Ford Mondeo Zetec 2003. Heater or Aircond not working?

The fan is working fine and the temperature of the car is fina too but as soon as I turn the heater on the temperature of the car drops and the same happeneds with the air conditioning.

Any suggestion

The switch board may be faulty Ford Mondeo Zetec 2003. Heater or Aircond not working - 1

Please finish the statement. "Any suggestion" is open ended and it appears you want to write something you forgot. Why do people do this lately on this site? All sentences must have a punctuation mark. If this Ford is "fina" then why the question? When I have car issues I go to a mechanic.

Hi it is not true air conditioning. You only get that in quality cars and not in a ford.
so given the heater blower needs to be running for the cold draught to be flowing. Which causes more people to get ear ache.
so after over 11 years it is highly likely a ford car would have lost it's cold draught system.