The Balboa 53858-04 circuit board is used to replace the PCBs (printed circuit board) in the EL8000 control systems used by various hot tub manufacturers, including QCA Spas and Catalina Spas.
Important:
Finding the right PCB replacement requires knowing the chip number because some have the same appearance but work differently. This is written on a white label that is attached to the circuit board.
Fitment Guidelines:
Circuit Board for the Balboa 55064 Spa Pack
Compatible with the Balboa 53605 M7 Sensors and Balboa's ML900 control panels
Replacement circuit board for the following:
• 53231-02 Master Spas
• 53232-01R1B
• 52888-01 Catalina Spas
• 52888-01
• 53858-03
• 951210
• 9710-105
• EL8000 Mach 2
• EL8000R1A
Additional Information:
Cord Type - Molex Cable
Chip Number - EL8000R1A