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.

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.

Six steps on how to troubleshoot a radiator problem and why it might be happening.

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.

Understanding what the terms superheat, subcooling, and saturation mean can be helpful when troubleshooting an air conditioning or refrigeration system.

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.

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.

Technicians need to make sure that the TXV is not underfeeding refrigerant to the refrigeration or air conditioning system due to a restriction, which can be caused by a number of factors.

Internet of Things diagnostics technology can ensure the installation was done correctly, as well as notify technicians of potential service problems, which can keep HVAC equipment operating smoothly and efficiently.