How to mend ... Dhw Ok Ch

halstead finest gold no dhw?

when i turn hot tap on boiler will not fire up. if turn ch on dhw works ok. help!

Why is the CH on my Modena 102 boiler not working?

The CH is not coming on at the boiler, the DHW works fine. Turned it on for the first time in months via the t... [Read more]

PROTHERM 80E - Boiler cuts out ???

Boiler will run DHW / CH and for no apparent reason cut out, particularly annoying half way through a shower. ... [Read more]

BAXI COMBINATION BOIER?

BAXI COMBINATION BOIER Power on Presser gauge shows 2.5 CH and DHW mode Boiler star going Pump start ... [Read more]

baix combi?

in ch and dhw mode; boiler star, pump start working, but when boiler demand for fan to ingage, fan doesn't c... [Read more]

ferolli lighting but not staying lit?

as above it lights but will not stay lit, rises to 11.5 mbar as it should then dies off, few seconds. all powe... [Read more]

Sime Friendly Format 80e, replaced diverter valve but rads. still get hot?

Boiler: Sime Friendly Format 80e Problem: Radiators get hot when DHW is run. I had assumed this was the di... [Read more]

csi85 1 year old?

i have two raventheat csi 85 and both give hot water when ch mode is on , but dont work when in the dhw only ... [Read more]

Worchester Bosch 280 RSF will not supply DHW?

My boiler works OK when used on CH, but will not supply DHW when the boiler is cold, if the boiler has been he... [Read more]

BAXI 105E ISSUES ON FIRING UP DHW / CH?

My boiler is problematic - takes sometimes 30mins resetting and resetting because of fame failure light flashi... [Read more]

how do i re-pressurise my vokera 20/80 rs flowmatic?

my vokera 20/80 flowmatic will not fire up for dhw and ch. the pressure gauge is at zero so i assume it needs ... [Read more]

Why Intermittent hot water on the Vokera Compact 24?

In DHW/CH mode the heating works fine (all singing all dancing). Turn on the hot water tap and the boiler gas ... [Read more]

Vokera flowmatic 20/80 not igniting on call for DHW or CH?

System was working and, on noticing temperature drop in the room found that pilot light is lit, fan is operati... [Read more]

Modema 102?

ch &dhw keeps shutting off also my pressure sensor does not work (reeds 2 bars) when i remove room sealed cove... [Read more]

Ferroli Modena 80e will not light?

Hello I have read your forum for a while because I have a 10 year old Modena that is good but never trouble fr... [Read more]

Jaguar 28 Boiler?

I have a problem with the central heating on my boiler - Jaguar 28. The hot water runs fine but nothing happen... [Read more]

Ferroli Modena 102 Temperature Problems?

I have problems when trying to adjust the temperature of both the DHW and the CH. Both are very high and do no... [Read more]

baxi 80 eco boiler cant stop ch coming on?

HI I CANT STOP MY BAXI 80ECO BOILER FROM ACTIVATING THE CH , EVEN IF I ONLY HAVE DHW SELECTED. COULD THE SELE... [Read more]

vaillant combi?

dhw is ok ch fires up for few seconds then goes off and continues this cycle on ch. only water in boiler is ge... [Read more]

Faulty baxi 105e combi boiler?

No problem with either DHW or CH starting but it gets to desired temp then flame goes out and the temp leds so... [Read more]