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We have 104 questions about mending 'water boiler black'

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Mend Heating, Home Heating Systems

which is the valve to increase my water pressure on my Optimax HE38C boiler?

Ihave F37 flashing on my control panel but cannot for the life of me tell which valve to turn.I have one black... [Read more]
Mend Heating, Home Heating Systems

black water discharging from hot tap?

i have an oil fired conniston combi boiler, and every time i open the hot water tap, black oily water discharg... [Read more]
Mend Heating, Home Heating Systems

Increasing water pressure in Ferroli Tempra 24?

Hi, I want to increase the water pressure in my Ferroli boiler (it's at ~0.2 Bar) but not too sure where to c... [Read more]
Mend D.I.Y, Plumbing

pressure guage low?

my guage for water pressure low how do i get pressuer to 1 bar .2 taps underneath boiler 1 yellow guess gas ot... [Read more]
Mend Heating, Home Heating Systems

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

pressure gauge falling?

the black needle on Glow-worm swift flow 80 combi boiler is low, but it also flickers when you turn on the hot... [Read more]
Mend Heating, Home Heating Systems

Worcester bosch highflow 400 combi boiler NOT working?

There is no water or heating in my flat.....the black arrow on the pressure gauge is at around 1.5....( it was... [Read more]
Mend Heating, Home Heating Systems

WORCESTER 28i Combi Boiler?

My boiler pressure indicaters- the black one- has dropped to below 1. Does anyone know if this means I need to... [Read more]
Mend Heating, Home Heating Systems

Water tap on Vokera boiler (circa 2001)?

Both the yellow and red lights are on (not the green one though), and I gather that I need to 'top up' the boi... [Read more]
Mend Heating, Home Heating Systems

My Glow worm Space Saver 50 boiler appears to have overheated?

The boiler was having trouble firing up on Saturday morning, this appears to have been solved by securing the ... [Read more]
Mend Heating, Convector Heaters

I have hot water but no heating - how can I fix this?

I have a combi boiler. The hot water is still working but the heating is not. When I looked at the pressure ... [Read more]
Mend Heating, Home Heating Systems

Pressure question?

I have a sime 80c format combi boiler. The pressure is all screwed up. On the dial the red hand is at 1 and ... [Read more]
Mend Heating, Home Heating Systems

Increasing the Water pressure on potterton puma 80!?

After bleeding my radiators as a few of them were cold at the top, the water pressure on my boiler has dropped... [Read more]
Mend Heating, Home Heating Systems

Why are the radiators not hot enough?

The pressure guage on the Potterton Boiler(4 years old) is marked 1 to 5, the red area is between 4 and 5. Th... [Read more]
Mend Heating, Home Heating Systems

what is the problem with my potterton 55 boiler?

have a potterton housewarmer 55.it roars on initial firing in morning then once reset fires OK.at the moment i... [Read more]
Mend Heating, Home Heating Systems

Vaillant TurboMAX plus 824E boiler problem!!!!!?

hi i have had the Vaillant TurboMAX plus 824E boiler for about 2 and a half years, and it seems to be leaking ... [Read more]
Mend Heating, Home Heating Systems

Help - I bled my radiator and now my boiler isn't working and it's freezing?

I bled one of my radiators as it was cold at the top but warm at the bottom, a fair bit of air came out, but n... [Read more]
Mend Heating, Oil Filled Radiators

how can I fix Camray 5 Oil Boiler belching black smoke ?

Oil boiler locked out when rean out of oil, now have plenty oil and boiler has been bled and started OK. It th... [Read more]
Mend Heating, Home Heating Systems

whats wrong with my boiler?

hi i have a ideal evo combi boiler and keep getting problems with the hot water side the plated vain unit keep... [Read more]
Mend Heating, Home Heating Systems

Potterton Puma 100e?

My boiler has the low pressure light on, so I turned the switch to off and bled the radiators (some black wate... [Read more]
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