How to mend ... Boiler Demand Heating Hot

Worcester Bosh Boiler 24/28 si II?

I have a Worcester Bosh boiler that keeps losing pressure from what I believe to be the pressure release valve... [Read more]

Problem with hot water demand?

I have a vaillant 824 E, problem with hot water demand - boiler kicks in on start up but temperature on boiler... [Read more]

greenstar 24i. No hot water?

No hot water delivery, the boiler kettles on the main heat exchanger with HW demand. Central heating demand n... [Read more]

worcester 24i rsf combi heating?

hi, when in demand mode my boiler fails to light. fan does not run or pump, but hot water system is fine and w... [Read more]

worcester bosch 240 combi?

I am not getting any hot water from my boiler when i put the on demand switch on. If i put the Heating and wat... [Read more]

Worcester Combi boiler 240 hot water only tepid?

What is wrong with boiler when hot water is only tepid on demand however heats up normally when the heating is... [Read more]

low water pressure F28 lockout, Vaillant Turbomax plus 828E ?

Hi guys, Hope you can help. I've viewed all the relevant and some of the irrelevant posts on similar subjects ... [Read more]

i have no hot water. ?

I have an old worcester 350 boiler. my heating works fine but i cant get hot water on. The green light demand... [Read more]

Hot Water Problem with Ideal Isar He24 Combi?

Hi, Can anyone help? A friend of mine is having problems with her hot water supply from her Ideal Isar He2... [Read more]

Vaillant Turbomax 828 problem?

This is a strage one! I am not sure whether my diverter valve is on the way out or whether something else is c... [Read more]

sime boiler 80 E?

I have a sime boiler friendly format 80 E. The flame will not ignite when placed under demand either by hot wa... [Read more]

How Can I Fix A Potterton EP2002 Heating System?

My daughter has a Potterton EP2002 system with a Potterton Suprima 40L boiler and a MPE322 diverter valve. Th... [Read more]

No heating, but hot water. Boiler tells me there is ' NO demand for heat'?

I have a Vaillant ECOtec plus combination boiler. I rang Vaillant and they asked me to make various checks. T... [Read more]

potterton performer 24kw HEcombi?

Hello ,is there any quallified heating engineers out there who may know wat this fault is. no hot water,the p... [Read more]

Worcester Bosch 240 RSF not firing?

Worcester Bosch 240RSF combi boiler. Soft water, high mains pressure. Here's the problem: I had replaced th... [Read more]

worcester 350 combi boiler keeps tripping RCCB?

As soon as demand for either hot water or central heating is called for the RCCB in my consumer unit trips.Any... [Read more]

The heating on my Worcester 280 boiler has stopped working?

The hot water heating works on demand but the heating doesn't. The LCD display isn't working. This hasn't been... [Read more]

Vaillant VCW GB 242 E :- Failure to iginite when central heating demanded?

My Vaillant VCW GB 242 E Combi Compact Wall Mounted Boiler is failing to ignite when the central heating is sw... [Read more]

Vokera boiler always at 55-60degC?

Although it is summer and all settings are down at lowest mark the and no radiators are hot and on/no taps run... [Read more]

how can i repair my worcester 26cdi combi boiler?

the hot water and central heating are overheating and shutting the boiler down. when iether are called for on ... [Read more]