Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.
Primary system pressure is too low. The manual lists no action for this code.
The system has reached its maximum number of resets allowed. The manual's first action is: “Refer to fault history codes (INFO menu d9)”
The DHW sensor fault code indicates a problem with the sensor or its wiring. The manual lists no action for this code.
Heating flow sensor fault code 05 indicates a problem with the flow sensor wire connections or the sensor itself. The manual lists no action for this code.
Gas valve electrical connection fault code 04 indicates a problem with the gas valve's lead connection or faulty components. The manual lists no action for this code.
The flue thermostat temperature is too high. The manual lists no action for this code.
02 on the Alpha InTec 30C, 34C is listed in the manual as: Overheat boiler lock out. The manual lists no action for this code.
The ignition system failed to ignite the gas. The manual's first action is: “Check pressure tubes”
All 24 error codes of the Alpha InTec 30C, 34C Alpha InTec gas boiler with their meaning, causes and what to do, taken from the manufacturer's manual with page references.
The furnace's control system is not receiving power. The manual lists no action for this code.
1 error code of the International Comfort Products 440 08 2002 02 furnace control system with its meaning, causes and what to do, taken from the manufacturer's manual with page references.
The CONFIG port is transmitting data and LED indicator is not flashing. The manual's first action is: “Check ASCII terminal cabling. Make sure the module's JW4 jumper is in Configuration mode.”
A system problem was detected during background diagnostics. The manual's first action is: “Contact your Allen-Bradley representative.”
The DH485 port is not active for communication. The manual's first action is: “Check DH-485 cabling. Make sure the module's JW4 jumper is not in Configuration mode.”
The module requires configuration. The manual's first action is: “The module requires configuration.”