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Home » troubleshooting and HVACR

Articles Tagged with ''troubleshooting and HVACR''

Refrigeration case.jpg
FROSTlines

Using Data Recording as a Troubleshooting Aid

Recording true and accurate information is the key to making this a valuable tool
Joe Marchese
November 13, 2024

Data recording can help less experienced technicians troubleshoot refrigeration systems. Quickly and accurately determining the cause of a system problem is beneficial to both the equipment owner and the servicing contractor, and  experience can be a major factor in a technician's ability to troubleshoot systems with greater precision. 


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Meter Probe
FROSTlines

Understanding Voltage, Current, and Resistance

Troubleshooting refrigeration systems requires knowledge of electrical fundamentals
Joe Marchese
September 12, 2024
Technicians need to understand the basic electrical fundamentals and how they relate to each other in order to better troubleshoot electrical failures.
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Furnace red-tagging

Furnace Red Tag Second Opinions

David Richardson
David Richardson
September 11, 2024

There are plenty of reasons to shut down a potentially dangerous furnace, just make sure the facts back up that decision. 


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Frozen Evaporator Coil
FROSTlines

Temporary Fixes Can Jumpstart a Refrigeration System

Workaround solutions can sometimes be used if repair components are not readily available
Joe Marchese
August 22, 2024
Timely refrigeration repairs are crucial to avoid product loss; temporary fixes can sometimes keep systems running until parts arrive.
Read More
Mini-Split Unit

10 Things to Know Before Your First Mini-Split Call

Lianna Schwalenberg
Lianna Schwalenberg
August 21, 2024
The first time a technician has to tackle a ductless mini-split can be nerve-racking, but by following these 10 tips, the job can be done without all the anxiety.
Read More
PSC Fan Motor
FROSTlines

Troubleshooting PSC Fan Motors

Common problems are usually electrical or mechanical failures
Joe Marchese
July 15, 2024
Troubleshooting PSC fan motors is a common task for service technicians, and failures tend to be either electrical or mechanical.
Read More
Fan Center

How a Fan Center Works

Understanding the basics key to troubleshooting older furnaces
Lianna Schwalenberg
Lianna Schwalenberg
July 13, 2024
For technicians who run across older furnaces where air conditioners were later added, it pays to know how a fan center operates.
Read More
Ceiling Refrigeration System
FROSTlines

When Troubleshooting a Refrigeration System, Don’t Make Assumptions

Determine how the equipment should be operating before making any diagnosis
Joe Marchese
June 27, 2024
Troubleshooting refrigeration systems can be complex and frustrating, so put aside any assumptions and inspect the system thoroughly before making any diagnosis.
Read More
Water Source Heat Pump

How A Water-Source Heat Pump Works

Basics of water-source heat pumps key to understanding geothermal technology
Lianna Schwalenberg
Lianna Schwalenberg
May 22, 2024
To help the industry better promote geothermal heat pump technology, it first needs to have an understanding of exactly what is going on during its heating and cooling process.
Read More
Electronic Expansion Valve
FROSTlines

Troubleshooting Electronic Expansion Valves

It can be complicated to figure out why an EEV fails
Joe Marchese
May 19, 2024
The EEV is often used in modern refrigeration systems, but troubleshooting its common failures may be complicated.
Read More
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