Will a Broken Heater Control Switch Affect Normal Driving?

[JocelynLynn]

Damage to the heater control switch will not affect normal driving because the car's air conditioning is an independent component. It only means the air conditioning won't heat properly. Impact of a broken air conditioner: If the heater fan uses a separate belt, it won't affect driving. However, if the heater fan shares a belt with other components (like the battery light), it may have an impact. Turning off the air conditioner: As long as the heater fan's clutch isn't stuck and still rotates, the issue is minor. If the heater fan clutch isn't rotating, the air conditioner should be turned off to prevent engine belt wear caused by the non-rotating clutch.