Service and Maintenance - Articles - Page 22

How to Determine the Cause of Mechanical Compressor Failure

Strategies for HVAC technicians servicing failed compressors

Ted Craig

December 16, 2021

Airflow is one of the leading causes of failure for compressors.

The 3-4-5 Rule for Walk-In Coolers And Freezers

The box must remain square or else the panels will not fit together

Joe Marchese

November 29, 2021

During the installation of a new walk-in cooler or freezer, it is imperative the box remain square and level during the assembly of its panels.

Four Reasons I Failed Selling Duct Upgrades

How my frustrations led to a life-changing phone call about sales

David Richardson

November 16, 2021

Sales is not an evil word, despite what many would have you believe. However, there is a right way and a wrong way to sell.

How Much Do You Know About HVAC Service?

Take this HVAC quiz to see what you know

Gordon White

October 29, 2021

Whether you’re the owner of an HVAC contracting company or a student at a tech school, take this quiz to find out how much you know about servicing equipment.

How to Diagnose Partially Restricted Filter Driers

A sight glass is helpful in determining the condition of the system

John Tomczyk

October 26, 2021

Service technicians should always remember that systematic troubleshooting is the only sure way to find the actual cause of any system problem.

How to Verify Heat Pump Heating Btus in Five Steps

Try these steps the next time you have a heat pump that isn't performing well

David Richardson

October 25, 2021

There is a way to check the heat pump system charge on the airside that is quick and easy.

Troubleshooting Water-Cooled Condensers

Analyzing the correct operating characteristics can help identify problems

Joe Marchese

October 13, 2021

Occasionally while servicing refrigeration equipment, technicians may come across a system utilizing a water-cooled condenser instead of an air-cooled condenser.

The Importance of Line Set Protection in HVAC Maintenance, and How to Do It

HVAC contractors should challenge themselves to solve old problems in new ways

Scott Merritt

October 10, 2021

I’m here to talk today about a problem we saw, how we solved it in a new way, and why more contractors should be considering the same.

Figure One: Diagram of an electric furnace.

Troubleshooting Puzzle: An Electric Furnace That’s Not Performing

Jim Johnson

October 9, 2021

The equipment in this month’s troubleshooting problem is an electric furnace that has been in service for at least ten years and has no service history.

HVAC Technicians Share Favorite Tools, Ways to Carry Them

Keeping bags organized makes the job easier

Ted Craig

October 5, 2021

The ACHR NEWS recently spoke with three technicians — representing residential service, commercial service, and installation — about what they carry in their bags.