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EL2000 MQ2KUR1A Circuit Board 600-6289 - Bubbles Supply

EL2000 MQ2KUR1A Circuit Board 600-6289

Part #: 600-6289

$1111.94
In stock — ships today
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Also replaces

600-6289
1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this circuit board

The EL2000 MQ2KUR1A Circuit Board is a genuine OEM replacement control board designed for Marquis spa systems. This Balboa-manufactured circuit board features Mach 2.1 technology and carries part number 600-6289, ensuring precise compatibility with your spa's control pack system.

As an authentic Marquis component, this circuit board delivers reliable performance for your spa's essential functions including heating, filtration, and pump control. At Bubbles Supply, we guarantee an exact fit for your system and back every purchase with our comprehensive 1-year warranty. Orders ship the same day for fast resolution of your spa repair needs. Professional installation is recommended for proper system integration and to maintain warranty coverage on both the part and your spa system.

Exact part number

600-6289

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 600-6289
  • Balboa EL2000 Circuit Board
  • EL2000 MQ2KUR1A
  • Marquis EL2000 Control Board
  • MQ2KUR1A 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 displays error codes and will not clear
  • Heater not activating despite correct water temperature settings
  • Pumps or jets not responding to topside control commands
  • Spa powers on but display is blank or unresponsive
  • Filtration cycle not running on schedule
  • Intermittent shutdowns or loss of all spa functions

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

Before you buy — quick checklist

  • Confirm your existing board's part number matches MQ2KUR1A or 600-6289 exactly — do not rely on visual similarity alone
  • Verify this is a Marquis-branded spa, as this is an OEM-specific board not designed for cross-brand use
  • Check the Mach 2.1 system designation on your existing control pack before ordering
  • Inspect the topside control cord and sensor connections for damage before assuming the board has failed — a faulty sensor can mimic board failure
  • Document all wire harness and connector positions with photos before disconnecting the old board

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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