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are u gas safe registered????? you should never use wd40!!!!!, if the rod is sticking then the bush may be worn. replace it

if the fan does cause combustion issues then the fan should be removed for safety reasons.

no worries mate, where is your hot water cylinder?

hi, had a few linea 24's that block very quickly, talking about a few months, we powerflushed system(which was working fine, no cold spots) an still plate blocked up. had to strip all manifolds and pipes from boiler and sonic cleaned them, no problems since

hi, you should be looking for a silver braided pipe which connects to 2 pipes on your system, looking at your pics you'll prob find them by the hot water cylinder. is it an unvented system??? if so there will be a red expansion vessel there and it is normally situated under there with a pressure...

Steve, doesn't matter how many times you've mentioned using an RGI, you have still to some degree advised on how to fix a gas related problem to an OP!!!!!!!! :roll:

Hi mate just thought i'd warn you that the unvented cylinder you have is nothing like the old open vented cylinders and that someone with the qualifications and know how should be called as a previous thread has advised!! cos the mess these unvented cylinders can make if they explode due to...

looks to me to be a restriction of some kind, have you taken rad valves apart to check water flow through them?

depends on age of existing pipework as to wether you keep it on a sealed system, cos if they are old and get it power flushed as it should be with a new boiler install, bad joints could be exposed and leaks pop up all over!!! as to copper or plastic...... too many installers use the wrong...

temps and flow rates need to be checked per manufacturers instructions before replacing parts

not usually the case for me!!lol

did your daughter move into the flat recently or a few months ago before the temperatures started to drop?

nearly all combi's suffer hot water issues when it gets quite cold out and the water temperatures fall dramatically, it's just the way they work!! but,.. if its getting worse than in previous years then the plate heat exchanger could be getting restricted and needs replacing or cleaning out!!

by taking off the combustion cover you are disturbing something gas like!!!!it's the ""combustion cover""""", not advisable to take off, cos it's illegal for you to do so. also i tend to agree with the pump cos there is a lot more resistance in pumping round the boiler via plate hex than through...

best bet is to get someone to replace the prv cos if you keep pressurizing the boiler with fresh water it's not going to take long before your system starts reacting and producing slugde(magnetite), then your problems will start.

Hi there, how old is your boiler buddy, cos if the parts are still available then a manufacturers visit or bg visit would be the best option if you don't want the xpense of a new boiler yet, but, if the boilers 15+ years then although vaillant is a good quality boiler perhaps a new one maybe the...

get a proffessional in to do it, as earlier chap says it does need skill to do it properly!

Hi there, just to let you know that if you do call the gas emergency services, yes they'll be there very very promptly! but, all they will do if there are no visual signs of distress to the gas aplliance(s) is turn off your gas meter control handle and advise you to call in a gas safe registered...

hi, hot water issues on combi's are rife in cold weather, they come thick and fast, does the water stay hot if you throttle the tap back to get a slower rate of water? or does the boiler fire up and shut down repeatidly?

follow the cold inlet pipe into the boiler(make sure electric and water are isolated--!!!) that will lead you to flow switch. these types of switches normally only require to be cleaned out as the magnet inside gets built up with deposits but either way cheap part, easy job