How to mend ... Hot Ch Ok

Vokera Linea 735 combi?

Boiler won't fire when hot water is turned on but temp. rapidly goes up on digital display whilst the tap is r... [Read more]

Boiler set for DHW only,but CH also comes on Ferroli optima 1001?

The boiler is set for DHW only, recently even when hot water is not on demand , boiler switches itself on for ... [Read more]

Ferroli Modena 80E Hot water but no CH?

Hi, I've not used my CH for a few months over the summer, went to put it on a few weeks ago during a cold s... [Read more]

plumbing?

i have a sime super 90 combi. when i turn on the hot water tap, the unit does not fire up, however the ch wo... [Read more]

Potterton Prima-donna F - not heating water?

My central heating seems to work fine but there is no sign of hot water. If I turn on the HW only on the contr... [Read more]

vokera 80sp?

i have no hot water or ch pilot light on but boiler does not fire up when requested

alpha cb24/28?

Hi, Have the same problem as MEL JOHN (APRIL 2011). CH ok and DHW but when DHW ON ONLY-NO HOT WATER. I read o... [Read more]

signal in worcester bosch combi boiler?

i can get hot water ok but the boiler cant find a signal for CH

hot water problem?

i buy revenheat boiler just 5month befor model he 120(t) low nox silver when boiler on after 5 min he show on... [Read more]

My Worcester greenstarHE shows red light flashing and FO code & doesnt fire?

Just returned from a holiday and found CH doesnt work. Red light next to the triangle flashes and FO code flas... [Read more]

domestic hot water problem?

why is my domestic hot water only luke warm even when heating is on. baxi eco80e boiler.all diverter valve ope... [Read more]

Worcester 28i Junior Boiler?

My boiler keeps switching off the CH and the reset button keeps flashing once per second. When I switch the he... [Read more]

Ravenheat 3 Way Valve repair?

Ordered new valve, fitted it, but its now stuck out all the time, its ok till hot water bit fitted back into C... [Read more]

What part do i need?

My boiler is a Worcester bosch 240 Combi. The CH, when switched on works fine. When i turn on the hot water ta... [Read more]

change ch & hw at seperate times?

potterton slider for ch and hw how do i change the hot water from the some time as the ch ?

intermittent hot water?

I have a glow worm swift flow combi boiler about 10 years old, i have had different parts replaced over the ye... [Read more]

Could boiler heat exchanger be clogged?

My boiler seems to take ages to deliver hot water to the taps... over a minute, more to bathroom which is loca... [Read more]

heating system?

I had a glow worm 24hxi boiler fitted to my existing y plan system using the original controls(programmer,room... [Read more]

ravenheat boiler - CH works fine, No hot Water?

Hi Guys The CH works fine, But when you want HW the bolier wont fire up you just get cold water and a whist... [Read more]

Vaillant Sine 18 T3 W - No hot water, CH ok?

I have a Vaillant Sine 18 T3 W. The boiler won't fire up when hot water tap is opened. Pressure OK, in fact si... [Read more]