Nissan Repair Questions? Ask a Mechanic for Answers ASAP
It sounds to me like the blower motor have overloaded the resistor with amperage and burnt out the resistor. The recommended fix for it would be to replace blower motor and resistor. The quick cheap but incorrect fix would be to just replace resistor.
Are you still in need of assistance? If not would you mind to please rate and except as this is how we are compensated.