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OEM Hayward HDXFUIBRD001 Display Board and Ribbon Cable is an essential interface component for HDF400 heaters, designed to deliver intuitive system feedback and streamlined maintenance. The display board shows live performance data and fault codes, allowing users to monitor heater status easily. Paired with a keyed ribbon cable, it ensures accurate, secure connectivity to the heater’s ignition control board. Built for durability in high-moisture, high-temperature environments, this OEM assembly helps pool owners and technicians manage system performance with greater ease and precision.
Note: If the heater display is blank after the electrical has been installed, refer to Troubleshooting Lookup Chart to determine the cause. Note, the ribbon cable between the display board and the ignition control board is keyed to ensure correct connection.
Highlights
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Designed for HC Series HDF Heaters: OEM interface board integrates seamlessly with HDF400 models for accurate system feedback and diagnostics
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User-Centric Display Design: Clear visual interface shows live heater data and alerts to simplify daily operation and maintenance
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Keyed Ribbon Cable for Safe Connection: Ensures proper orientation and stable communication between the display and ignition board
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Reliable Under Poolside Conditions: Constructed with robust components to withstand environmental exposure and maintain consistent functionality
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Makes Troubleshooting Easier: Helps users quickly identify and resolve system issues, improving overall maintenance response time
Compatibility
- Compatible with Hayward HC Series HDF400 Heaters
Instructions
- Turn the pump, main gas valve, and heater power off.
- Remove the single screw securing the top access panel to the cabinet top.
- Unplug the installed ribbon cable from the ignition control board inside the heater cabinet. Remove the connector from the ignition board by depressing the locking mechanism in the center of the connector before pulling it free.
- On the underside of the top access panel, remove four (4) screws securing the display board cover and remove cover.
- Disconnect the membrane switch ribbon cable from the side of the display board and remove the board from the top access panel.
- Reverse the above procedure to install the new display board.
Communication Error Code
If communication between the ignition control board and the display board is not established within 3 s of power-up or is lost for 30s during operation unit will shut down and error will be displayed. The error code will be cleared upon a valid data exchange between boards.
Additional Info
Identifying Display and Interface Issues
display won’t respond after heater startup
how to test hdf400 screen board for failure
ribbon cable loose or damaged causing display error
heater runs but panel shows no data
error lights flashing but no text on screen
Kit Contents and Local Purchase Options
check local price for hayward hdxfuibrd001
does this include both display and cable
durable interface board for hc-series heater
buy new ribbon cable for heater control panel
available nearby display board kit for hdf heater
Fitment and Installation Support
will this display kit fit older hdf400 versions
ribbon cable keyed for safe installation
replacement interface for 2023 hayward hc-series
confirm model match for local heater screen repair
display screen kit compatible with hdf400 gas heater
Diagram

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