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VS504SZR Circuit Board OP33-0612-08CB - Bubbles Supply

VS504SZR Circuit Board OP33-0612-08CB

Part #: OP33-0612-08CB

$1031.36
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this circuit board

The VS504SZR Circuit Board OP33-0612-08CB is a genuine OEM control pack circuit board designed for Artesian spas equipped with Balboa MVS504SZ control systems. This critical component manages your spa's essential functions including heating, filtration, and jet operation, ensuring reliable performance and optimal water temperature control.

Engineered to Balboa's exacting specifications, this circuit board delivers the precise electronic control your Artesian spa requires. At Bubbles Supply, we guarantee an exact fit with our authentic OEM parts, backed by our comprehensive 1-year warranty and same-day shipping on most orders. Professional installation is recommended to ensure proper integration with your existing control system and to maintain your spa's warranty coverage.

Exact part number

OP33-0612-08CB

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Also known as / Replaces

This part replaces or is interchangeable with:

  • Artesian spa main board
  • Balboa MVS504SZ control board
  • OP33-0612-08CB circuit board
  • VS504SZR 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 is completely unresponsive or dead
  • Topside panel shows error codes that won't clear
  • Heater not activating despite correct water flow
  • Jets or pumps not responding to panel commands
  • Spa cycles on and off erratically
  • Filtration cycles not running on schedule

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

Before you buy — quick checklist

  • Confirm your spa uses a Balboa MVS504SZ control system — check the label on your existing pack or control box
  • Verify the SKU OP33-0612-08CB matches the part number printed on your current board
  • Rule out a failed topside panel or transformer before replacing the main board
  • Check for visible burn marks, corrosion, or damaged capacitors on the old board to confirm it is the failed component
  • Note your spa's wiring configuration before removal — photograph all connections

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

Install difficulty: Hard — Technician recommendedTypically 60-120 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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