hi i have a valiant thermocompact boiler with arinston presure hot water cylinder my boiler keeps on running when timer says its off and it fires up for 5 seconds and goes off i have pressed th i button and comes up with s7 code then s3 and s4 it is very confusing any help please icon_cry.gif
valiant compact boiler keeps running when timmer is off
- Thread starter ZIGGY786
- Start date
Sponsored Links
the heating is fine hot water is fine cant understand what is is?
frost/pipe stat?were is it on the boiler please as i have spent £200 beacuse some one said its the external wiering as the boiler was instaled in 2004 and was runing fine until they changed the expansion vessal due to loosing presure now its running when the timmer shoes its off i have changed them timmer diverter valve and 2 honney well zone control valve also its had a new pump fitted by valiant as its under waranty 
Sponsored Links
inside in the kitchen
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
