Matt, what is the role of a reversing valve in a heat pump, and how can you diagnose a malfunctioning valve?
In this edition of “HVAC Skill Builder,” Matt discusses diagnosing a malfunctioning valve and the role of a reversing valve in a heat pump.
Are you a homeowner or building manager?
Find a Contractor »
Matt Akins is ACCA's Manager of HVACR Education. He can be reached at matt.akins@acca.org or 703-824-8867.
In this edition of “HVAC Skill Builder,” Matt discusses diagnosing a malfunctioning valve and the role of a reversing valve in a heat pump.
Login to access this member exclusive. Not a member? Join now!
When customers expect their system to handle heat loads it was never sized for, complaints start rolling in. Explaining why their system can’t exceed its designed capacity helps customers understand realistic performance limits and manage their expectations. Here’s how to inform customers so they know their system’s capabilities and limitations.
In this edition of “HVAC Skill Builder,” Matt discusses the importance of proper duct sizing and how it aids airflow.
In this edition of “HVAC Skill Builder,” Matt discusses HVAC system malfunctions caused by a voltage drop across the electrical components.
In this edition of “HVAC Skill Builder,” Matt discusses how the placement of a thermostat can effect system performance and customer comfort.
In this edition of “HVAC Skill Builder,” Matt discusses the negative effects of a dirty or clogged evaporator coil on the overall operation of an HVAC system.
Login to access this member exclusive. Not a member? Join now!
When ducts are sweating and customers complain about feeling sticky despite running the AC, the dew point gives you the answer.
In this edition of “HVAC Skill Builder,” Matt discusses HVAC system efficiency and cooling capacity with a leaking refrigerant line.
Login to access this member exclusive. Not a member? Join now!
There’s an old saying that “the bitter taste of poor quality lingers long after the sweet taste of low price is forgotten.” This rings especially true in the HVACR industry, where technicians often compete against low-cost providers who cut corners to win business.
When determining the correct size for HVACR equipment in a home, it’s crucial to look beyond just the model number. […]
As spring unfurls its verdant leaves and summer beckons with its promise of sun-drenched days, homeowners are gearing up for […]
Login to access this member exclusive. Not a member? Join now!
This article is designed to demystify the essential operation of defrost control boards, which, despite the variety available in the market, share a common ground in their fundamental workings. ACCA members can read more here.
Login to access this member exclusive. Not a member? Join now!
This article will dive into the exciting realm of contactors and relays, the behind-the-scenes heroes in your HVAC systems. ACCA members can learn more here.
Login to access this member exclusive. Not a member? Join now!
This article will go over the steps necessary to make estimated calculations of the system’s pressure, superheat, and subcooling without refrigerant gauges. Read more in this members-only blog.
As an HVAC technician, you can increase your earnings by suggesting hard start kits to your clients. These kits are cost-effective and straightforward to install, and they significantly enhance the starting efficiency and dependability of air conditioning and heat pump units. This article will explore the advantages of hard start kits and how they function.
Login to access this member exclusive. Not a member? Join now!
Let’s delve into common mistakes, embrace actionable solutions, reduce callbacks, minimize liability, increase revenue, and strengthen your brand. Together, we embark on a transformative journey toward HVAC excellence. Read more in this members-only blog.
Login to access this member exclusive. Not a member? Join now!
A Maintenance Ambush is when a customer calls for maintenance, knowing their system has problems. Learn how to handle this situation in this members-only blog.
Login to access this member exclusive. Not a member? Join now!
A hot surface ignitor is a key factor in furnace systems as it helps ignite the burner flame. Read this blog to learn troubleshooting and maintenance tips.
Login to access this member exclusive. Not a member? Join now!
When ice starts building up on a heat pump’s outdoor coil, this reduces its ability to transfer heat. This blog will help you in defrosting your heat pump.
Login to access this member exclusive. Not a member? Join now!
Furnace gas valves have a few reasons to fail, including improper gas pressure, faulty wiring, and more. Learn how to detect a failure at this blog
© 2026 Air Conditioning Contractors of America Association, Inc.
Website by Amplify Industrial Marketing + Guidance