Articles Tagged with ''air conditioning troubleshooting''

The Air Conditioning Contractors of America Educational Institute (ACCA-EI) Standards Task Team announced that the American National Standards Institute (ANSI) has recognized the new ANSI/ACCA 14 QMref - 2015 (Quality Maintenance of Commercial Refrigeration Systems) standard.  

Bob and Tim were on a job where one of the other technicians had been having a hard time with a persistent leak. He thought the leak was somewhere in the indoor unit, but he could not pinpoint it.

The Air Conditioning Contractors of America Educational Institute (ACCA-EI) Standards Task Team (STT) announced an American National Standards Institute (ANSI) public review period for its BSR/ACCA 14 QMref -201x, “Quality Maintenance of Commercial Refrigeration Systems,” as a new industry standard. 

Bob and Tim were on their way to the shop on a hot Friday afternoon when Bob got a call on his cell phone from his wife who said, “The air conditioner is not working and my mom and dad are coming from out of town tonight. What are we going to do?”

Every year The Hartford Steam Boiler Inspection and Insurance Co. (HSB) investigates numerous small refrigeration unit failures. The primary reason for the majority of these failures is poor or non-existent preventive maintenance for the unit.

A new customer called and wanted their commercial unit serviced. The customer was a retail store and the manager seemed to think that the unit was not performing up to standard. The unit would run most of the time, even in mild weather, and did not seem to cool the store as well as it should.

In this troubleshooting situation a technician has responded to a complaint of “not cooling” on a six-year-old R-410A split system that employs an upflow gas furnace indoor air handler and a condensing unit that sits on the ground, and there is less than 20 feet of connecting tubing.

This troubleshooting situation centers around an older 3-ton split comfort cooling system, and the customer is calling because their home is “just not comfortable.” The homeowner also tells the dispatcher that while the unit is operating and air is coming out of the registers, the temperature in the house is too warm.

Your troubleshooting problem involves a 3-ton split system, and the complaint is that in a high outdoor ambient situation, the unit is unable to obtain the necessary comfort level in the 1,200-square-foot building it is supposed to cool. And, this unit has a history.