The heater doesn't work, defrost works a little, fan doesn't turn on?
Hi there. The blower fan switch not working may be, a blown blower motor fuse (https://www.yourmechanic.com/services/fuse-replacement), a faulty blower motor relay (https://www.yourmechanic.com/services/blower-motor-relay-replacement), a faulty blower resistor (https://www.yourmechanic.com/services/heater-blower-motor-resistor-replacement), a faulty blower motor (https://www.yourmechanic.com/services/heater-blower-motor-replacement), and/or a faulty blower motor switch (https://www.yourmechanic.com/services/blower-motor-switch-replacement). Proper...