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Cal Spa ELE09100209 Circuit Board C2105R1(x), Balboa

Cal Spa ELE09100209 Circuit Board C2105R1(x), Balboa
  • Manufactured by: Cal Spa
  • Part Number: ELE09100209
  • Chip Number: C2105R1(x)


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Item Number: 22-3688

  • Description
  • Details
  • Reviews

The Cal Spa ELE09100209 C2105R1(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 Cal Spa ELE09100209 C2105R1(x) circuit boards are manufactured by Balboa Water Group, Inc..

The ELE09100209 part number may also be shown as CALELE09100209, 09100209.
Cross Reference Verification
Chip Numbers:
  • 2105R1A
  • 2105R1B
  • 2105R1C
  • C2105R1A
  • C2105R1B
  • C2105R1C
  • CS2105R1A
  • CS2105R1B
  • CS2105R1C
Additional Cross Ref., Compatibility & Installation
ATTENTION: This replacement circuit board can only be used to replace circuit boards with chip number 2105R1(x).
Tip: notice the "R1".
Tip: if your circuit board's chip number has "R2", you will need another replacement.
Please contact us for availability on "R2" replacements.
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: Cal Spa
  • Part Number: ELE09100209
  • Part Number: C2105R1(x)
  • Item Number: 22-3688


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