No Heat From Heater

[hammerman]

My wife tells me this morning...with about 2" of ice on her car and not a bottle of de-icer in sight, that her car (Fiesta) heater hasn't worked for a few weeks.

Start with the thermostat ? and then...... ???

Many thanks

[TWR]

To Start with, is there any coolant in the System & do you have antifreeze in it?
With the Engine running go under the Bonnet & feel the heater pipes, are they Hot?
If yes, Air Lock in the System,
Does the Heater with the Controls in the Hot Position, go Hot / Cold /Hot / Cold?
If yes that indicates an Air Lock.
Try the Thermostat if all else fails.

[Hopkirk]

Apparently heater control valve failure is a common problem with Fiestas

http://www.honestjohn.co.uk/forum/post/index.htm?t=45787

[chas2008]

as hopkirks says probably heater valve, very common problem(depending on year) and an easy fix
http://www.ebay.co.uk/itm/Ford-Ka-Heater-Control-Valve-Fiesta-StreetKa-Puma-Transit-OE-Quality-7N2118495AB-/321495849175?pt=UK_CarsParts_Vehicles_CarParts_SM&;fits=Car+Make%3AFord&hash=item4adaa558d7#ht_721wt_721

[Hopkirk]

In my experience buying copy parts off ebay is an expensive mistake
(- buy cheap, buy twice)

I recommend getting genuine Ford parts.