PHP Resource Page
Technical Bulletins
TB141001 – PH23A Heaters Controller – Voltage Drop
TB140201 – PH23A Heaters manufactured prior to 2013 – Control Unit Updates
TB140202 – PH23A, PH51W Heaters – Heater Serial Numbers
TB140701 – PH23A, PH51W Heaters – Blink Codes
TB210201 – PH20A and PH40A Heaters – Main Wiring Connections
TB210202 – All Fuel Fired Heaters – Solving Combustion Issues
TB210203 – All Engine Heaters – Engine Heater Plumbing Guidelines
TB210204 – All Engine Heaters – Coolant Leaks
TB210701 – PH51W Heater – Operating Switch By-Pass
TB210801 – 2kW & 4kW Air Heaters – Air Heater Maintenance
TB210802 – 5kW Engine Heaters – Engine Heater Maintenance
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