By Chris Walters If you are doing A/C repair and you hear someone referring to “beer can cold” you should run the other way. Beer can cold is an old term that describes a 40-year-old charging technique. It wasn’t proper then and its completely unusable now. Unbelievably some companies still use this technique today. Chris Walters You should know that air conditioning has evolved a lot over the past 40 years. Remember that in the… Read More