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Clim8zone II RS485 73011 - Bubbles Supply

Clim8zone II RS485 73011

Part #: 73011

$1477.85
In stock — ships today
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🔒 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 module is the Clim8zone II — not the original Clim8zone or a different generation
  • Verify your spa control system uses RS485 communication protocol
  • Confirm your system runs on 120V — do not install on 240V circuits
  • Match the part number 73011 exactly against your current module label before ordering
  • Check that your spa control board has a compatible RS485 port for this amplifier

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

Exact part number

73011

Save this for ordering or warranty claims

Technical specifications

Voltage
120V

Common symptoms this part fixes

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

  • Zone heating not responding to control panel commands
  • RS485 communication errors or faults on spa display
  • Spa zones not independently controllable
  • Amplifier module showing no power or status lights
  • Intermittent loss of zone communication between control boards

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

About this hardware/other

The Clim8zone II RS485 73011 is a genuine Balboa 120V amplifier module designed for compatible spa control systems. This OEM electrical component enables precise zone control and communication within your spa's heating and circulation network, delivering the reliable performance Balboa is known for.

At Bubbles Supply, we guarantee this amplifier is the exact fit for your system, backed by our comprehensive 1-year warranty and same-day shipping on in-stock orders. The 120V RS485 specification ensures proper voltage compatibility and seamless data communication between your spa's control components. Professional installation is recommended to ensure proper wiring connections and system integration - always verify part numbers match your existing amplifier before installation to maintain optimal spa performance and safety.

Also known as / Replaces

This part replaces or is interchangeable with:

  • Clim8zone 2
  • Clim8zone II
  • RS485 amplifier module

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

Install difficulty: Hard — Technician recommended

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.

AI Fitment Assistant

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

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