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Mend Going Ch Dhw

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We have 231 questions about mending 'going ch dhw'

How to mend ... Going Ch Dhw

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Mend Heating, Home Heating Systems

Potterton Promax 15HE Boiler -relay clicking problem?

Hi, Need some help please. A 6yr old Potterton Promax 15HE on an unvented boiler installation has suddenly st... [Read more]
Mend Heating, Home Heating Systems

why does the DHW work and not the Central Heating Worcester 24i rsf combi ?

the pressure is fine the boiler fires up when you run the hot water but the CH is not working. Have put it on ... [Read more]
Mend Heating, Home Heating Systems

ferroli modena 80e lockout?

Hi.when i call for dhw or ch boiler goes straight to lockout..i have a clicking sound from gas valve solenoid ... [Read more]
Mend Heating, Home Heating Systems

problem worcester 24i rsf?

boiler will not ignite for ch in the morning,ignites for dhw after turning hot water tap on/off then ch will w... [Read more]
Mend Heating, Home Heating Systems

britony combi 80 no CH!!?

i have a britony combi 80, it works fine for DHW but when heat is called for the CH it goes through the sequen... [Read more]
Mend Heating, Home Heating Systems

Vaillant VCW GB 242EH combi boiler?

CH flame failure due to low water pressure. re- pressurised but wont ignite. pump , fan & DHW working OK
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

ch ok dhw works intermitantly or not att all raven ls80?

changed flow senser manuel saysmicro switch on shunt valve no shunt on parts list
Mend Heating, Home Heating Systems

Vaillaint COmbi boiler CH turns off after 1minute?

My mumz Vaillant combi boiler (18yrs old) ignites for CH demand then the flow heats up, Return remain cold...a... [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

Potterton Netaheat 10/16 Electronic Boiler?

When switching for ch/dhw boiler tries to fire up but intermittently fails, I can hear like a sloshing, there ... [Read more]
Mend Heating, Home Heating Systems

Ideal isar combi stuck in DHW, won't fire?

Hello Does anyone know much about Ideals? Mine is stuck in dhw, it isn't firing (no fan no pump either).... [Read more]
Mend D.I.Y, Plumbing

Installing drain off valve?

Hi, I have just bought a 3 bed bungalow and am intending to install a new CH / DHW system via a combi. I ha... [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

ideal classic combi nf 280?

ch overheat stat keeps tripping.water temp gets very hot while showering and then trips, does not matter if se... [Read more]
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Ariston Genus loss of pressure?

Boiler is losing pressure & faults out daily. I have recharged the expansion vessel for CH which seems ok. I... [Read more]
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Worcester bosch 24i not going ON automatically?

Hello, I want to share how i fixed my boiler - worcester 24i. Issue: the boiler would not go on when... [Read more]
Mend Heating, Home Heating Systems

no dhw or ch?

havent got any of the above but boiler is firing and pump is running on my worcester 24si11
Mend Heating, Home Heating Systems

worcester 24i rfs combi problem?

i have fault with my 24i combi. when demand on either ch or dhw is on, the boiler fires, lights but keeps on s... [Read more]
Mend Heating, Home Heating Systems

Baxi Combi 80Eco no DHW?

Hello, I have recently bought a house with a relitively new central heating system. The boiler is a Baxi Co... [Read more]
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