flow pipe from boiler and first radiator... [Read more]

3

DHW sometime hot, sometimes not?

Hello, I've got an Ocean Alpha 240eco combi boiler. The DHW has gone tempromental, sometimes it gets hot som... [Read more]

2

i have a glow worm swift flow 80 combi boiler, need help to repair?

dhw was intermittent and now i'm lucky if the heater fires up at all the pilot light is ok , i have fitted a n... [Read more]

1

DHW fault on Ferolli Modena 102?

I have a ferolli modena 102 combi and have recently noticed the hot water temperature is not what it used to b... [Read more]

1

unburnt gas in flue gases, glow-worm 100e electronic combi?

Boiler fires ok on DHW and CH, plenty of hot water and no unburnt gas in flue gases on DHW, but in CH mode boi... [Read more]

51

Ravenheat CSI 85AT boiler tripping problem?

Ravenheat condensing combi boiler CSI 85AT fault? My 1.5 year old boiler has developed a random & intermitt... [Read more]

4

Ravenheat condensing combi boiler CSI 85AT fault?

My 1.5 year old boiler has developed a random & intermittent tripping fault, in both modes of heating (i.e. CH... [Read more]

4

Potterton Performa 24 combi boiler on off cycling problem?

My Potterton Performa 24 combi boiler ignites correctly but only stays on for a minute initially then switches... [Read more]

2

One hot water tap only gets warm, others in house get HOT?

Hi I have a Glow Worm Compact 100p (permanent pilot) providing CH and DHW. All the hot water taps work fin... [Read more]

3

My Alpha combi boiler has very low water pressure at the DHW hot tap?

My Alpha Ocean 280p Combi Boiler has a very low DHW pressure and flow. I have checked the cold water inlet fil... [Read more]

1

vokera excel 80 E combi does not give hot water in DHW mode?

It gives hot water in the taps only when CH mode. Some times in DHW mode it attempts to fire and the fan may c... [Read more]

19

Fixing a Baxi 105e Combi which reports a fault when cold, works when reset?

Hi - this has baffled me and the heating engineer I've called in to look at it. My Baxi 105e has been reportin... [Read more]