HVAC, Refrigeration & Compressor Technical Resources
I still remember getting a service call from a customer who complained that their 1.5-ton split air conditioner wasn’t cooling properly. They were convinced the refrigerant had leaked because the indoor unit was blowing warm air. After checking the pressure, cleaning the condenser, and testing the electrical components, the real issue turned out to be … Read more
A few summers ago, I got a service call from a customer whose 2-ton split air conditioner had suddenly stopped cooling. The indoor unit was running perfectly, but the outdoor unit made a loud humming noise before shutting off. Like many homeowners, they immediately thought the refrigerant had leaked. After checking the system with my … Read more
I remember the first time I worked on a split air conditioner equipped with an LG rotary compressor. The customer’s complaint was simple: the AC wasn’t cooling as effectively as before, especially during the hottest part of the afternoon. After checking the refrigerant charge, condenser coil, and electrical components, I found that the compressor was … Read more
There was a time when a customer called me because their older split air conditioner had stopped cooling during one of the hottest weeks of summer. The outdoor unit was running, but the air inside the room felt almost warm. After checking the electrical components, measuring refrigerant pressure, and listening carefully to the compressor, it … Read more
A few summers ago, I was called to troubleshoot a rooftop air conditioning unit at a busy supermarket. The complaint sounded simple enough: “The store isn’t staying cool during the afternoon.” By the time I arrived, the system had already been inspected twice. Refrigerant levels looked normal, the condenser coil was clean, and all the … Read more
There was a time when I got a call from a small office building where the air conditioning system kept shutting down every afternoon. The technicians had already checked the refrigerant level, cleaned the condenser, and even replaced a contactor, but the problem kept coming back. After tracing the issue step by step, we discovered … Read more
A few summers ago, I received a service call from a customer whose split air conditioner had suddenly stopped cooling. The indoor unit was running, the fan was working, but the room temperature barely changed. Bristol Compressor H2EB323ABKC 1PH Review & Specifications. Like many technicians, I initially suspected low refrigerant or a faulty capacitor. After … Read more
A few months ago, I was troubleshooting a small beverage cooler that kept struggling to maintain temperature during the hottest part of the day. The evaporator was clean, the condenser fan was working perfectly, and the refrigerant charge was correct. After checking everything, the real culprit turned out to be a worn-out compressor. The replacement … Read more
Several years ago, a small grocery store owner asked me to look at a drinks cooler that had become noisy, slow to cool, and expensive to run. The original compressor had already been “repaired” twice, and every fix seemed to buy only a few weeks. We eventually replaced it with a Danfoss FR‑series unit—specifically an … Read more
I still remember a service call from a small restaurant owner who was frustrated because his beverage cooler kept losing temperature during busy hours. The cooler would work fine in the morning, but by lunchtime the drinks weren’t cold enough. Like many people, he assumed the thermostat was the problem. After checking the refrigerant charge, … Read more