Faulty Heater Blower

[radint16]

I have a c4 2005 and the blower comes on when I start up.When switched off for 5mins it won't work.leave another few mins. and it will work again.Functions like this all day long on and off alternately. Any ideas anyone?Many thanks

[paul.h]

Possible faults could include a loose wiring connection, speed control resistor, blower motor.