What is the error code for a valliant combi boiler?

Valliant Combi Boiler – error code F24 (plus other probs!) Discussion in ‘ Plumbing and Central Heating ‘ started by LollyPopStar, 19 Jan 2006 . This topic originated from the How to page called Problems associated with noises from the central heating system. Can anyone help me – or shed light on the mysterious workings of my Valliant boiler?

What causes the F24 code on a combi boiler?

IT MAY THEN WORK FOR SOME TIME. UNSCREW THE NTC`S AND CHECK BEHIND THEM FOR MOISTURE-THIS CAN CAUSE F.24, OR LOOSE NTC`S NOT SCREWED FULLY HOME INTO THE SOCKET. ANOTHER CAUSE OF F.24 IS LOW WATER PRESSURE – THE GAUGE SHOULD READ 1.5 BAR WHEN THE HEATING IS OFF/COOLED.

Are there any mistakes in the Catia system?

No panic, everything is tested, there are no mistakes in system, everything is triple checked… but still some luck is needed. RE: CATIA ‘never-do’ list (catia bad practices list) needed. #20: Never duplicate geometry within a sketch.

Why is my main Combi 30he DHW not working?

the central heating the boiler is trying to heat a supply of central heating water as well as the water inside the boiler. Result your hot water is luke warm. Diverter valve at fault. The rear manifold part of the diverter follows the front diaphragm, or at leat it should. When it becomes dirty it does not move the full travel or even at all.

How old is the Combi 30he DHW boiler?

Boiler is approx 5 years old and has been pretty reliable but recently I have noticed the hot water is not heating properly. This seems to be getting worse and is now to the point where I can now hold my hand under the hot tap when on fully. However if the heating is on the hot water does seem to heat properly and get very hot.

What are the installation and service instructions Combi 24 he?

Installation & Service Instructions Combi 24 HE These instructions include the Benchmark Commissioning Checklist and should be left with the user for safe keeping. 2© Baxi Heating UK Ltd 2011 Natural Gas Main Combi 24 HE G.C.No47 474 02 Building Regulations and the Benchmark Commissioning Checklist

Why does HW not work when CH is off?

That is correct HW works and gets properly hot when the CH is on. If the CH is off it only gets warm. Could the problem be with the diaphragm then or another part of the diverter valve?