Propex heaters are designed to be a safe and reliable source of heat for your application. If mounted in a non-stationary vehicle, the units are subject to vibration and exposure to all types of environments. Because of this, Propex designers err on the side of caution and create distinct operating …

The Propex line of heaters is designed with an onboard fuse to protect the heaters’ sensitive central circuitry. Consider this fuse your heater's front line of defense against an over-current condition for your heater. To protect this fuse, it is imperative that there is no 12-volt power to …

The Propex heaters were designed to be safe and reliable sources of heat for your vehicle. Being mounted in a non-stationary vehicle presents its own challenges as the units are subject to vibration and exposure to all types of environments. Because of this, Propex designers err on the side of caut …

Very rarely out technicians have seen a Propex running issue where your heater's fan may start acting possessed and cycling on and off in one second bursts.  We suspect this happens when the heater has been started with the 12V battery in a discharged state. The fan spins up to begin its pre-c …

This article is a reference for the wiring and electrical connectors of the Propex HS-series heaters.  If you are having electrical issues, please make sure all of your wires are correctly pinned and hooked up properly.   HS2000 / HS2800 Thermostat Wiring Harness connected to the circuit …

Before sending in your heater for repair you must first contact support@propexnorthamerica.com and receive approval. By sending your unit in for repair, you are agreeing to the following conditions. 1.) The customer is responsible for shipping charges both to and from Propex North America. 2.) Prop …