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Balboa 50859 Circuit Board C4000R1(x), Cal Spa ELE09100010

Balboa 50859 Circuit Board C4000R1(x), Cal Spa ELE09100010
  • Manufactured by: Balboa Water Group, Inc.
  • Part Number: 50859
  • Chip Number: C4000R1(x)

$431.67



Item Number: 22-2637

  • Description
  • Details
  • Reviews
Please read entire page before placing an order.

For a money saving option, give us a call and ask about getting your circuit board repaired.

This new OEM circuit board is for replacing Balboa 50859 circuit boards having a C4000R1(x) chip number.

The Balboa 50859 C4000R1(x) circuit boards are also found in hot tubs made by Cal Spa under the part numbers ELE09100010, CALELE09100010, 09100010.

Tip: The "(x)" shown above is shorthand for a range of last letters on C4000R1 chip numbers this circuit board can replace.

Please note: A list of chip numbers this circuit board can replace is specified in the CROSS REFERENCE VERIFICATION section below.

Please Note: The numbers on the new circuit board you receive may be different and the components may look slightly different but it will still connect the same and it is a fully compatible OEM replacement .
Cross Reference Verification
Step 1 of 2:
Tip: Locate the serial number on the old circuit board being replaced.
Tip: The serial number is on a sticker on the old circuit board (not the box).
Tip: The serial number is shown on the sticker preceded by S/N or P/N (part number).
Tip: The image above shows an example of a serial number sticker (click image to enlarge it).

Verify the serial number on the old circuit board being replaced is in this list.

Serial Numbers:
  • 50859
  • BAL50859

Step 2 of 2:
Tip: Locate the chip number on the circuit board you are replacing.
Tip: The whole chip number is on a sticker located on the circuit board (not the box).
Tip: This is a different sticker than the serial number sticker.
Tip: The chip number sticker usually has two lines of text and the top line is the whole chip number (the bottom line is not needed).
Tip: See image above for an example of a chip number sticker and where they're typically found on the circuit board (click the image to enlarge it).

Verify the chip number on the circuit board being replaced placed is in this list.

Chip Numbers:
  • C4000R1A
  • C4000R1B
  • C4000R1C
  • C4000R1D
  • C4000R1E
  • C4000R1F
  • CS4000R1A
  • CS4000R1B
  • CS4000R1C
  • CS4000R1D
  • CS4000R1E
  • CS4000R1F
  • C4000DLXDIGR1A
  • C4000DLXDIGR1B
  • C4000DLXDIGR1C
  • C4000DLXDIGR1D
  • C4000DLXDIGR1E
  • C4000DLXDIGR1F
  • CS4000DLXDIGR1A
  • CS4000DLXDIGR1B
  • CS4000DLXDIGR1C
  • CS4000DLXDIGR1D
  • CS4000DLXDIGR1E
  • CS4000DLXDIGR1F
Additional Cross Ref., Compatibility & Installation
If a wiring diagram is shipped with this new circuit board (or emailed) then it shall override your existing wiring diagram.

Otherwise, set wires and/or jumper pins and/or dip switches on the new circuit board to match how they are on the existing circuit board (assuming the old circuit board is already set correctly as per the original wiring diagram on the existing control box).
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.

Tip: See RELATED PRODUCTS below for more Balboa 50859 C4000R1(x) replacement options.

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: 50859
  • Part Number: C4000R1(x)
  • Item Number: 22-2637


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