How to mend ... B Dhw Out

Alpha 240 eco boiler doesn't getting hot enough?

My Alpha 240 eco doesn’t getting hot enough. When DHW or CH are on the boiler lights up and stays on for abo... [Read more]

Fluctuating dhw heat Ferroli Modena 102?

When running the bath tap the dhw heat fluctuates from warmish to cold, the demand light remains lit and the b... [Read more]

saunier duval 30e spares supplier needed?

I need a spare diaphragm for the space shuttle. Well, thats what you would think. Actually its the diaphragm f... [Read more]

How can I fix my Halstead Ace High combi?

I have adequate CH but the DHW is not hot enough. (Luke warm is an exageration!) The lower heat exchanger ha... [Read more]

I need a circuit diagram of the Ferroli PCB?

I have investigated the boiler in my son's new home which is a Ferroli Modena 102. It would appear that the in... [Read more]

Potterton Puma 80e - low pressure switch - boiler not firing?

I have just changed a low preesure switch on a Potterton Puma 80e. When I recconnect the two cables the boiler... [Read more]

Vaillant Turbomax VUW GB 242 E - no hot water?

CH works fine. DHW works when CH is on. No DHW when CH is off. White rocker arm isn't pushing down the mi... [Read more]

potterton combi 80 pump stops when hot?

my boiler runs ok for DHW had new divertor valve last year and flushed. CH starts runs for 20 mins, rads get h... [Read more]

How can I fix my Ferroli Modena 102 Combi?

The boiler fires on both CH and DHW FOR 10 to 15 seconds and switches off, it keeps doing this. It seems worse... [Read more]

recurring rust problem with Vaillant combi/heating?

I have a Vaillant combi VCW280, 5 years old, with Hudevad radiators. We are going through a recurring cycle of... [Read more]

Potterton Performa 24 - Intermittent leak?

We have a potterton performa 24 which has been installed for about 4 years (very little use until 2 years ago)... [Read more]

heating problem, whats wrong please?

chaff britony combi 80. hot water fine, heating problem comes on low rate 10 secs then off cycles again when h... [Read more]

fault on dhw vokera 80 excell?

my dhw when turned at a tap keeps going hot and cold i don't know what the cause of the problem is.

No hot water with Biasi 28 combi boiler?

Can anyone help. I have a Biasi boiler which had a knocking noise when it first started from cold. I added a ... [Read more]

My Vokera 36he fine at heating but hot water cold?

Exellent for heating but when asked for DHW (domestic hot water) it cut the boiler out displaying fault 79 (te... [Read more]

Vaillant Turbomax VUW242E No hot water?

I have a Vaillant Turbomax VUW242E boiler,Heating is ok but not getting any hot water. I have replaced the DH... [Read more]

biasi riva compact 24s goes to lock out after a few sec?

my boil goes to lock out after a few sec on dhw and ch any ideas thx biasi riva compact he m96.24sm/c2

halstead ace tap water not getting hot?

central heating ok when dhw selected water stays cold no leds come on model 47333-10 ace

Diverter valve problem?

I've an ICON T combi boiler - no further ID, sorry. Gets CH but no DHW. Help from another forum suggests Diver... [Read more]

Baxi Bahama 100 keep cutting out?

My dreaded boiler has not had 2 sets of flow switches, cleaned at least twice, new expansion vessel etc. The p... [Read more]