Hi,
I've a Honeywell smartfit 2 channel 24 hour programme controller which has started showing an F3 error code yesterday and we now have no heating or hot water. Can anyone shed any light on what this code means as internet searches reveal nothing.
We've had someone out to look who's suggestion is to replace the unit but I'd really like to know the meaning of the error code before shelling out on a new unit.
Thanks
I've a Honeywell smartfit 2 channel 24 hour programme controller which has started showing an F3 error code yesterday and we now have no heating or hot water. Can anyone shed any light on what this code means as internet searches reveal nothing.
We've had someone out to look who's suggestion is to replace the unit but I'd really like to know the meaning of the error code before shelling out on a new unit.
Thanks