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Home » troubleshooting and HVACR

Articles Tagged with ''troubleshooting and HVACR''

Heatcraft-3.jpg

The Trouble with TXVs: Diagnosing the Problem

Technicians need to be patient when adjusting TXVs in refrigeration systems
Heatcraft-JustinBailey.jpg
Justin Bailey
December 8, 2022

At one time or another, every technician has run into a refrigeration system that is not functioning properly. The question then becomes how to diagnose and determine if the problem is the TXV.


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Compressor

Seven Things to Check to Ensure Proper Compressor Function

HVACR experts share tips for preventing compressor failure before it happens
Hannah Belloli
Hannah Belloli-Oster
December 5, 2022
There are a few different things HVAC contractors can check to ensure proper compressor function. This article highlights seven of them.
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Refrigeration Systems

Repairing a System With Multiple Issues

Techs should have patience while troubleshooting so they don’t overlook other problems
Joe Marchese
November 23, 2022
Repairing refrigeration systems can be challenging, especially when a system has multiple problems. Technicians should have patience during the troubleshooting process, as it is easy to rush to an early conclusion.
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Seven Combustion Testing Skills Diagram

Duct Dynasty: Seven Combustion Testing Skills of Elite Service Technicians

David Richardson
David Richardson
November 19, 2022
Combustion issues can be a service technician’s most challenging and intimidating problem to diagnose. Let’s look at seven key skills they frequently use to solve combustion problems.
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Radiators

Troubleshooting Radiators: 6 Steps

What to do if your radiator is hot at the top and cold at the bottom
November 12, 2022
Six steps on how to troubleshoot a radiator problem and why it might be happening.
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Refrigeration Troubleshooting

Creating the Ultimate Refrigeration Troubleshooting Checklist

Being organized can help technicians quickly solve tough problems in the field
John Tomczyk
November 2, 2022
In addition to using proper tools and test instruments, technicians should use a checklist to help them troubleshoot refrigeration and air conditioning systems in the field.
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Ice Breaker Joe Marchese

Superheat, Subcooling, and Saturation – What Do They Mean?

These measurements can help technicians troubleshoot refrigeration systems
Joe Marchese
October 29, 2022
Understanding what the terms superheat, subcooling, and saturation mean can be helpful when troubleshooting an air conditioning or refrigeration system.
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closed-loop-cooling.jpg

Protecting VFDs from Overheating

An easy way to calculate cooling requirements
Jon LaPorta
October 14, 2022

At Pfannenberg, they have developed simple rule-of-thumb guides for selecting and sizing variable frequency drives cooling solutions.
 


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Refrigeration Evaporator.

Proper Superheat Can Protect Compressor From Damage

Technicians should make sure that liquid refrigerant is not entering the compressor
John Tomczyk
September 28, 2022
One of the worst enemies of a compressor is liquid refrigerant, so technicians should make sure the refrigeration system has proper superheat in order to protect the compressor from damage that can occur from flooding or slugging.
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Flame Furnace Simulation Board.

Flame Furnace: Training Technicians with Simulation Boards

Layan Dahhan
Layan Dahhan
September 8, 2022
The ACHR NEWS’ web editor, Layan Dahhan, visited Flame Furnace in Warren, Michigan, to find out how the company trains its technicians to troubleshoot furnace and a/c units.
Read More
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