How to mend ... Ch Hot Water

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]

Problems with Ravenheat Combi RSF Fanned?

Boiler has no markings on, but have manual that says... Fanned Combi RSF 84E - RSF 100E RSF 84ET - RSF ... [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]

No hot water with Worcester 28Si?

We have a Worcester 28Si and are now getting no hot water at all. It started a while ago. The central heating... [Read more]

ferroli modena 80 E ch not firing up?

my ferroli combi central heating is not coming on and it is also taking longer for the hot water to come throu... [Read more]

Why is the water not heating up?

I have swiched the CH off now the weatehr is hot but now the hot water doesn't heat up - the heating control p... [Read more]

My Potterton EP3001 programmer has 'reprogrammed' itself?

After a holiday with the power off my EP3001 programmer battery ran out (its old) and when switching on mains ... [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]

ideal istor (no power)?

I have an ideal istor boiler that stopped working last night both the hot water and CH, not even hot water on ... [Read more]

My Potterton Prima F60 boiler keeps firing?

My potterton prima F60 boiler keeps firing when programming unit indicates both hot water and central heating ... [Read more]

Baxi Genesis 80 - Hot Water OK - No CH?

My combi boiler is supplying hot water as well as ever; I don't have any CH. It was serviced last September wi... [Read more]

ferroli f 30?

put new thermisters on hw/ ch. still on / off when reaches low temperature, water only warm. removed inner c... [Read more]

Worcester Bosch High Flow 400 Safety Temperature Limiter?

Why do the Safety Temp Limiter keep tripping when CH & hot water switch on & running hot water to fill bath

Can I run my boiler without the CH pump for Hot Water only operation?

My heating system comprises new(ish) boiler (Potterton Suprima 100), hot water cylinder (with cylinder jacket)... [Read more]

Warm water, no HW pilot, but CH works?

I turned off the timers for a weekend whilst away, now the hot water is warm but wont get hot, and I think it'... [Read more]

Grundfos Selectric UPS 15-50 pump?

The pump has been 'jamming' for the central heating for a while, necessitating a good whack to get it started,... [Read more]

My Vaillant VCW combi-boiler doesn't provide hot water for bath?

Although all the controls are turned to maximum my Vaillant VCW GB 242 EH combi-boiler doesn't provide hot wat... [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]

Potterton Profile cycles every 4-5 minutes?

My Potterton Profile 50e when started from cold works normally for about 15 minutes. Then it starts cycling 3 ... [Read more]

Setting the CH & HW timer on a Potterton EP 3000?

We have just moved into a new flat and both the central heating & hot water are working fine. The Potterton EP... [Read more]