Master Spas

X800660 Master Spas® Circuit Board, MAS25R1B

Regular price $188.99
Regular price Sale price $188.99
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X800660 Master Spas® Circuit Board, MAS25R1B

Master Spas® Circuit Board, Chip MAS25R1B.


  • Chip Number MAS25R1A and MAS25R1B (X800660)

Product specifications:

  • Face Diameter: 7.0" (17.78 cm)
  • Length: 3.5" (8.89 cm)

Compatible with:

  • Down East Spas (1999-2002) Portsmouth 2-Pump, Portsmouth 1-Pump, Exeter 1-Pump, Exeter 2-Pump, Bar Harbor 240V, Newport, D-5000 2-Pump, D-5000 1-Pump, D-4000 2-Pump, D-4000 1-Pump, D-3000, Providence D, Providence S
  • Legend Series Master Spas (2000-2001) 650 SS, 570 SS


X800660 Schematic 

Alternate: Board number: 52000.


  • Be sure to set the jumpers (marked "water level sensor") running along the edge of the board in the same configuration as the original board.  The board was manufactured to operate two different style topsides, it is this jumper that "selects" the proper topside control.

  • Remember that it's very important that you don't order a circuit board based on looks (several boards look alike but have different software or chips). Some circuit boards come with a large variety of software. Be sure to order the correct one for your needs.

  • As with all electrical items once a circuit board has been installed, we cannot take it back other than for manufacturer's warranty.

SKU: X800660
MPN: X800660
Model: MAS25R1B
Manufacturer: Balboa® / Master Spas®
Warranty with manufacturer
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