there is hot water but no heating . the fault code is S30 - no external heat demand . It has never gone wrong before . Heeelp please ....thank you

anandamurthi, December 2012

if u have a timer or thermostat check it as it most likely causing the heating not to work. as it saying the boiler is not heating because there is no call from the thermostat or timer for heating to work. if u dont know much get an engineer in it will be a easy fix for them.

kash, December 2012