Troubleshooting and hvacr - Articles - Page 7

The Trouble with TXVs: Diagnosing the Problem

Technicians need to be patient when adjusting TXVs in refrigeration systems

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.

Seven Things to Check to Ensure Proper Compressor Function

HVACR experts share tips for preventing compressor failure before it happens

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.

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.

Duct Dynasty: Seven Combustion Testing Skills of Elite Service Technicians

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.

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.

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.

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.

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.

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.

Flame Furnace: Training Technicians with Simulation Boards

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.