Articles Tagged with ''troubleshooting and HVACR''

In this troubleshooting situation, a technician has responded to a complaint of “not cooling” on a six-year-old R-410A split system.

Technicians often confuse symptoms of a refrigeration system that has a frosted evaporator coil with a system that is overcharged with refrigerant.

Let’s review some basic principles and how you can use them to diagnose and solve sound-related HVAC issues.

We often humidify and dehumidify as part of our work, but let’s take a different look at what happens when we do that.

The service history of this unit includes several electrical repairs, and in one instance, a leak in the sealed system was found and repaired.

In a refrigeration system, service technicians often confuse a liquid line restriction with an undercharge of refrigerant.

Refrigeration systems operating at a higher-than-normal discharge pressure can be the result of several different issues.

Many new systems have no chance of long-term success due to improper installation, said Martin Hoover of Empire Heating and Air Conditioning.

Compressor failures are often a result of installation mistakes and/or poor maintenance, which means that they can usually be prevented.

Recommissioning a system can help determine if a compressor replacement makes sense, or if the whole system should be replaced.