🚀 New launch promo — 10% off orders over $300. Use code LAUNCH10
Bubbles Supply
Not sure which part you need? Upload a photo and we'll find it. →
BP100G2 Control System Bundle G6402 - Bubbles Supply

BP100G2 Control System Bundle G6402

Part #: G6402

$890.68
In stock — ships today
Qty
🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
Add to B2B order list

Not sure this fits?

Send us a photo of your old part — we'll confirm the right replacement before you order.

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

About this control pack

The Balboa BP100G2 Control System Bundle G6402 is a complete heater and control solution designed for compatible Balboa-equipped spas. This OEM replacement bundle integrates a 4.0kW heating element with the BP100G2 control system, providing reliable temperature management and resolving common HH (high heat) and OH (overheat) error codes that can shut down your spa.

Built to Balboa's exact specifications, this control system bundle delivers the precise fit and performance your spa requires. With our exact fit guarantee, same-day shipping, and comprehensive 1-year warranty, you can trust this genuine replacement to restore your spa's heating function quickly and reliably. Professional installation is recommended to ensure proper electrical connections and system integration with your existing spa components.

Exact part number

G6402

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • Balboa BP100G2 control pack
  • BP100G2 bundle
  • BP100G2 heater and control system

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

Technical specifications

Voltage
240V

Common symptoms this part fixes

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

  • HH (high heat) error code on topside display
  • OH (overheat) error code shutting down the spa
  • Spa not reaching or holding set temperature
  • Heater not firing after pump primes
  • Control system unresponsive or displaying faults
  • Spa cycling off prematurely due to thermal protection trips

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

Before you buy — quick checklist

  • Confirm your spa's existing control system is a Balboa BP100G2 — check the control box label before ordering
  • Verify your spa is wired for 240V service — this is not a 120V unit
  • Check the kW rating of your current heater element to confirm 4.0kW compatibility
  • Inspect your heater manifold unions and plumbing configuration before removal to ensure drop-in compatibility
  • Note your current topside panel model — confirm it is compatible with the BP100G2 control system
  • Have your spa's wiring diagram on hand before disconnecting the old control system

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

Install difficulty: Hard — Technician recommendedTypically 2–4 hours

What's in the box

  • BP100G2 control system unit
  • 4.0kW heating element assembly
  • Connecting wiring harness
  • Mounting hardware

If your order is missing any items listed above, contact hello@bubblessupply.com within 48 hours of delivery.

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.

🔒 Secure checkout · SSL encrypted·🇺🇸🇨🇦 Serving the US and Canada·↩️ 30-day hassle-free returns·📦 Same-day fulfillment