A variable frequency drive (VFD) fails to vary the discharge-air fan speed. A motor overheats and fails prematurely. Programmable controls that generally operate without issue suddenly experience ...

There are several HVAC issues that you can fix yourself. If your system isn’t working as expected, your first order of business should be checking your air filter and replacing it if necessary. If you ...

Troubleshooting modern refrigeration and/or air conditioning systems requires a thorough knowledge of the refrigeration system and its functions. However, to be a good troubleshooter, a technician ...

The summer heat is just around the corner, and that means HVAC troubles might not be far behind. Here are some quick tips on what you should do when your AC unit stops working. There are a number of ...

Declining performance of a large compressor-driven steam turbine's surface condenser at Shell Chemical LP's petrochemical complex in Norco, La., was constraining an associated process unit to a ...