An IR remote control device won’t work if there’s an object blocking the beam. The limitation of infrared technology is that it can only be used over a relatively short distance and in the line of sight. The infrared beams of light are invisible to the naked eye. A remote control emits pulses of infrared light and those pulses are detected by a receiver, usually situated on the air conditioning unit itself. Most air conditioner remote controls rely on infrared technology (IR). Knowing how to differentiate between air conditioner remote controls that you can fix yourself and ones that need expert help can save you money, and possibly your life. You tend to take it for granted…until it stops working. Your air conditioner remote is a godsend in the hotter months of the year, allowing you to easily adjust the temperature with minimal effort. Nowadays, they’re so commonplace that it’s not unusual to have at least half a dozen different remote control devices around the house. A remote control would have been regarded as an instrument of black magic or witchcraft. Only a few hundred years ago, no-one would have dreamed that you could control something without even touching it.
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