A common problem found when troubleshooting a freezer that uses an electric heater as its supplemental heat source is a frozen evaporator coil. Although there are several possible causes for this ...

Ice buildup in reefer units quietly drives up fuel use, defrost time and wear, creating a hidden cost for refrigerated fleets ...

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 ...