Nissan Micra K10 1988 plate, heater blower?

If your fan is working on every setting then it isn't your resistor at fault,firstly check you have coolant in your system,look into the reservoir,give the motor a rev and check you have circulation to test your water pump,also check your system is getting up to temperature,if so then a likely culprit will be your heater control valve,not sure on yours but some are cable operated but a lot of modern motors now are electrically operated,check it is not seized preventing circulation into your heater radiator,good luck

cdc
November 2014