How to mend ... Boiler Running Heating Hot Water

Boiler fires up when demand for hot water but doesn't when demand for C/H?

I have a Potterton Netaheat Profile 80e boiler, Honeywell V4073A mid-position valve, Honeywell ST699B programm... [Read more]

Vaillant VCW sine18 T3 WFH-hot water supply problem?

My boiler will not provide hot water at the tap unless it is running in heating mode when the tap is opened (p... [Read more]

slant fin boiler?

i have an old slant fin boiler that heats both hot water for regular use and heating .the heating sides zone v... [Read more]

Vaillant sine 18 T 3 WF H. No hot water. Low water volume from hot tap?

Hi, I have a Vaillant sine 18 T 3 WF H. and the problem is no hot water the symptoms are:- 1, low water fl... [Read more]

Faulty Ideal Classic NF80 Combi Boiler?

Hi, our boiler will not work properly. When it is switched for hot water only it fires even if the water is no... [Read more]

worcester 240 boiler - no hot water or heating!?

Whats happened to my heating and water - first of all couldnt shower without either heating being on or else s... [Read more]

Sime Friendly Boiler Heating comes on when running bath/shower!?

My Sime Friendly Boiler is coming on whenever someone turns on to take a shower/bath/or do the washing up. The... [Read more]

Vokera Maxin 28e boiler problems?

I have a Vokera Maxin 28e combi boiler. For months now, there has been a long delay getting hot water from ru... [Read more]

Heating but no hot water?

I have a glowworm 30 Ci combi boiler which has been great since it was installed. but yesterday the hot wate... [Read more]

Alpha CB24, water runs hot then cold ??

When Running the hot tap the water warms then goes cold, the boiler is still running just no hot water? It he... [Read more]

how to fix my vaillant 242 e-h combi(fires up when not req)?

My boiler fires up every couple of minutes for about 10 seconds then shuts down again,there is nothing in the ... [Read more]

Worcester 350 Combi Plate heat Exchanger - Is engineers diagnosis correct ?

We have a Worcester 350 Combi and recently when we have been running the hot water the system has been overhea... [Read more]

i have a combie 82 boiler,no hot water running only when boiler is on?

i have a combie 82 boiler,there is no hot water coming from the system only when boiler is on or centeral heat... [Read more]

baxi bermuda inset 2 boiler pilot flame going out?

We have a baxi bermuda back boiler running our central heating system (inset 2 50/4 installed in January 1999)... [Read more]

How can I fix my SIME combi boiler friendly format 80E?

Our boiler runs with the heating on, it ignites initially then seems to go out with the pumps still running. W... [Read more]

Looking for a manual for Myson Orion Boiler?

Hi, I am looking for a manual for my boiler which is a Myson Orion. I just want to see how its supposed to be... [Read more]

My boiler keeps overheating and turning off. (Ariston Eurocombi)?

When my boiler is running in hot water or heating mode it will trip on over temp, the little red light comes o... [Read more]

I have a alpha 240e combi boiler about eight years old?

I have noticed recently that radiator is getting hot when running hot water with boiler set on water only.also... [Read more]

My boiler is heating the hot water but not the radiators?

I have a Glow-worm conventional boiler but at the moment the boiler is heating the hot water but not the centr... [Read more]

Ravenheat CSI 85 no DHW unless CH on?

Hi, I have a problem with a Ravenheat CSI 85 (18 months old) which will only give DHW when the CH is on. ... [Read more]