hi can some one help with what mite be wrong with the heating in my ka its blowing out cold air only thanks

Common fault that causes this on KA and fiestas is the heater valve under the scuttle accessed under the bonnet, it will need replacing, about £ 45 supply and fit.

there should be a dial with like blue and red- point it at the red please

Keep it constructive please.

Theres a three port valve which controls the hot water and is controlled by a thermostat. This often fails. They are readily available on flea bay

i know this sounds stupid but there is water in the expansion tank isnt there .no water equals no heat just checking

Check your water level, I bet its low.

It could also be the thermostat stuck open not allowing the water to heat up, had this on a focus.