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Balboa 850R1(x) Circuit Board Alt Replacement, Leisure System Aquatics

Balboa 850R1(x) Circuit Board Alt Replacement, Leisure System Aquatics
Balboa 850R1(x) Circuit Board Alt Replacement, Leisure System Aquatics
Balboa 850R1(x) Circuit Board Alt Replacement, Leisure System Aquatics
Balboa 850R1(x) Circuit Board Alt Replacement, Leisure System Aquatics

  • Manufactured by: Balboa Water Group, Inc.
  • Chip Number: 850R1(x)

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Item Number: 22-2109

  • Description
  • Details
  • Reviews

The Balboa 850R1(x) circuit board is discontinued but we have options.

Option 1: Get your circuit board repaired.  Please contact us before sending items in for repair.

Option 2: Contact us to inquire about a new retro-fit system control box replacement.

The Balboa 850R1(x) circuit boards are also found in hot tubs made by Leisure System Aquatics and possibly others.
Cross Reference Verification
Chip Numbers:
  • 850R1A
  • 850R1B
  • 850R1C
  • 850R1D
  • 850R1E
  • 850R1F
Additional Cross Ref., Compatibility & Installation
This package deal includes an alternate replacement circuit board and a compatible topside control panel.
The old (original) topside control panel is outdated and not compatible.

ATTENTION: Some of these hot tub systems have an optional auxiliary topside control panel that is also outdated and not compatible with this alternate replacement circuit board.
If you have an optional auxiliary topside control panel, please contact us to inquire if a compatible one is available.
Tip: When replacing a hot tub circuit board, testing the heater and replacing it (if bad), is recommended before installing or applying voltage on a new circuit board.
Note: A continuity test is not a sufficient heater test. Contact us by phone for more details on testing a heater.

Tip: Burned circuit boards or burned heater relays are often due to a loose electrical connection or a bad heater or both.
If all connections are tight and if the heater is good then the heater relays are probably old and worn out.
If a burned relay was powering a pump and all electrical connections are tight then the relay is probably old and worn out or the pump might be bad or going bad or all three.
Replacing the heater and/or pump with a new one is recommended if any of those scenarios apply.

Unsure of what something on this page means?

Please contact us so we can better assist you.


  • Manufactured by: Balboa Water Group, Inc.
  • Part Number: 850R1(x)
  • Item Number: 22-2109


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