Articles by John Tomczyk

Any compressor that gets too hot or is overheated is subject to premature wear between its internal moving parts.

This article will compare subcooling amounts in a refrigeration system for three scenarios: an overcharge of refrigerant, a dirty condenser, and air in the system.

Systematic troubleshooting using the symptom/cause method is a quick and efficient way a service technician can solve even the toughest of service calls.

Summer is almost here, and as part of the seasonal commissioning process, technicians should inspect the evaporator coil and clean it if necessary.

Over time, condenser coils often become plugged or fouled with dirt, grease, weeds, cottonwood fuzz, or simply layers of dust.

Service technicians often confuse motor horsepower (hp) with tons of refrigeration.

In most refrigeration and air conditioning systems, refrigerant will want to travel, or migrate, to a place where the pressure is the lowest.

This article will explore the remote bulb and its proper placement on a system’s suction line.

Little by little, a compressor’s lubricating oil will eventually escape the compressor’s crankcase and enter the system’s tubing.

Condensing units that are exposed to low ambient conditions must have some sort of low ambient control installed on them.