How to mend ... Boiler Central Dhw

repair of ravenheat 820/20 fan assisted combi-boiler?

central heating is working but no dhw.lot of banging and popping recently before failure.replaced diverter val... [Read more]

Valiant vuw 242/1e dhw fault?

Have a client with above boiler who's dhw would only work when there was a large demand-eg tap belting out. G... [Read more]

Why does my boiler go g-g-donk and then lock out?

My Chaffoteaux & Maury Britony combi has an intermittent problem. About a minute after turning hot water off, ... [Read more]

High pressure on my Optima Ferolli 901 central heating?

Hi, I have a Ferroli optima 901 . I had problms with the DHW and foolishly adjusted this on the mod gas valve... [Read more]

baxi 105e not changing over to central heating?

boiler appears to be stuck on hot water even though central heating his selected and time clock and thermostat... [Read more]

No Hot Water from Worcester 28CDi Combi?

I do not get any hot water when I open the hot water tap. The boiler is Worcester 28CDi Combi. The only way to... [Read more]

jaguar boiler 24kw?

i have heating no problem, but now iwant it off. i get no hot water. when i open the tap the boiler doesnt fir... [Read more]

No DHW from Alpha 240E?

I have an Alpha 240E Combi boiler which works great when central heating is on but DHW does not get hot when c... [Read more]

How can i fix my Halstead Ace Combi Boiler?

Domestic Hot water keeps locking out after 10 minutes. Checked all thermo's, cleaned the DHW and still nothin... [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]

no hot water protherm 80?

protherm 80 boiler intermittent fault on hot water, sometimes fires up fine and sometimes doesn't fire up wh... [Read more]

Is my Fan faulty?

After having problems with my boiler not supplying any DHW or CH the last couple of days i am of the opinion i... [Read more]

Heatslave 15/19 boiler - keeps kicking in?

i All, We have a heatslave 15/19 which was fine until a couple of days ago. A guy came round from the water... [Read more]

central heating not working?

I have a biasi 24s combi boiler. Dhw working but heating not working, flow pipe from boiler and first radiator... [Read more]

vaillant vcw-gb 242 eh not igniting to either heat dhw or ch?

boiler was drained to look at water valve diaphragm as central heating was not working (ie) diverter valve no... [Read more]

Ravenheat LS 100T no DHW?

First off I have had this boiler for 2 yrs now and never had a problem before, the other day all of a sudden I... [Read more]

Biasi boiler M90f.28s, thatwon't fire up!?

my combi boiler will give me dhw okish but the water temp knob and therefore the volume of gas to the jets r... [Read more]

Baxi 105e - Radiators heat up when dhw flowing?

When hot water (dhw) is flowing then the central heating system heats up as well. The Boiler is set to dhw on... [Read more]

Problem with Potterton 80e?

Potterton 80e DHW problem. When I turn on hot tap boiler does not start. If I turn tap off & back on about 1... [Read more]

Puma 80 overheats and shutsdown when DHW switched off?

This 8 year old Potterton Puma 80 has had first a new diverter valve fitted, and now a circuit board, but stil... [Read more]