The basic components and function of a thermostatic expansion valve (TXV) continues to play a role in HVAC service. “Long, long ago in a faraway place, TXVs had very little impact on service ...

Troubleshooting Let’s apply the system checklist to a refrigeration system that is not operating properly. Assume that this system has components that were originally sized properly and are still in ...

Before calling in an HVAC tech, try these troubleshooting tips. You may be able to fix the issue yourself and save some money along the way. When your HVAC system stops working, your first ...

Bluon introduces MasterMechanic, an innovative AI based on 50,000 tech support calls to help HVAC technicians diagnose problems in the field.