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Mend 30 boiler fire flashing
2

Worcester 30 Cadillac combi boiler won’t fire up and the EA?

my worcester 30 cdi combi combi boiler wont fire up and ''ea'' keeps flashing? my worcester 30 cdi combi bo... [Read more]
Mend Heating, Home Heating Systems
1

Greenstar 24Ri boiler, fast flashing - can I reset?

Greenstar 24Ri boiler won't light and the blue light is fast flashing. From the manual I can see that the iss... [Read more]
Mend Heating, Home Heating Systems
1

Oil fired boiler thermostat?

I have a Velaire 110/135 oil fired domestic boiler. I think the boiler thermostat may be faulty. The manual sa... [Read more]
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Mend Highflow 400

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We have 51 questions about mending 'highflow 400' in category Heating, Home Heating Systems

How to mend Highflow 400

Pages 321
Mend boiler water heating
6

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 worcester gas boiler help

Worcester Bosch Highflow 400 Gas Boiler?

Hi Wonder if anyone can help. My WB HF400 boiler occassionally starts 'clicking' repeatedly. When I look at t... [Read more]
Mend remove worcester bosch
1

How do I remove the top cover from Worcester Bosch Highflow 400?

Something is leaking, I can hear the dripping, and yes there is water seeping down to the kitchen below. I ... [Read more]
Mend worcester highflow 400
1

my worcester bosch Highflow 400 will not ignite?

my worcester bosch Highflow 400 will not ignite.
Mend hotwater hot turn

hotwater problem,worcester highflow 400?

c/heating gets hot when i turn the hot tap on.
Mend boiler day water
1

my boiler needs to be topped up each day ?

why does my highflow 400 keep dumping the water out of the over flow and need to be topped up each day.
Mend making loud noise hot
1

bosch highflow 400 making loud hissing noise?

my boiler is making a loud hissing noise and the pump is very hot and it cuts out when heating or hot water is... [Read more]
Mend pressure bosch combi boiler
2

how do I increase the pressure on worcester bosch highflow 400 combi boiler?

I have a worcester bosch highflow 400 combi boiler, about 14 years old. The hot water cuts in and out when the... [Read more]
Mend pressure hot tap
2

How can I reduce the pressure in my boiler?

After messing around trying to replace a hot water tap, I notice that the oressure gauge on my Worcester Highf... [Read more]
Mend fault worcester boiler hot
1

any ideas what the fault is?

I have a Worcester Bosch Highflow 400 boiler. The hot water works fine, the problem is the central heating. Th... [Read more]
Mend combi worcester hot cold
1

how can i fix my combi highflow 400?

my combi worcester 400 highflow when running hot water it will not maintain the temp goes cold then hot very e... [Read more]
Mend worcester rsf water
2

How can I fix my Worcester Highflow 400 RSF no hot water or heating?

Heating & hot water just went off. The pressure gauge shows 0 not sure how or if I need to increase the pressu... [Read more]
Mend electronic water heating
3

worcester highflow 400 electronic - hot water question?

I have just bought a property with the above heating system. I understand this is a combi boiler, however in t... [Read more]
Mend help round side
1

can you help me with my worcester highflow 400 electronic combi ?

Just been round side of house and noticed pipe coming out the wall from back of combi is leaking water, please... [Read more]
Mend Heating, Home Heating Systems
2

replacing heatbank on worcester highflow 400?

has anyone replaced the heatbank on a worcester highflow 400of was it a nightmare job!
Mend boiler turn turns
1

how can i fix my boiler?

the boiler fires up ok but when i turn the c/h on it turns of after about 10 mins. boiler is worcester bo... [Read more]
Mend water worcester combi system
1

Add water to sealed Worcester Bosch Highflow 400 combi boiler?

As the sealed system does not have an expansion tank, we are looking for a screw to turn 90 degrees to let wat... [Read more]
Mend boiler tap radiators
1

highflow 400 combination boiler?

when i run the hot water tap the radiators warm up but the tap warter stays cool
Mend front pipe water
1

i have a highflow 400 and the pressure is at zero?

i have a highflow 400 and the pressure is at zero , i cannot locate the stopcocks with the front off and dont ... [Read more]
Mend water worcester leaking boiler
2

I have a water leak from my Worcester Bosch 400 Highflow electronic?

Water is leaking from somewhere inside the boiler housing,running out underneath. I can hear a dripping noise... [Read more]
Pages 321

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Mend Heating, Home Heating Systems

Siemens RDJ10RF thermostat problem?
Mend remove cover front

Remove boiler cover?
Mend Heating, Home Heating Systems

Oil fired boiler thermostat?
Mend 30 boiler fire flashing

Worcester 30 Cadillac combi boiler won’t fire up and the EA?
Mend Heating, Home Heating Systems

Remove cover off gas boiler?
Mend Heating, Home Heating Systems

Greenstar 24Ri boiler, fast flashing - can I reset?
Mend worcester boiler radiators months

Worcester boiler dripping water?
Mend Heating, Home Heating Systems

How to fix my fireplace?
Mend vaillant f22 water hot

Vaillant ecotec 831 plus?

How to mend ...

Mend Baxi Mend Bosch Mend Boulter Mend Britony Mend Dimplex Mend Drayton Mend Ferroli Mend Halstead Mend Heatline Mend Kohlangaz Mend Myson Mend Potterton Mend Remeha Mend Siemens Mend Switchmaster Mend Vaillant Mend Vokera Mend Worcester

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