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IQ2020 Limelight Control System 76836 - Bubbles Supply

IQ2020 Limelight Control System 76836

Part #: 76836

$1909.52
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this control pack

The IQ2020 Limelight Control System (part #76836) is an OEM replacement control unit designed for Hot Spring Spas models. This genuine Watkins-manufactured system operates at 60Hz frequency and serves as the central command hub for your spa's heating, circulation, and operational functions. When your spa displays HH or OH error codes, this control system typically provides the solution to restore normal operation.

Built to Hot Spring's exact specifications, this control system delivers the precise fit and reliable performance your spa demands. Bubbles Supply backs every IQ2020 control system with our exact fit guarantee, same-day shipping on in-stock orders, and a comprehensive 1-year warranty for complete peace of mind. Professional installation is strongly recommended for this electrical component to ensure proper wiring connections and optimal spa performance.

Exact part number

76836

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 76836 control pack
  • Hot Spring spa control unit
  • IQ 2020 control system
  • Limelight control box

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 displaying HH error code (overheating fault)
  • Spa displaying OH error code (overheat shutdown)
  • Spa not heating to set temperature
  • Spa controls unresponsive or frozen
  • Heater cycling on and off erratically
  • Spa loses programmed settings after power cycle

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

Before you buy — quick checklist

  • Confirm your spa is from the Limelight Collection — the IQ2020 system has multiple variants and not all are interchangeable
  • Locate the part number on your existing control system label and verify it matches 76836 before ordering
  • Check your spa's manufacturing date — control system compatibility can vary by production year within the same model line
  • Document all wiring connections with photos before disconnecting the old unit
  • Verify your incoming power supply matches the voltage requirements of this specific control system
  • Confirm whether your spa has any add-on accessories (ozone, lighting, audio) that must be compatible with this control unit revision

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

Install difficulty: Hard — Technician recommendedTypically 2–4 hours (professional electrician 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.

Customer reviews

AI Fitment Assistant

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

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