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Opening Your MSpa...

Opening Your MSpa Control Unit

Updated on Nov 04, 2025

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Overview

This article demonstrates how to safely open your MSpa control unit to access internal components for maintenance or repair. The procedure applies to all MSpa control units except the Oslo model.

Models Covered

  • Frame Series: Mono, Tuscany, Duet, Naval, Tribeca
  • Premium Series: Bergen, Tekapo, Camaro, SoHo
  • Comfort Series: Ottoman, Starry, Silver Cloud
  • Aurora and Carlton models

When You Might Need This

  • Sending your control unit for repair
  • Replacing internal components
  • Accessing the heater, pump, or circuit board
  • Troubleshooting specific faults

What You'll Need

  • Phillips head screwdriver
  • Clean, dry workspace
  • Towel or soft surface to place the unit on
  • Your Shopify order number (for repair returns)

Safety Warnings

CRITICAL - White Rotation Knob

When removing or reinstalling the control unit from the spa shell, take special care with the white rotation knob:

  • After removing the screw holding the knob in place, gently pull outward whilst gently turning the knob.
  • It will slowly come out—do not force it.
  • When reinstalling, very gently push inwards whilst rotating the knob.
  • You will feel it lock into place before tightening the screw.
  • There is a thin microswitch underneath the hole the knob fits into.
  • Forcing the knob in or out can damage this microswitch, resulting in the bubbler not working.

General Safety

  • Ensure the spa is completely disconnected from power before beginning.
  • Work in a dry environment.
  • Keep track of all screws—place them in a container as you remove them.
  • Take photos during disassembly if you're planning to reassemble.

Opening the Control Unit - Step by Step

1. Prepare Your Workspace

  • Disconnect your spa from the power supply.
  • Place the control unit on a clean, dry, flat surface.
  • Have your screwdriver and container for screws ready.

2. Locate the 9 Screws

All MSpa control units (except Oslo) have 9 screws that secure the control unit housing:

  • These screws are located around the perimeter of the unit.
  • They secure the top and bottom housings together.

3. Remove the Screws

  • Using your Phillips head screwdriver, carefully remove all 9 screws.
  • Place screws in a container to avoid losing them.
  • Keep screws organised if different lengths are used.

4. Separate the Housing

  • Once all screws are removed, carefully lift the top housing.
  • You may need to gently work around the edges if the housing is snug.
  • Be mindful of any wires or connections between the top and bottom sections.

5. Access Internal Components

You now have access to:

  • Heater element: Typically a silver/metallic component.
  • Filter pump: Circulation pump with attached hoses.
  • Circuit boards: Main power board and control panel connections.
  • Wiring connections: Various electrical connections.
  • Ozone/UVC components (if equipped).

What to Do Next

For Repairs

If you're sending your control unit to Portable Spas New Zealand for repair:

  1. Note the specific fault or error code.
  2. Include your details and Shopify order number on paper inside the box.
  3. Pack securely in a banana box.
  4. Do not include inlet/outlet grills or rotation knobs.
  5. Ship to Portable Spas New Zealand.

Contact details for repair queries:

For Component Replacement

  1. Take a photo of the component and wiring before disconnecting.
  2. Note which connectors go where.
  3. Disconnect carefully, noting the orientation.
  4. Install the replacement component in the same configuration.
  5. Reconnect all wiring in the correct positions.
  6. Reassemble the housing using all 9 screws.

Reassembly Tips

  1. Check all connections: Ensure no wires are pinched.
  2. Align the housing properly: The top and bottom should fit flush.
  3. Replace all 9 screws: Tighten evenly; don't over-tighten.
  4. Test before reinstalling: If possible, test the unit before putting it back in the spa.

Important Notes

Oslo Models

The Oslo spa has a different control unit configuration and opening procedure. These instructions do not apply to Oslo models. Refer to the Oslo Quick Installation Guide.

Warranty Considerations

Opening your control unit may void warranty in some cases. If your spa is still under warranty, contact Portable Spas New Zealand before opening the unit to confirm warranty status.

Related Resources

Need Help?

If you have questions about opening your control unit or encounter any issues:

Portable Spas New Zealand

Business Hours:

  • Monday - Friday: 10:00 AM - 4:00 PM
  • Saturday/Sunday: Closed

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