Articles by Jim Johnson

Troubleshooting Challenge: A Comfort Cooling System That's Not Gettin' Down

May 4, 2009
This time around we have a customer who has called to say that it’s warmer than it should be in their home. When you arrive you find a nine-year-old package unit, and you determine in a short time that, electrically, everything is as it should be, which means that what you have is a unit that is running, but is not cooling enough.
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Troubleshooting Challenge: A Gas Furnace That's Heating Intermittently

March 9, 2009
After your evaluation of the equipment, you’re leaning toward the diagnosis that the motor is failing and you double-check two things. Your troubleshooting question: Which component was replaced, eliminating the intermittent equipment operation failures?
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Troubleshooting Challenge: An Uncomfortable Customer

January 5, 2009
This month’s troubleshooting situation centers around a very recently installed heating and cooling system, and a customer who has called to complain that certain rooms in the house “just don’t seem to be getting enough air.”
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Troubleshooting Challenge: A Furnace With a Flashing Fault Code

November 3, 2008
In this month’s troubleshooting situation, we find ourselves dealing with a condensing furnace, and the customer has called to say that “there’s no heat at all.” It’s a relatively small unit, rated at only 40,000 Btu, but it is equipped with an LED readout system that flashes a fault code in the event of a breakdown.
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Troubleshooting Challenge: A Heat Pump That's Not Cooling at All

September 8, 2008
It’s the middle of July, and a customer calls to say that the unit that heats and cools their small office “isn’t cooling at all.” When you arrive, you find a 230-V, eight-year-old, rooftop package unit heat pump with three-phase compressor. After an evaluation of the system, you'll be asked a three-part troubleshooting question.
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Service Management Excellence

September 8, 2008
Many service managers move into the position without a great deal of opportunity for training and preparation in the areas of communication skills, customer service, dealing with different personalities, or managing people. This excerpt from a new E-book discusses how to be an effective manager.
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Troubleshooting With Jim Johnson: A Gas Furnace Follow-Up Service Call

February 4, 2008
In this column, Jim Johnson of Technical Training Associates presents a specific HVACR equipment problem and invites readers to submit their diagnosis. From those who submit the correct answer by the deadline, there will be a prize drawing. Here is a furnace problem.
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Troubleshooting With Jim Johnson: An Electric Heating System That's Not Heating Enough

December 3, 2007
In this column, Jim Johnson, director of training for Technical Training Associates, presents a specific HVACR equipment problem and invites readers to submit their diagnosis. From those who submit the correct answer by the stated deadline, there will be a prize drawing.
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PEAK Performance for the Technical Professional - Part Six

September 10, 2007
We’ve covered a lot of ground so far in this series, and in this, our final segment, we’re going to focus on the actions that a technical professional can take when providing outstanding customer service.
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PEAK Performance for the Technical Professional - Part Five

August 6, 2007
This segment of the article series discusses communication skills for technical professionals. Some technicians try to avoid the customer service side of the job, but that’s something that is impossible to do.
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