If defrost isn’t working, something in the chain is broken. This step-by-step approach shows you exactly where to look and what to test.

In order to service and troubleshoot an air-source heat pump system, a service technician must understand the unit's sequence of operation. This is the order of events the system undergoes to cycle ...

Grand Prairie, TX October 1, 2012 – Visionaire Inc., an OEM provider of air conditioning & heating products, announces a new line of specialty cab heaters for heavy duty off-highway equipment. These ...