Hayward Display Board and Cable Ext, HDXFDSPB0001

The Hayward HDXFDSPB0001 is the display board and cable extension for Universal H-Series Low NOx pool heaters. It is the genuine Hayward part, supplied as the board with its cable so both pieces arrive together.

What it does

The display board drives the readout on the heater control panel. It is where set temperature, mode and fault information appear. When the board fails, the heater may still fire but you lose the screen that tells you what it is doing, which makes setting the heater or reading a fault code impossible.

Which heaters it serves

This part belongs to the Universal H-Series Low NOx FD family: H150FD, H200FD, H250FD, H300FD, H350FD and H400FD. Check the model plate on your heater against that list before ordering, and confirm the control is getting power so you are not replacing a good board.