MS8000 System Control Pack
About This Part
MS8000 System Control Pack — a genuine Master Spa replacement part for spas and hot tubs. Part #X300020.
This is an authentic Master Spa component, stocked and shipped by Sauna Company USA. Order genuine Master Spa part #X300020 online with fast shipping, secure checkout, and expert support from our parts team.
- Manufacturer: Master Spa
- Part Number: X300020
- Category: Controls & Spa Paks › Spa Controls › Complete Spa Paks
- Availability: Regular Stock
Detailed Description
The Master Spas X300020 is a MS8000 System Control Pack with a heater, specifically designed as a replacement for Master Spas Legend Series models. It acts as the "brain" of the hot tub, managing essential functions like temperature, filtration, and lighting.
Key Features and Specifications:
- System Type: MS8000
- Compatibility: Designed for Master Spas Legend Series; often used to upgrade or replace older MAS560 systems
- Components: Includes the control box, circuit board (typically X801070), and a heater
- Functions: Controls water temperature, filtration cycles, and lighting
- Compatibility Note: Often paired with the ML900 topside panel (X310801)
This unit is a genuine OEM part designed to ensure reliable and efficient operation of the spa.
- Ships from the USA
- Secure checkout
- Lowest price guaranteed
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Technical Specifications
| Part Number | X300020 |
| Brand | Spa Parts |
| Item Type | Part |
| Category | Complete Spa Paks,Controls & Spa Paks,Master Spa,Part #X300020,Spa Controls,X300020 |
| Shipping Method | Standard parcel |
| Availability | In Stock |
Contact us to confirm compatibility with your specific model before ordering.
Installation Overview
Control system installation — low-voltage signal wiring; typically DIY-friendly. Consult the included manual for model-specific diagrams.
- Power down the steam generator at the breaker before working with any wiring.
- Mount the control unit at the desired wall location (typically inside or adjacent to the steam room, at accessible height).
- Route the signal cable from the control to the generator junction box — keep away from high-voltage wiring.
- Connect the wires to the labeled terminals on both the control and the generator (typically color-coded or numbered).
- Secure all cable runs with clips or conduit as required by local code.
- Restore power and follow the pairing/commissioning sequence in the manual.
- Test all functions: heat, timer, aromatherapy (if equipped), and indicator lights.
Compatibility & System Requirements
This part is designed for use with:
- Spa Parts Products
Control compatibility: Steam generators have a specific control protocol. Mix-and-match between brands is not supported. Verify the exact control family (e.g., AirTempo vs. iSteamX) matches your generator.
Not sure if this fits your system? Contact us with your model number and we'll confirm before you order.
Frequently Asked Questions
Will this control work with my existing generator?
Controls are brand- and family-specific. An AirTempo control only works with AirTempo-compatible Mr.Steam generators; an iSteamX control requires an iSteamX-compatible unit. Verify your generator's model number against the compatibility list before ordering.
Can I install this control myself?
Most control installations involve low-voltage signal wiring only, which is generally considered DIY-friendly. However, if any line-voltage wiring must be moved or reconnected, a licensed electrician is required. Consult the enclosed installation manual.
What if my new control doesn't pair with the generator?
Follow the commissioning sequence in the manual exactly — it usually involves holding a button on the generator PCB while powering on the control. If pairing fails, confirm the firmware is compatible or contact the manufacturer's technical support.
Shipping & Delivery
Standard parcel shipping — ships within 1–2 business days via UPS or FedEx.
- Tracking number emailed when shipped.
- Estimated transit: 2–5 business days depending on destination.
- Expedited shipping options are available at checkout.
- Orders placed before 5pm ET on business days ship the same or next business day.
Questions about your order? Email info@saunacompanyusa.com or use our contact page.
Warranty & Returns Policy
Manufacturer Warranty: This part is covered by Spa Parts's standard manufacturer warranty against defects in materials and workmanship. Warranty duration and terms vary by part type — refer to the documentation included in the package or contact us for details.
Returns: Parts & accessories are non-returnable once ordered. This policy exists because installed or opened components cannot be resold as new. Please verify compatibility thoroughly before purchasing — we're here to help.
Defective items: If your part arrives damaged or defective, contact us within 48 hours of delivery. We will arrange a replacement at no charge with proof of the defect (photos or video).
For warranty claims, visit our Warranty Claims page.