How to mend ... B Dhw Out

you may need to do drawings before you answer this one ?

This one will put you to the test…….. I have came across an situation in a pub/restaurant where I have a ... [Read more]

No dhw or heating ?

i have a heat line vizo combi boiler, i have no dhw or heating, theres a red light flashing above an icon(i do... [Read more]

Vaillant TurboMax Diverter Valve problem?

I'm sick of repairing this TurboMax. First, a history of problems. The diverter valve, then a switch on th... [Read more]

ideal isar he 24?

ideal isar he 24 dhw open tap to draw hot water the boiler fires up and pump is running fine, it can take 20... [Read more]

biasi 24 s?

I my boiler is not reaching temperature. when it calls for heat to either dhw or heating the boiler fires up f... [Read more]

Vokera Compact 28 turning on and off?

Hi I have a problem with a Vokera Compact 28 When heat is demanded, CH or DHW the boiler goes through its c... [Read more]

baxi 105e?

the push rod on the dhw differential valve will only operate the microswitch when heating is on also pressur... [Read more]

DHW Flow switch?

DHW Flow Switch

Problem with Ravenheat RSF 820/20 combi boiler?

I have just drained the hot & cold water from the system, when re-filled the central heating works fine, but t... [Read more]

Alpha CB24 no hot water?

Am I right in thinking it is the diverter valve or DHW flow switch that is the problem? Green light bleeps, bu... [Read more]

hot water not firing when required?

dhw not working when required on third dhw thermistor so this time checked the micro switch on three way valv... [Read more]

halstead ace high ( combi)?

does not get very hot on hot water unless taps turned very low have checked dhw heat exchanger no leaks clean ... [Read more]

DHW flow switch sticking/leaking?

I hope someone can give me some ideas? I have a Halstead Finest Gold and I am experiencing a problem with the ... [Read more]

while running hot water boiler runs hot & cold for the duration tap is on?

tested gas supply 21 mb flow rate 12 ltr removed heat exchanger dhw clear changed both ch &dhw sensors checked... [Read more]

my biasi boiler is working on dhw, but on ch it is working very slowly?

my biasi boiler is working on dhw, but on ch it is working very slowly, the returns are cold, the ch system se... [Read more]

Correct fitting of diaphragm kit for Baxi 105e combi boiler?

Ordered and fitted a DHW diapragm kit for my Baxi 105e combi-boiler. Only slight worry is that I have a tiny o... [Read more]

DHW?

I have a vaillant turbomax the central heating workes ok but when I call for hot water the burner goes on the ... [Read more]

No hot water on Worcester 28CDi?

I have a Worcester 28CDi combi. The CH works fine but the DHW has a problem. When i open a hot tap the red lig... [Read more]

No CH on baxi 105e?

I have got no CH on baxi 105e DHW is fine.Neon light is on but nothing seems to happen,thermastat is operating... [Read more]

Ariston euroCombi SX20 DHW temp variable?

I have a 10 year old plus SX20 EuroCombi - recently serviced by Corgi Engineer and declared to be in good work... [Read more]