Coolbreeze QA Wall Controller

When your evaporative cooler's wall controller starts playing up, it's a real pain, especially in the middle of a scorcher. This Coolbreeze QA Wall Controller (CBSP3221) is the genuine replacement for systems running an MRU control board, getting your unit back in shape without fuss.

I've swapped out enough of these over the years to know that using the right part saves you a second call-out and keeps the homeowner happy, particularly when the summer heat kicks in across Australia. This unit is built to spec for reliable control.

Best For

• HVAC technicians performing evaporative cooler maintenance.
• Service and repair teams for Coolbreeze systems.
• Competent DIY owners replacing a faulty Coolbreeze controller.

Compatibility

This Coolbreeze QA Wall Controller is specifically designed to suit Coolbreeze evaporative cooling systems that utilise the MRU Control Board (part number SP3000). If you're running a different model, check fittings and specs before ordering.

Features

• Genuine Coolbreeze replacement part for exact fit and function.
• Direct compatibility with Coolbreeze MRU Control Boards (SP3000).
• Ensures full control over your evaporative cooling unit.
• Reliable operation to keep your system running efficiently.

What's in the Box

• 1 x Coolbreeze QA Wall Controller (CBSP3221)

Using It on the Job

1. Isolate Power: Always disconnect mains power to the evaporative cooler at the switchboard before commencing any work.
2. Remove Old Controller: Carefully detach the existing wall controller, noting how it's wired. Take a photo if it helps.
3. Connect New Controller: Wire the new Coolbreeze QA Wall Controller (CBSP3221) exactly as the old one was connected to the existing wiring.
4. Mount Controller: Secure the new controller firmly to the wall.
5. Restore Power & Test: Re-establish power to the unit and test all functions of the new controller to ensure it's operating correctly.
6. Final Check: Confirm the unit responds to all commands, including fan speed, pump operation, and mode changes.

Limitations & Safety Notes

• Only compatible with Coolbreeze systems using the MRU Control Board (SP3000).
• Always ensure power is isolated before working with electrical components.
• Installation should be performed by a qualified tradesperson or a competent individual following manufacturer instructions.
• Follow all relevant Australian electrical standards and Safe Work guidance.

Tradie Pro Tip

Before you even pull the old controller off the wall, snap a clear photo of the wiring. Different models and revisions can have slightly different terminal layouts, and that picture can save you a heap of head-scratching when connecting the new one.

Pair With

Pair with other genuine Coolbreeze spare parts or a universal wiring multimeter for troubleshooting electrical issues during installation.