Electrical – Convert USB powered lamp to a remote controlled lamp

Taking the information you have given us, what you are describing doesn't make sense. The only way you could connect the fan without it operating on the switch is to bypass the switch, if it is a mechanical switch (not a controller from the previous fan). Meaning you have somehow tapped the line side to the switch and disconnected the switch leg returning to the fan.

You need to take a voltage tester and check which wire is the switch leg and which wire is the line side hot to the switch by turning the switch on and off and seeing which one is permanently hot and which one is the switch leg and reconnect them to reinstall a mechanical switch.

If the switch was a controller installed for the previous fan, you need to replace it with a standard mechanical switch.

Happy new year and good luck.

Electronic devices are subject to damage by electrostatic discharge (ESD). Walking across a carpeted floor can create a potential of 25,000 volts. To estimate the voltage, note how far a spark jumps from a finger to a grounded object, e.g. a wall-switch screw): a rough guide is ~1,000 V/mm or ~25,000 V/inch.

That said, reputable manufacturers include ESD protection to thousands of volts and high pulse currents in consumer electronics. Though you can protect the device by reducing nearby ESD (using antistatic spray on carpets, room humidifiers, etc.), a well-made capacitance switch should not fail from a small spark. You might try a different brand of touch-control lamp. [The ones I use have lasted through about five years of cold, dry winters with many finger-to-lamp sparks. ouch]