⚡ Balboa GL2001 Mach 3 PCB – Spa Control Circuit Board

Replacement circuit board for GL2001 Mach 3 plastic control boxes – restore precise management to your spa system.

📋 Product Overview

The Balboa GL2001 Mach 3 PCB is a replacement circuit board for the GL2001 Mach 3 control box, designed for precise management of spa systems. It supports various pump configurations, a heater, ozone, and light, and is compatible with ML range topside controls such as the ML400, ML700, and ML900.

This PCB must only be used with a GL2000 Mach 3 plastic control box and should be installed by a competent individual or tradesman to avoid damage and warranty invalidation.

⚠️ IMPORTANT: This PCB is used with an expander board (to buy separately).

✨ Key Features

✅ 230V 50Hz Operation – Designed for UK and European electrical systems

✅ Flexible Pump 1 Control – Single or dual-speed pump with optional circulation pump

✅ Pump 2 Support – Single or dual-speed secondary pump

✅ Air Blower – 1 unit air blower output

✅ Built-in Heater Control – Integrated heater management

✅ Ozone Ready – Ozone generator output included

✅ Dual Lighting Options – Supports 12V or 230V spa lighting

✅ M7 Sensor System – Dual M7 sensor inputs (x2)

✅ No Pressure Switch Required – Simplified installation

✅ ML Panel Compatible – Works with ML400, ML700, and ML900 topside controls

✅ Expander Board Compatible – Used with expander board (sold separately)

🔧 Technical Specifications

🔗 Compatibility Guide

Compatible Control Boxes

⚠️ This PCB is for PLASTIC control boxes only.

Compatible Topside Panels

Required Accessories

⚙️ Board Functions & Controls

Pump Control

Additional Outputs

Sensor System

🛠️ Installation Requirements

⚠️ IMPORTANT: Installation should be carried out by a competent individual or tradesman to avoid damage and warranty invalidation.

Pre-Installation Checklist

• Verify this is a PLASTIC GL2001 Mach 3 control box
• Ensure you have the required expander board
• Disconnect all power at the isolator/breaker
• Photograph existing wiring connections
• Note existing DIP switch settings
• Allow capacitors to discharge (wait 5 minutes minimum)

Electrical Requirements

⚠️ Safety Warnings

Electrical Safety

• ⚠️ ALWAYS disconnect power before any work
• ⚠️ Installation by competent tradesman recommended
• ⚠️ Ensure correct voltage supply (230V, 50Hz)
• ⚠️ Verify RCD protection is installed and functioning
• ⚠️ Never operate spa with covers removed from electrical components

Important Notes

• ⚠️ This PCB is for PLASTIC control boxes only
• ⚠️ Requires expander board (sold separately)
• ⚠️ Incorrect installation may void warranty
• ⚠️ Damage caused by improper installation is not covered

🎯 Ideal Applications

This board is designed for:

• Replacing faulty GL2001 Mach 3 circuit boards
• Restoring full spa functionality
• Systems using ML400, ML700, or ML900 topside panels
• Use with expander board for full functionality

❓ Frequently Asked Questions

Q: How do I know if this board fits my spa? A: This board fits GL2001 Mach 3 PLASTIC control boxes only.

Q: What topside panels work with this board? A: Compatible with ML range topside controls including ML400, ML700, and ML900.

Q: Do I need an expander board? A: Yes. This PCB is used with an expander board which must be purchased separately.

Q: Do I need a qualified electrician to install this? A: Installation should be carried out by a competent individual or tradesman to avoid damage and warranty invalidation.

Q: What is the difference between GL2000 and GL2001? A: The GL2001 requires an expander board and has different pump/blower configurations. Check your existing control box model before ordering.

Q: What sensors does this board use? A: The board uses M7 sensors (x2) and does not require a pressure switch.

Q: What lighting options are available? A: The board supports both 12V and 230V spa lighting.

🏆 Why Choose the Balboa GL2001 Mach 3 PCB

• ✅ Balboa Quality – Trusted brand in spa control systems
• ✅ 230V 50Hz – Designed for UK electrical systems
• ✅ Flexible Pump Control – Supports multiple pump configurations
• ✅ Air Blower Output – Dedicated blower control
• ✅ M7 Sensor System – No pressure switch required
• ✅ ML Panel Compatible – Works with ML400, ML700, ML900

🤝 Why Buy From Parts4Tubs

• ✅ UK-based company with local support
• ✅ Fast UK delivery
• ✅ Expert technical advice from spa specialists
• ✅ Competitive pricing
• ✅ Full warranty support
• ✅ Easy returns within 30 days
• ✅ Compatible parts and accessories available
• ✅ Expander boards also available

✨ Summary

The Balboa GL2001 Mach 3 PCB is a replacement circuit board for GL2001 Mach 3 plastic control boxes. Operating at 230V 50Hz, this board supports flexible pump configurations including single or dual-speed Pump 1 with optional circulation pump, single or dual-speed Pump 2, and a dedicated air blower output. Features include built-in heater control, ozone output, 12V or 230V lighting support, and dual M7 sensors eliminating the need for a pressure switch. Compatible with ML400, ML700, and ML900 topside panels. This PCB requires an expander board (sold separately). Dimensions: 290mm × 150mm × 155mm. Installation by a competent tradesman is required. This PCB fits PLASTIC GL2001 Mach 3 control boxes only.