How to mend ... B Dhw Out

Worcester combi 240?

After you draw off DHW the pumps cuts in to remove residual heat, but at times it continues to run and the boi... [Read more]

My Alpha combi boiler has very low water pressure at the DHW hot tap?

My Alpha Ocean 280p Combi Boiler has a very low DHW pressure and flow. I have checked the cold water inlet fil... [Read more]

CH and DHW running when switched to timer off and DHW only???

I have a Britony Combi 80 (chaffoteaux) that the Central heating comes on when switched to DHW only or both! I... [Read more]

ravenheat 24t ls 80t white star?

boiler is a 15 months old the water started going very hot then cold the3n hot then cold at fairly low tempera... [Read more]

Glow worm Compact80e hot water failure?

Intermittent failure. Shower sometimes fails to deliver hot water. If tap turned on then delivers. Suggeste... [Read more]

Worcester 28CDi Intermittant hot water?

When running hot tap hot water keeps going cold for a few seconds then comes back on. Watching the lights on f... [Read more]

Worcester 9.24 Strange Problems?

Hi, Can anyone help with my problem. My Heatslave 9.24 seems to have a mind of it's own. Sometimes it will not... [Read more]

CH OK no HOT WATER on Vaillant Turbomax Plus 824E ?

Central heating works fine, but not hot water on any taps. When I turn the taps warm water coming for few SECO... [Read more]

Vaillant VCW GB 242 EH - burner keeps burning with Heating off and DHW Off?

DHW works fine, Boiler on with tap opened, off with tap closed, but reignites after a few seconds on low flame... [Read more]

DHW problem Vaillant Turbomax Plus 828E?

If I open the cold water supply valve to the boiler fully, when drawing hot water the temp. rises to approx 83... [Read more]

vokera excel 80 E combi does not give hot water in DHW mode?

It gives hot water in the taps only when CH mode. Some times in DHW mode it attempts to fire and the fan may c... [Read more]

Fixing a Baxi 105e Combi which reports a fault when cold, works when reset?

Hi - this has baffled me and the heating engineer I've called in to look at it. My Baxi 105e has been reportin... [Read more]

No DHW?

I installed a new pump, on SIME 102 super, central heating is fine but domestic hot water doesn;t work

how can i fix my BIASI 24s combi?

central heating system works great.But the dhw does not always come on. We have to turn it on and off a few ... [Read more]

Ferroli Modena 102 DHW not regulating?

The hot water is always very hot even at the lowest thermostat setting, will it be a faulty thermister or some... [Read more]

britony combi 100?

britony combi 100.boiler in DHW mode all the time therefore the CH doesnt come on?

how can i get my sime 80 friendly format to ignite?

how can i get my sime 80 friendly format to ignite . I am quite familiar with parts of the boiler but it just ... [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]

DHW pressure dropping after tap turned on?

Boiler: Baxi Genesis 80. About 15-45 seconds after the hot tap is turned on the flow will slow to a trickle a... [Read more]

What`s wrong potterton puma 80?

System lock-outs, Low system pressure System over pressures, sometimes no water flow through heating system b... [Read more]