Looking for a little help with my Dakota's issues.

I bought my truck (a '94 Dakota) 3 years ago without any AC. Didn't bother me; I don't usually use AC anyways. So long as the truck had heat, I was happy. Now that it's getting colder in my area, I went to turn the heater on this morning and realized that doesn't work now. I am planning to take out the resistor block and thermostat, but is there anything else I should look for?

Thanks for any help.

 

Whats the problem? Is the fan not turning on? or is it blowing but not blowing hot? etc

 

Sorry, forgot the vital issue lol. It does nothing. No blowing and no heat emitting at all.

 

Check the fuses and relays, but the blower motor is probly defective.