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VS5 Circuit Board G1920 - Bubbles Supply

VS5 Circuit Board G1920

Part #: G1920

$179.01
In stock — ships today
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🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
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Also replaces

G1920
1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this circuit board

The Balboa VS5 Circuit Board G1920 is an OEM expander kit circuit board designed for Balboa VS520Z, VS525Z, VS520SZ, and VS520DZ control systems. This genuine Balboa replacement part restores full electronic control functionality to your spa's control pack, ensuring reliable operation of pumps, heaters, and other spa components.

When you order from Bubbles Supply, you get an exact fit guarantee backed by our 1-year warranty on this OEM circuit board. We ship same-day to get your spa running quickly. This expander kit circuit board integrates seamlessly with compatible Balboa control systems to maintain optimal spa performance. Always verify your existing circuit board part number matches G1920 before installation to ensure proper compatibility with your specific control pack configuration.

Exact part number

G1920

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • Balboa VS5 expander kit board
  • G1920
  • G1920 board
  • VS5 circuit board
  • VS5 expander board

Looking for an older part number? Check our supersession lookup tool

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

  • Spa displays error codes and will not resume normal operation
  • Control pack unresponsive — no panel response, no pump or heater activation
  • Spa components cycling erratically or failing to respond to panel commands
  • Heater or pump circuits not activating despite correct settings
  • Expander functions (additional pump, blower, or light circuits) not working
  • Control pack powers on but spa accessories remain dead

Not sure if this is your problem? Try our diagnostic centre or .

Before you buy — quick checklist

  • Confirm your existing board's part number is G1920 — check the label printed directly on the board
  • Verify your control pack is one of the compatible VS5 series systems: VS520Z, VS525Z, VS520SZ, or VS520DZ
  • Inspect the board and surrounding components for visible burn marks or corrosion — secondary damage may require additional parts
  • Power down and disconnect the spa at the breaker before removing the existing board
  • Document or photograph all wiring connector positions before disconnecting anything
  • Check for any water intrusion in the control pack enclosure and address the source before installing the new board

Reading the checklist now prevents 90% of returns. Worth the 60 seconds.

Install difficulty: Medium — Some experience neededTypically 45-90 minutes

Warranty

1 year manufacturer warranty against defects

Covers manufacturing defects. Does not cover improper installation, normal wear, or accidental damage.

Warranty claims: warranty@bubblessupply.com

Perfect Fit Guarantee

Ordered with our help and the part doesn't fit? Contact us before installation. We'll resolve it with an exchange, replacement recommendation, or return approval.

Learn about our Perfect Fit Guarantee →

Shipping

We ship across the US and Canada. US orders ship from our US warehouse to US customers; Canadian orders ship from our Canadian warehouse to Canadian customers — no cross-border shipping, no surprise duties. In-stock orders placed before 3pm CT ship same day. Standard shipping $9.95 flat rate. Free shipping on orders over $200. Express options available at checkout.

Returns

30-day hassle-free returns on unused parts in original packaging. Contact us before returning to receive your RMA number.

Frequently asked questions

Check the Compatibility section above to confirm fitment for your spa brand and model. If your model is not listed, use our fitment selector at /pages/find-my-part or ask our parts AI for a personalized recommendation.

In-stock orders placed before 3pm CT ship the same day. You will receive tracking information by email as soon as your order ships.

We accept returns within 30 days of delivery for unused items in original packaging. Email returns@bubblessupply.com with your order number to start a return. Installed electrical parts cannot be returned for safety reasons.

Yes, all new parts come with a 1-year warranty against manufacturing defects. Warranty does not cover damage from improper installation or normal wear and tear.

Customer reviews

AI Fitment Assistant

Tell us your spa model and we will confirm this part fits before you buy.

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