No, it is not normal for a light switch to turn the air conditioner on and off like a light. Air conditioners and light fixtures are typically wired differently and require different electrical connections to function properly.
A standard light switch is designed to control the flow of electricity to a lighting fixture, allowing you to turn the light on or off. Light switches are usually rated for lower electrical loads since lighting fixtures consume much less power compared to air conditioners.
On the other hand, air conditioners require a higher electrical load to operate, and they are typically connected to a dedicated circuit that can handle the power requirements of the air conditioning unit. Air conditioners usually have their own dedicated power switch, either built into the unit itself or on a separate wall-mounted switch.
Attempting to use a standard light switch to control an air conditioner can be dangerous and may lead to electrical issues, including damage to the switch, overheating, or even electrical hazards. If you have an air conditioner that is being controlled by a light switch, it's essential to have it corrected by a qualified electrician. They can properly install the appropriate switch and wiring to ensure the safe and reliable operation of the air conditioning unit.