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D1SR Circuit Board 51485 - Bubbles Supply

D1SR Circuit Board 51485

Part #: 51485

$635.40
In stock — ships today
Qty
🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
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Fits these systems

Balboa

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

Before you buy — quick checklist

  • Confirm your existing board is labeled D1SR — check the board itself, not just the control pack housing
  • Verify your spa uses an 8-pin phone cable connection before ordering
  • Take a photo of your existing board and cable configuration for reference during installation
  • Check whether your spa is within warranty before replacing the board yourself
  • Confirm this is a Balboa-based D1 Spas system — not all D1 spas use the same control platform

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

Exact part number

51485

Save this for ordering or warranty claims

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 clear
  • No response from topside control panel
  • Pumps or heater not responding to commands
  • Spa stuck in a single mode or function
  • Erratic or unresponsive filtration cycling
  • Complete loss of spa control functions

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

About this circuit board

The Balboa D1SR Circuit Board 51485 is a Serial Deluxe control pack replacement designed for compatible Balboa spa systems. This OEM circuit board features an 8-pin phone cable connection and provides reliable control for your spa's essential functions including pumps, heater, and filtration cycles.

When you order this Balboa control pack from Bubbles Supply, you get an exact fit guarantee, same-day shipping, and our comprehensive 1-year warranty for complete peace of mind. As Canada's spa parts authority, we stock only genuine OEM components to ensure your spa operates at peak performance. Before installation, verify your existing circuit board matches the D1SR model number and 8-pin phone cable configuration to ensure proper compatibility with your spa system.

Also known as / Replaces

This part replaces or is interchangeable with:

  • 51485 circuit board
  • D1SR board
  • D1SR control pack

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

Install difficulty: Hard — Technician recommendedTypically 60-120 minutes

Warranty

1 year 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.

AI Fitment Assistant

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

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