“Safe to use a 3 prong adaptor? My outlets accept only 2-prong plugs. Is it safe to use an adapter to plug the 3-prong air conditioner plug into the 2-prong outlet? If so, is there any specific adapter better than the others? Could use of such an ungrounded connection cause a fire? Could it damage the air conditioner unit or other equipment into the same circuit? Do I need to have the outlet replaced?”
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Hello, The power cord is equipped with a three-prong grounding plug for protection against shock hazards. Your air conditioner must be used in a properly grounded wall receptacle. If the wall receptacle you intend to use is not adequately grounded or protected by a time delay fuse or circuit breaker, have a qualified electrician install the proper receptacle. Please do not use an extension cord or an adapter plug. Thank you.
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