Does anyone have any idea why my heater fans make this noise on 4, less intense but still noticeable on 2 upwards. Takes ages to warm up and clear my windscreen!! FAN NOISE!

Hey guys, So I’ve had this intermittent fault for a while now where occasionally my blowers won’t put out any air at all, it used to happen occasionally but recently it’s been non stop. I pulled the motor out and it looked fine and then pulled out the resistor and found the connector was badly...