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We have 71 questions about mending 'dhw boiler works'

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Mend Heating, Home Heating Systems

my vokera 20/80 has no dhw?

My vokera 20/80 has developed a dhw problem. The central heating works fine, however, when I open a hot tap, I... [Read more]
Mend Heating, Home Heating Systems

potterton performa 24 problem?

i have a potterton performa 24 boiler, from cold it works great but once up to temp it switches off, pump over... [Read more]
Mend Heating, Home Heating Systems

back boiler heating water but not rads?

my back boiler in my kitchin trips out after about five mins when trying to heat rads. It does not trip rcd ju... [Read more]
Mend Heating, Home Heating Systems

potterton performer 24kw HEcombi?

Hello ,is there any quallified heating engineers out there who may know wat this fault is. no hot water,the p... [Read more]
Mend Heating, Home Heating Systems

dhw? on combi boiler?

The central heating side of the boiler works but the dhw does not. If you run 2 taps for a while eventually th... [Read more]
Mend Heating, Home Heating Systems

Problem with CH only on Ferroli Combi 77 FF boiler?

Hi I have a ferroli combi 77 FF boiler which works fine on DHW and is OK the first time it comes on with CH. H... [Read more]
Mend Heating, Home Heating Systems

Halstead ace high burner problem?

I have a Halstead ace high combi boiler. I have replaced the diaphrams in the flow switch CH & DHW and removed... [Read more]
Mend Heating, Home Heating Systems

COMBIcompact wall mounted boiler problem?

Hopefully somebody out there can help me, my combi boiler is heating hot water for approx two minutes then the... [Read more]
Mend Heating, Home Heating Systems

Vokera boiler works in heating mode but not Hot water only mode?

I have a problem with my boiler it is a Vokera 20-80 RS flowmatic. The flowswitch tries to move but does not o... [Read more]
Mend Heating, Home Heating Systems

ravenheat ls 80t white star?

can anybody help out there my ch has stopped working recently after a few suggestions from yourselves ive twid... [Read more]
Mend Heating, Home Heating Systems

Hot water cutting out after 20 - 30 secs, but coming back on 20 secs after?

We have a Baxi Combi 80e boiler which fires up okay, but after about 20-30 secs the hot water goes cold. This... [Read more]
Mend Heating, Home Heating Systems

Brittony Combi SE Boiler leaking, no DHW?

My Brittony Combi SE Boiler lpg is leaking at the 3 way valve. The DHW works with the CH on but not without it... [Read more]
Mend Heating, Home Heating Systems

hi have vailiant turbo max vuw?

the boiler dosent fire up when i demand for DHW and CHW,even wen i turn off and then turn on the pump works bu... [Read more]
Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

I have a chaffateux 80 boiler cuts out on CH mode?

I have a chaffateux 80 boiler, the dhw works ok but when CH goes out after a few minutes. It goes back on when... [Read more]
Mend Heating, Home Heating Systems

Potterton Puma 80 - No hot water?

Potterton Puma 80 works fine with central heating, but without CH on, it does not produce hot water. At hot wa... [Read more]
Mend Heating, Home Heating Systems

Intermittant Boiler opeartion?

Good morning, Friends of mine have a Vailant Turbo Max 828E, they say heating apparently works fine however... [Read more]
Mend Heating, Home Heating Systems

combi boiler probs now and then?

When switched on, the fan works for a short while, it doesn't ignite. and the DHW indicator light flashes fast... [Read more]
Mend Heating, Home Heating Systems

what is my problem with boiler?

i have a glow worm compact 80e boiler the problem is that i dont have hot water ,sometimes it works and someti... [Read more]
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