Hi,

I have a '95 Mazda 323 1.3, the heater fan just stopped working, I checked the fuses and they are still fine, is there any wires or plugs in the engine bay that could have plugged out or stripped off. any suggestions?

 

I don't think there is anything under the hood regarding your heater fan circuit. You need to brake out your Voltmeter and track the circuit to see where the power stops.
There should be a switch, a relay, a resistor and a motor. And of course the circuit is not completed until it goes back to ground.