Recently my blower motor has been noisy, when i turn it on it sounds slightly electrical, the fan still works it just sounds funny, should I replace it outright or is it repairable?

 

Does it ever stop working entirely? What do you mean by electrical but sounds funny? The squirrel cage may also have debris in it, but you'd have to remove the blower to find out.

Here's a super helpful video on electric motor troubleshooting if the blower cage is clean: