🫧 LX AP400-V2 400W Spa Air Blower – Double Impeller Power for Superior Bubble Massage

Powerful 400W performance delivering robust, invigorating bubble therapy for medium to large spas with whisper-quiet operation 💨

📝 Product Overview

The LX AP400-V2 is a high-performance 400W air blower engineered for hot tubs, spas, and whirlpool baths requiring powerful, consistent bubble massage capability. Featuring LX’s proven double impeller (V2) design, this blower delivers impressive airflow of up to 1.65 m³/min whilst maintaining remarkably quiet operation below 68 dB – making it ideal for evening relaxation sessions.

Built with a reinforced, heat-resistant ABS plastic housing and powered by a dedicated low-noise excitation motor with Class F insulation, the AP400-V2 provides the perfect balance of power, efficiency, and durability. With capacity for 12-24 air jets, it’s ideally suited for medium to large residential spas where a comprehensive, vigorous bubble massage experience is desired across multiple seating positions.

The V2 designation indicates LX’s upgraded double impeller motor design, offering improved longevity with carbon brushes rated for approximately 1,500 hours, whilst maintaining full backward compatibility with earlier AP400 models. Widely used by major spa manufacturers and trusted by professionals worldwide, this blower represents exceptional value for demanding spa applications.

⭐ Key Features

• ✅ Powerful 400W Double Impeller Motor – Two-stage impeller technology delivers robust airflow up to 1.65 m³/min with softer, more comfortable bubble action and dramatically reduced high-frequency noise
• ✅ Quiet Operation Under 68 dB – Optimised airflow dynamics and low-noise excitation motor ensure peaceful spa sessions, even during evening use when noise sensitivity is highest
• ✅ Extensive Jet Capacity – Capable of driving 12-24 air jets simultaneously, providing comprehensive bubble coverage for medium to large hot tubs
• ✅ Upgraded V2 Motor Technology – Latest generation motor design with improved carbon brushes rated for approximately 1,500 hours of operation, fully compatible with older AP400 models
• ✅ Class F Motor Insulation – Premium insulation rated for temperatures up to 155°C with VDE/UL approved thermal protection, ensuring long-term reliability in demanding spa cabinet environments
• ✅ Flexible Mounting Options – Angled mounting bracket enables installation either upright or on the side to suit various cabinet configurations
• ✅ Plug-and-Play Installation – Standard 1″ threaded union (32-33mm) and 1.5m cable with AMP-style connector for straightforward replacement and upgrade applications
• ✅ Energy Efficient Design – Despite powerful 400W output, draws only 2.8A at 230V, providing excellent performance-to-consumption ratio
• ✅ Multi-Brand Compatibility – Direct replacement for blowers in Danz Spas, Spa Serve, AMC Winer, Cascade, MAAX, Monalisa, Trinity, and many other spa brands

🔧 Technical Specifications

Specification	Details
Brand	LX Whirlpool
Model	AP400-V2
Product Type	Spa Air Blower
Motor Power	400W
Voltage	220-240V AC (120V option available)
Frequency	50/60 Hz
Current Draw (230V)	2.8A
Maximum Airflow	1.65 m³/min
Maximum Air Pressure	1.4m
Noise Level	<68 dB(A)
Recommended Jet Capacity	12-24 jets
Impeller Type	Double Impeller (V2) – Two-Stage
Housing Material	Reinforced Heat-Resistant ABS Plastic
Motor Insulation	Class F
Thermal Protection	VDE/UL Approved
Internal Fuse (230V)	4.0A
Internal Fuse (110V)	7.5A
Carbon Brush Life	~1,500 hours
Union Connection	1″ Threaded (32-33mm OD)
Cable Length	1.5m
Connector Type	AMP-style plug (Mini J&J adapter available)
Dimensions (L × W × H)	270 × 170 × 170mm
Certifications	CE, 3C, TÜV, RoHS
Suitable For	Hot Tubs, Whirlpool Baths, Spas
Warranty	2 years (excluding carbon brushes)

Alternative Part Numbers

Manufacturer	Part Number
LX Whirlpool	AP400-V2
Astral	RPOR0186 (AP400)
Volition	2V-004AP
Jazzi	JAPU8

🏠 Real World Applications

🛁 Medium to Large Hot Tub Enhancement

The AP400-V2 is perfectly matched to 4-8 person hot tubs and portable spas requiring powerful, comprehensive bubble massage. With capacity for 12-24 air jets, it delivers vigorous bubble action across multiple seating positions simultaneously, creating an immersive hydrotherapy experience for families and entertaining. The sub-68 dB noise level ensures relaxation isn’t compromised by excessive blower noise.

💆 Whirlpool Bath & Hydromassage Systems

Designed as a robust solution for larger domestic whirlpool installations, the AP400-V2 provides the airflow volume needed to drive multiple jet banks effectively. The 400W motor ensures consistent bubble performance even with extended pipe runs and higher back-pressure situations, whilst the efficient 2.8A current draw keeps running costs manageable.

🔄 Blower Replacement & Upgrade

The universal 1″ threaded union and AMP connector make the AP400-V2 an excellent direct replacement for worn, noisy, or failed blowers. Suitable for replacing blowers rated between 250-500W, it’s commonly found as OEM equipment in Chinese spa brands including Danz Spas, Spa Serve, AMC Winer, Cascade, MAAX, Monalisa, and Trinity. The V2 motor is fully backward compatible with earlier non-V2 models.

♨️ Large Spa Pool Applications

Suitable for the nozzle systems in larger spa pools where multiple jet zones require simultaneous high-volume airflow. The robust 400W motor and two-stage impeller design handle the back-pressure from extended pipe networks without compromising bubble intensity at the jet outlets.

🏡 Cabinet Heat Recovery Tip

A carefully positioned non-heated blower in the hot tub cabinet will draw warm air from pumps and heating equipment, effectively pre-warming the air before it reaches the jets. This simple positioning strategy can enhance bubble comfort without the need for a heated blower unit.

🛠️ Installation Considerations

⚠️ Professional Installation Recommended

All electrical parts must be installed by a professional and trained spa mechanic. Incorrect installation may invalidate warranty.

⚡ Electrical Requirements

• Supply Voltage: 220-240V AC (120V option available)
• Frequency: 50/60 Hz (universal)
• Current Draw: 2.8A at 230V
• Grounding: The air blower must be properly grounded to prevent electrical shock or injury
• Pin-Out Check: Always verify the pin-out diagram on your spa pack before wiring

🔧 Mounting & Positioning

• Orientation: Angled mounting bracket allows upright or side-mounted installation
• Location: Install inside spa cabinet, within 2m of the spa
• Application: Designed for portable spa use only – not suitable for in-ground applications
• Ventilation: Ensure adequate airflow around the blower to prevent overheating
• Access: Position for easy access for future maintenance and carbon brush replacement

🔌 Connection Details

• Union Size: 1″ threaded (32-33mm OD)
• Cable Length: 1.5m with AMP-style connector
• Compatibility: Suits Aeware in.ye, Balboa controllers (does NOT suit SpaNet or SpaQuip controllers without adaptation)
• Adapter Options: Mini J&J adapters available separately if required

⚠️ Critical Safety Notes

• Do NOT operate blower immediately after gluing unions – PVC glue fumes entering the blower can cause explosion if motor is started. Either connect the blower while already running, or wait at least 1 hour for fumes to dissipate before screwing the union onto the blower
• Check one-way valves – If replacing a failed blower due to water ingress, verify the air line check valve is functioning correctly before installing the new unit
• Do NOT block outlet – Operating with a blocked outlet will cause air temperature to rise rapidly
• Cut power before inspection – Always disconnect electrical supply before any maintenance
• Voltage matching – Ensure replacement voltage matches your existing system (230V vs 120V)
• Not for in-ground use – Output flow is not sufficient for in-ground spa applications
• Power rating limits – Do NOT use to replace blowers rated 850W-1500W

🔍 Regular Maintenance Tips

• Ensure proper ventilation around the blower to prevent overheating
• Keep the blower dry and protected from direct water contact
• Regularly inspect connections and housing for signs of wear or damage
• Clean the air intake periodically to maintain optimal performance
• Check carbon brushes at regular service intervals

🏆 Why Choose the LX AP400-V2

• ✅ Superior Double Impeller Technology – The V2 designation indicates LX’s advanced two-stage impeller design, delivering softer airflow with significantly reduced high-frequency noise compared to single impeller alternatives
• ✅ Extended Motor Life – Latest generation motor with Class F insulation, VDE/UL approved thermal protection, and improved carbon brushes rated for approximately 1,500 hours of operation
• ✅ Proven Brand Reliability – LX Whirlpool (Guangdong LX Pump Co., Ltd.) is one of China’s largest manufacturers of spa pumps and blowers, supplying major hot tub brands worldwide with annual production capacity exceeding 2 million units
• ✅ Comprehensive Certification – CE, TÜV, 3C, and RoHS certified for peace of mind across UK, European, and international installations
• ✅ Wide OEM Compatibility – Factory-fitted in numerous spa brands including Danz, Spa Serve, AMC Winer, Cascade, MAAX, Monalisa, and Trinity, with cross-reference part numbers for Astral, Volition, and Jazzi
• ✅ Optimal Power-to-Noise Ratio – 400W motor delivers robust performance whilst maintaining quiet operation under 68 dB, ideal for residential environments

🛒 Why Buy From Parts4Tubs?

• ✅ UK-Based Specialist Supplier – Dedicated expertise in spa and hot tub components with deep product knowledge
• ✅ Expert Technical Advice – Our team can help you confirm compatibility, check pin-out diagrams, and answer installation questions
• ✅ Fast UK Delivery – In-stock items dispatched promptly for quick turnaround
• ✅ Competitive Pricing – Great value on genuine quality components
• ✅ Genuine Manufacturer Parts – Authentic LX Whirlpool products, not grey market alternatives
• ✅ Dedicated Customer Support – Responsive assistance before, during, and after your purchase
• ✅ Secure Online Ordering – Safe, encrypted transactions for peace of mind
• ✅ Easy Returns Policy – Hassle-free returns if the product isn’t right for your application

✨ Summary

The LX AP400-V2 delivers the perfect combination of powerful 400W performance, quiet operation, and proven reliability for medium to large hot tubs and spa installations. With its upgraded double impeller design, extended motor longevity, and comprehensive multi-brand compatibility, this air blower is the ideal choice for spa owners seeking robust bubble massage without excessive noise. CE, TÜV, and RoHS certified, backed by a 2-year warranty, and trusted as OEM equipment by leading spa manufacturers worldwide – it’s a quality investment that will enhance your hydrotherapy experience for years to come. Order yours today and transform your spa’s bubble massage performance.