How Combi Boilers Work - Plumbing Tips

http://www.heatandplumb.com

This video covers how combi boilers work. How they heat water directly on demand and how they can save you money. For more information visit our website at http://www.plumberparts.co.uk

DIY

Category:

Education

Tags:

• how
• combi
• boilers
• work
• boiler
• plumbing
• plumber
• plumbers
• heat
• water
• hot
• taps
• flow
• demand
• information
• diy
• repair

[PROXIMASTARMAN]

hi james,

weve had a brand new Ideal Isar HE30 boiler for about 4 yrs and its been trouble free till now.

the hot water is still coming thru the taps but the central heating has stopped working. on the screen it has status = C and the blue burner light is blinking constantly. any advice on what the problem could be and if a diy fix is possible would much appreciated ?

thanks

[plumberparts]

@PROXIMASTARMAN Hi there, Is it a combi or standard boiler. I can't find literature on the Isar. Regards PP

[PROXIMASTARMAN]

@plumberparts im pretty shure its the combi boiler the model is ideal isar HE30.

theres a few of them on here but not with this fault.

[plumberparts]

@PROXIMASTARMAN Ok, when you open the hot tap do you hear a click from the boiler? It does sound like an engineer is going to need to have a look at it. It can be anything from a diverter valve to furred up heat exchanger. Let me know how you get on! regards PP

[benny5825]

What about the central heating?

[plumberparts]

@benny5825 Hi Benny, sorry for the late reply. I'm going to cover that part in another video. I just wanted to cover the hot water side as I'm constantly getting asked about it! Thanks for keeping me on my toes however and please subscribe. Regards James

[NearAbbeyRoad]

A plate heat exchanger has a very high "heat exchange" rate, not "heat recovery" rate.

[malachy1847]

@falacomleo Get / google the online service manual...and follow the 'Truth / Faultfinding Table' to locate possable faults...as there should be a guide to take you through how to recharge your system...

[PROXIMASTARMAN]

@plumberparts i was told by a number of people on the net that it sounds like the diverter valve could be stuck and it was.i little jiggle and bingo the heating is back on and still running after 2 hrs so if it happens again i know what to do. thanks for the imput.

[clivecwp]

Hi Benny, Good Video, My old Valiant Combi boiler is working fine except for recently when using the hot water the radiators are warming up! appreciate any advice,

Thanks

Clive

[02uche]

good stuff

[armorhelix]

Great video. Very informative. Thanks.