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Jim Johnson

Jim Johnson is the director of training for Technical Training Associates, a Tucson, Ariz.-based firm that provides HVACR technician training DVDs/videos, E-books, and workshops. For more information, call 520-625-6847 or visit www.techtrainassoc.com.

Articles

ARTICLES

Troubleshooting Puzzle: A Walk-in Freezer That’s not Performing

Jim Johnson

December 9, 2019

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In this month’s troubleshooting situation, you are responding to a restaurant manager’s call for service, and the equipment is a walk-in freezer.

Hosting Successful In-House HVAC Training

Tips for keeping technicians on top of their game

Jim Johnson

November 25, 2019

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It’s easy for people to get dangerously off track when they’re sure they are working with correct information.

Troubleshooting Puzzle: An Uncomfortable Bedroom

Jim Johnson

November 11, 2019

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Several attempts have been made to solve the problem of one bedroom that is always too cool during the heating season.

Troubleshooting puzzle: A Heat Pump That’s Not Operating

Jim Johnson

October 14, 2019

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In this month’s troubleshooting situation, the equipment is a four-ton heat pump, and the customer’s complaint is that the unit is blowing cool air.

Writing a Company Mission Statement

A mission statement can improve employee satisfaction and customer service

Jim Johnson

September 16, 2019

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The idea behind a mission statement is that the generating revenue isn’t the company mission, but a by-product of accomplishing it.

Troubleshooting Puzzle: A Follow-Up on a Refrigeration System Repair

Jim Johnson

September 2, 2019

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In this month’s troubleshooting situation, you are responding to a customer’s complaint that their walk-in cooler “isn’t cooling enough.”

Troubleshooting Scenario: A Compressor Diagnosis Follow-Up

Jim Johnson

August 5, 2019

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In this troubleshooting situation your customer is requesting a second opinion on a proposed repair to their air-to-air heat pump.

A Compressor Starting Problem

Jim Johnson

July 8, 2019

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In this troubleshooting situation you have responded to a complaint that a 4-ton package unit air conditioner is not cooling.

A Split System That’s Not Cooling

A/C unit is blowing warm air

Jim Johnson

June 24, 2019

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The customer’s description of the problem: “My air conditioner is blowing warm air.” What's causing this?

A Package Unit Performance Complaint

Dealing with a malfunctioning gas pack

Jim Johnson

May 13, 2019

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In this troubleshooting situation, the equipment is a gas pack that has been in service for 18 months. What is the underlying cause for the poor performance of this unit?

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ACHRNEWS

2019 December 16

Week 1: December 16
In this issue of The ACHR NEWS, we discuss indoor agriculture. Advances in high-end technology, coupled with the legalization of medical and/or recreational marijuana in more than half the country, have created an HVAC niche market that’s ripe for the picking.

Week 2: December 23
We also discuss tools and transportation, exploring how contractors get their equipment to the job site safely and on time.

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