In this troubleshooting situation you have responded to a complaint that a 4-ton package unit air conditioner is not cooling. When you arrive, you find that the indoor air handler is running, the ...

Like any appliance, air conditioners need a little TLC to deliver optimal performance. ACs that haven’t been kept in top-notch condition tend to struggle most. We asked air conditioner pros and ...

Nothing fills a person with dread quite like a misbehaving refrigerator, whether the appliance is humming but not cooling or has started mysteriously leaking water. Buying a new fridge is expensive, ...

The compressor is the heart of any air conditioning or refrigeration system, so when it starts showing signs of not working correctly, technicians must act quickly in order to find out what is wrong.

The Federal Aviation Administration has ordered airlines to replace components in the compressors and turbines of Pratt & Whitney PW1100Gs turbofans, which power Airbus A320neo-family aircraft. The ...