"test" and "reset" buttons are commonly found on the plugs of ground-fault circuit interrupter (GFCI) outlets, not air conditioner plugs. GFCI outlets are designed to protect users from electrical shock in areas where electrical devices could come into contact with water, such as in kitchens, bathrooms, and outdoor locations.
Here's how they work:
Test Button: The "test" button is used to check whether the GFCI outlet's circuitry is functioning correctly. When you press the test button, it simulates a ground-fault condition and should immediately trip the GFCI. This means that power to the outlet will be shut off to protect against potential electrical shock hazards.
Reset Button: After pressing the "test" button and tripping the GFCI, the "reset" button is used to restore power to the outlet. It re-establishes the electrical connection after the test and confirms that the GFCI is ready for normal use again.
If the GFCI outlet fails to trip when you press the "test" button or fails to reset properly, it may indicate a problem with the GFCI outlet itself, and it should be replaced by a qualified electrician.
If you are referring to newer types of air conditioner plugs with built-in GFCI features, this information would still apply. However, it's essential to follow the manufacturer's instructions and safety guidelines for the specific model you have. Always prioritize safety when dealing with electrical appliances and outlets.