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We have 328 questions about mending 'heat water system'

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Mend Heating, Home Heating Systems

heating only comes on if hot water on?

we had a new worcester greenstar boiler and system installed by british gas a few years ago. we have a control... [Read more]
Mend Heating, Home Heating Systems

Why does my boiler keep switching on and off?

The boiler is a Main HE condensing. The problem only occurs when Hot Water Only is selected. If run from stone... [Read more]
Mend Heating, Home Heating Systems

Variable hot water - Vokera Excell 80SP?

I have an issue whereby when in the shower, the hot water varies in temperature. Every few minutes the heat d... [Read more]
Mend Heating, Home Heating Systems

Promax 18 He Plus System will not turn off,?

If i turn the unit on from the fuse switch i get heating on i cant use the timer as the heat wont turn off if ... [Read more]
Mend Heating, Home Heating Systems

Worcester 28cdi plate heat exchanger?

I suspect this is leaking fresh cold water into the system which is an open system not pressurized. This is c... [Read more]
Mend Heating, Home Heating Systems

No heating or hot water on system boiler?

I have a system boiler and at present I am calling for heating and hot water and am getting nothing. the pilot... [Read more]
Mend Heating, Home Heating Systems

how do I refill my glow worm boiler or bleed it?

re-filled rads after installing additional rad. Bled all through - OK. Turned on pump - clanking and knocking ... [Read more]
Mend Heating, Home Heating Systems

Why has Heat Exchanger on IDEAL ISAR HE24 gone?

So... At the end of 2008 (early December, so about 4.5 years ago). We had central heating installed for the... [Read more]
Mend Heating, Home Heating Systems

Fault with ideal isar he 30?

My ideal isar he30 boiler keeps on heating the system when the programmer is off and goes to the preheat for t... [Read more]
Mend Heating, Home Heating Systems

MORCO feb 24 Boiler heats ok but locks out when temp reached?

I have a fault on my Morco feb24e boiler central heating - it's failing with fault code (no flashes) which say... [Read more]
Mend Heating, Home Heating Systems

Potterton performa central heating problem?

Hello, everybody. Since I dont want to be tricked by any plumber who might visit me in the future I'm looking... [Read more]
Mend D.I.Y, Plumbing

Permanent F5 fault?

I have a Glowworm 18hxi boiler with a Systemate 2000 Gledhill system. Boiler keeps failing with F5 fault. Ha... [Read more]
Mend Heating, Home Heating Systems

Ideal Combi Logic boiler "L3" fault. ?

Whenever the temperature knob is turned up higher than half way, the boiler shuts down, flashing L and 3. Have... [Read more]
Mend Kitchen Appliances, Dishwashers

I have a PABL DW602bi dishwasher that works but does not heat? ?

i have a PABL DW602bi dishwasher which works but does not heat the water or dry at the end of its cycle? Also... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Halstead Boiler (over 10 years old)?

My Halstead boiler is able to heat the hot water but does not heat up the radiators. Most times the radiators... [Read more]
Mend Heating, Home Heating Systems

DWH / Central heating BAXI Combi 80e?

When the radiators are up to heat I go to use the DHW, the system turns off and the fault light appears so I ... [Read more]
Mend Heating, Home Heating Systems

glowworm betacom 30 problem?

Hello folks, boiler is 2 years old, had plate heat exchanger cleaned/changed/cleaned...dhw sensor replace... [Read more]
Mend Heating, Home Heating Systems

what could be cause of heating problem?

i have an ariston micro combi 23 mffi boiler the pressure in system keeps dropping to zero , when i refill sys... [Read more]
Mend Heating, Home Heating Systems

Expansion tank hot?

Greenstar Ri boiler open vented system. When boiler switched on constant flow of hot water to expansion tank... [Read more]
Mend Heating, Home Heating Systems

clean heat exchanger vaillant ecotec 831?

hello, can anyone give me a idiots guide to removing, cleaning and replacing a valliant ecotrec 831 heat ex... [Read more]

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