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Mend radiator thermostatic stuck
1

One radiator in a bedroom is always cold?

One radiator in a bedroom is always cold. It used to work fine. I have tested the thermostatic value and the... [Read more]
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Sabre 29 water pressure drop?

sabre 29 water pressure dropped, how to increase the pressure
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Worcester Greenstar CDi boiler won't fire up the central-h?

flashing green light near the CH select button new batteries in transmitter
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Mend Highflow 400

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We have 56 questions about mending 'highflow 400' in category Heating, Home Heating Systems

How to mend Highflow 400

Pages 321
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 radiators heating heat exchanger
1

How can I get veirfy my radiators are operating properly?

MY Worcestero Bosch high flow 400 had not been working for the past month. Recently the Heat exchanger and pu... [Read more]
Mend boiler leak water
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 heating bosch system
1

my worcester bosch Highflow 400 will not ignite?

my worcester bosch Highflow 400 will not ignite.
Mend Worcester Central Heating Hot Water

hotwater problem,worcester highflow 400?

c/heating gets hot when i turn the hot tap on.
Mend pressure heating boiler
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 boiler heating bosch highflow
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 boiler heating engineer
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 Worcester Heating Pressure
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 central heating Worcester Bosch pressure
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 boiler heating pressure
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 boiler heating leak
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 replacement 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 heating 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 boiler leak pressure
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

Remove cover off gas boiler?
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Greenstar 24Ri boiler, fast flashing - can I reset?
Mend radiator thermostatic stuck

One radiator in a bedroom is always cold?
Mend Heating, Home Heating Systems

How do i stop the time from flashing on the Siemens RDJ100RF?
Mend Worcester Combi Ignition

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

Worcester boiler dripping water?

How to mend ...

Mend Alpha Mend Alpha Heating Mend Apollo Mend Ariston Mend Baxi Mend Bermuda Mend Berry Mend BIASI Mend Bosch Mend Boss Mend Boss Therm Mend Boulter Mend British Gas Mend Britony Mend Brittany Mend Brittony Mend Camray Mend Cannon Mend Canon Mend Celsia Mend Chaffoteaux Mend Chaffoteaux & Maury Mend Concord Mend Crane Mend Danfoss Mend Digistat Mend Dimplex Mend Drayton Mend Ecomax Mend Ferroli Mend Fertech Mend Firebird Mend Flexicom Mend Glow Worm Mend Glow-worm Mend Glowworm Mend Grant Mend Grundfos Mend Halstead Mend Harcal Mend Heatline Mend Heatslave Mend Honeywell Mend Horstmann Mend Hydroline Mend Icon Mend Icos Mend Ideal Mend Isar Mend Jaguar Mend Johnson & Starley Mend Keston Mend Kingfisher Mend Kohlangaz Mend Landis & Gyr Mend Lifestyle Mend Linea Mend Main Mend Medway Mend Modena Mend Morco Mend Myson Mend Netaheat Mend Ocean Mend Optima Mend Potterton Mend Powermax Mend Prima Mend Promax Mend Protherm Mend Pulsacoil Mend Puma Mend Randall Mend Ravenheat Mend Remeha Mend Riello Mend Sabre Mend Saunier Duval Mend Servowarm Mend Siemens Mend Sime Mend Stelrad Mend Swift Flow Mend Switchmaster Mend Thorn Mend Thorn EMI Mend Tiger Mend Trianco Mend Vaillant Mend Valiant Mend Viessmann Mend Vizo Mend Vokera Mend Vulcan Mend Worcester Mend Worcester Bosch

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