How to mend Hot Water Boiler Ch System

1

My 350 combi will only issue hot water if the CH system is on?

My 15 year old 350 combi has developed a fault in that if the CH is off and you turn a hot tap on, HW comes ou... [Read more]

2

potterton puma ?

my potterton puma which is about 8yrs old has developed two faults, when you run the shower upstairs for more ... [Read more]

1

Worcester 240 - one cold radiator?

Hi, I'd be grateful for your suggestions on the following problem - I's got me stumped! My Worcester 240... [Read more]

1

RAVENHEAT LS80 in consistent DHW + pressure probs?

I have a ravenheat LS80T and when i don't use the Heating the pressure stays perfect but when I use the heatin... [Read more]

3

Potterton Puma e80?

I moved into a property in Warwickshire that has a 12-15 years old Potterton Puma e80. We have two showers, on... [Read more]

3

Vaillant GB2 EH - Got DHW but no CH and its freezin!?

Hi Guys - am in desperate need for tips on how to fix our Vaillant VCW-GB-282 EH Combi. Installed about Apr 19... [Read more]

2

can a combi boiler run hot water when the CH system is empty?

I have a glow worm 30ci combi boiler. A radiator pipe has sheared off (oops) right next to the wall it comes ... [Read more]

5

Baxi Bermuda Back boiler?

After draining down to remove a radiator, and refilling system, CH ok but no hot water,told that there is an a... [Read more]

2

Hot water keeps boiling?

DHW (gravity fed HW pumped CH system; Potterton floor standing (?1200) balanced flue boiler replaced 6 years a... [Read more]

5

HELP!!!! Biasi Combi M90 24S No Pressure?

I have been in my house for a year. During that time I have had no problems with the boiler which is a combi f... [Read more]

5

worcester 24I junior losing pressure?

I have a static caravan with a Worcester 24I Junior boiler. The pressure gauge goes down slowly over a period... [Read more]

4

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]

3

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]

3

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]

1

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]

2

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]

1

vokera mynute 28se pressure keeps dropping?

got vokera 28se boiler and the pressure keeps dropping ,keep on topping up system .but shouldn't have too ,fro... [Read more]

3

Why does the pressure keep rising?

I recently had my bathroom tiled, in the process the builder took the radiator off of the wall, after refittin... [Read more]

1

Worcester 28i Junior Banging when CH fires up and scale in hot water?

Our boiler is just over two years old and has been playing up for nearly a year. The hot water is fine, but wh... [Read more]

4

hw only works when ch is on?

We have a Potterton EP2000 contoller but that seems ok. I think I've isolated the fault to the diverter valve... [Read more]