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Home » Topics » HVAC Contracting » Service and Maintenance

Service and Maintenance
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“Service and Maintenance” articles focus on troubleshooting service call issues and revisiting HVAC basics.

ARTICLES

Refrigertation Checklist

Checklists Can Help Determine What Is Causing the Problem in a Refrigeration System

Confusing High-Side Temperatures
Headshot tomczyk john
John Tomczyk
March 22, 2023
No Comments
There are several reasons why the compressor discharge temperature of a refrigeration system can be high when the condensing temperature is not, and a checklist can help a technician figure out the root problem.
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Carrier Microchannel Technology

Proper Charge Is Critical for Microchannel Coils

Incorrect amount of refrigerant could reduce performance, efficiency, and reliability
Tn joanna 2017
Joanna R. Turpin
March 20, 2023
No Comments
Microchannel coils are lightweight, offer better heat transfer, and use less refrigerant than traditional fin-and-tube coils; however, care must be taken when charging, as even a few ounces could reduce a systems’ performance, efficiency, and reliability.
Read More
TriplePlay_Logo (1).jpg

Triple Play Home Services Acquires Comfy Bear Plumbing, Heating, and Air

March 10, 2023
No Comments

Triple Play Home Services, a home service provider based out of Edmond, Oklahoma, acquired Comfy Bear Plumbing, Heating, and Air, an established HVAC and plumbing company based in Oklahoma. 



Read More
Grants_Signature_1640x1124.jpg

Third-Annual Jobber Grants to Award $150,000 to 25 Home Service Businesses

March 9, 2023
No Comments

The Jobber grant program has helped launch, grow, and strengthen 55 home service businesses to date.


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Brazing Aluminum

The NEWS Learns How To Braze Aluminum

Taylor maria headshot 200x200
Maria Taylor
Hannah belloli
Hannah Belloli
March 6, 2023
No Comments
At this year’s AHR Expo in Atlanta, Georgia, two editors from The ACHR NEWS visited Harris Products Group to learn how to braze aluminum.
Read More
Aluminum Coils

Why Aluminum Coils Are Being Repaired, Not Replaced

Supply chain issues and shorter warranties are leading HVACR contractors to make more repairs
Christen Foltz
February 28, 2023
No Comments
Copper was the mainstay in HVAC and refrigeration coils until 2011, when copper prices went through the roof. As manufacturers began testing alternatives, the industry settled on aluminum as a workable, less costly option.
Read More
Daikin Ductless Unit

Diagnosing Ductless HVAC Systems

What to look for when a ductless system isn’t working right, or at all
Matt jachman
Matt Jachman
February 21, 2023
No Comments
The use of ductless heat pump HVAC systems has broadened considerably since they were introduced to the U.S. market decades ago, but their technology isn’t familiar to all technicians or in all parts of the country.
Read More
Ice Breaker Joe Marchese

Troubleshooting Defrost Timers

A faulty defrost timer in a refrigeration system can lead to problems
Joe marchese
Joe Marchese
February 21, 2023
No Comments
Technicians should learn how to troubleshoot defrost timers, as they can be the culprit if a freezer that uses an electric heater as its supplemental heat source has a frozen evaporator coil.
Read More
Defrost Sensor

Diagnosing a Heat Pump Defrost Sensor

Matthew Akins
February 19, 2023
No Comments
A split system heat pump's defrost sensor is used to detect ice buildup on the heat pump's outdoor coil. The exact way in which a defrost sensor works can vary.
Read More
Turning Vanes Diagram

Defining Duct Renovation: Part 1

David richardson
David Richardson
February 18, 2023
No Comments
Duct renovation is one of the largest missing pieces in our industry. To create a foundation, let’s look at two duct renovation approaches.
Read More
More Articles Tagged with 'Service and Maintenance'
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November 30, 2022

Moving Forward with R-290 Natural Refrigerant

On Demand In this webinar, we go through the recent updates on R-290 natural refrigerant, and the impact it will have on the HVACR industry.

April 4, 2023

From Transactions to Solutions: How to Build Stronger Customer Relationships

Join us as we examine the fundamentals of solution selling, whether this model makes sense for your business, and strategies for helping your staff adopt a solution selling approach.

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BNI Mechanical/Electrical Square Foot Costbook, 2023 Edition

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