⚡ Gecko IN.XE Control Box – Entry-Level to Mid-Range Spa Control System
Advanced control box engineered for precision spa management with integrated heater technology.
📋 Product Overview
The Gecko IN.XE Control System represents the ideal solution for entry-level to mid-range hot tub applications. Designed by Gecko Alliance, this versatile control box features an integrated 3.0 kW heat.wav water heater and supports comprehensive spa functionality including single or dual-speed pump operation, optional circulation pump, blower, ozone, and 12 V lighting.
Built with Gecko’s signature in.link connector technology, the IN.XE ensures safe, waterproof connections with colour-coded polarizers that eliminate miswiring risks. The IPx5-rated enclosure delivers robust protection against water ingress, making it suitable for demanding spa environments.
Compatible with a wide range of Gecko topside panels (sold separately), the IN.XE combines breakthrough features with optimal price/performance configurations. Whether you’re replacing an existing control system or building a new spa, the IN.XE delivers reliable control with advanced safety protections including solid-state dry-fire protection and kinetic heat monitoring.
✨ Key Features
✅ Integrated 3.0 kW Heat.wav Heater – Factory-fitted heater with 2-inch socket union sleeves for straightforward plumbing connection
✅ Dual Pump Support – Controls one single or dual-speed pump with optional circulation pump, plus a single-speed secondary pump (IN.XE-5 model)
✅ in.flo Dry-Fire Protection – All-electronic solid-state protection eliminates mechanical flow switches and prevents heater damage
✅ in.kin Kinetic Heat Monitoring – First UL-approved kinetic heating protection manages water temperature increases from pump heat dissipation
✅ in.link Connector System – Colour-coded, waterproof plug-and-play connections with latch mechanism for secure, mistake-proof installation
✅ IPx5 Watertight Enclosure – Laboratory-tested water protection with in.seal technology for demanding spa environments
✅ Multiple Topside Compatibility – Works with in.k200, in.k300, in.k450, in.k500, in.k600 (static), in.k800, in.k1000, K-19, K-35, K-8, and K-4 keypads
✅ Smart Winter Mode – Integrated freeze protection to safeguard your spa during cold weather
✅ in.touch WiFi Compatible – Supports Gecko in.touch wireless interface for smartphone control (sold separately)
✅ TÜV Certified – European safety certification to EN/IEC 60335 standards
✅ Programmable Filtration Cycles – Customisable filter schedules for optimal water quality
✅ Self-Diagnostic System – Built-in error detection with keypad display for easy troubleshooting
⚡ Electrical Specifications
| Specification | European Model (in.xe.ce) |
|---|---|
| Input Voltage | 230 V / 400 V nominal (+5/-10%) |
| Frequency | 50 Hz |
| Maximum Amperage (Single-Phase) | 40 A |
| Maximum Amperage (Dual-Phase) | 20 A per phase |
| Heater Output | 3.0 kW at 230 V (integrated) |
| Heater Voltage | 230 V |
| Minimum Water Flow | 68 LPM (18 GPM) |
| RCD Requirement | 30 mA maximum rated operating residual-current |
⚠️ Important: European models must always be connected to a circuit protected by a Residual-Current Device (RCD) having a rated operating residual-current not exceeding 30 mA.
🔌 Output & Connection Specifications
| Output | Voltage | Maximum Current | Typical Device |
|---|---|---|---|
| Output 1 | 230 V | 15 FLA / 60 LRA (in-rush) | Pump 1 (high and low speed) |
| Output 2* | 230 V | 15 FLA / 60 LRA (in-rush) | Pump 2 |
| Output 3* | 230 V | 6 FLA / 10 A | Circulation Pump or Blower |
| Output 4 | 230 V | 6 FLA / 10 A | Ozone Generator |
| Output 5 | 230 V | 10 A (always ON) | Audio/Video accessories |
| L1 | 12 V AC | 1 A | Light |
*Outputs 2 and 3 available on IN.XE-5 model only
Connection Type: in.link connectors with High-Current (HC), Low-Current (LC), and Low Voltage (LV) options
Heater Connections: 2-inch socket heater union sleeves
🔗 Compatibility
Compatible Topside Panels (Sold Separately):
| Panel Model | Type | Buttons | Notes |
|---|---|---|---|
| in.k200 | LED Display | 4 | Entry-level main keypad |
| in.k300 | LCD Display | 4 | Standard main keypad |
| in.k450 | LCD Display | 7 | Replaces in.k400, popular choice |
| in.k500 | Colour LCD | 7 | Premium display option |
| in.k600 (Static) | LCD Display | 11 | Full-function keypad |
| in.k800 | Colour LCD | 10 | Advanced main keypad |
| in.k1000 | Colour Touchscreen | Touch | Premium touchscreen option |
| K-19 | LED Display | 4 | Legacy compatible |
| K-35 | LED Display | 6 | Legacy compatible |
| K-8 | LCD Display | 8 | Legacy compatible |
| K-4 | LCD Display | 8 | Legacy compatible |
⚠️ Topside panel not included with control box. Select the appropriate keypad based on your spa’s configuration and feature requirements.
WiFi Compatibility: The IN.XE supports the in.touch WiFi interface for remote control via iOS devices (in.touch module sold separately).
📐 Physical Specifications
| Specification | Value |
|---|---|
| Dimensions (W x H x D) | 441.5 x 298.5 x 129 mm (17.38″ x 11.75″ x 5.1″) |
| Control Box Only (L x W x H) | 308 x 96 x 186 mm |
| Weight | 4.76 kg (10.5 lb) |
| Enclosure Rating | IPx5 |
| Plumbing Size | 2-inch (50 mm) |
| Mounting Options | Floor mount or wall mount |
| Cable Entry | 1″ NPT strain relief (hole diameter: 34.42 mm) |
🛡️ Safety Features
| Safety Feature | Description |
|---|---|
| in.flo Dry-Fire Protection | All-electronic solid-state protection built into heat.wav heater – no mechanical switches |
| in.kin Kinetic Heat Monitoring | Hardware protection shuts accessories off if water overheating is detected |
| Thermal Cut-off | Automatic shutdown if water temperature at heater reaches 119°F (48°C) |
| High Temperature Warning | Alert when spa water reaches 108°F (42°C) |
| Freeze Protection | Smart Winter Mode protects system during cold weather |
| in.axess Board Protection | Electronic components in separate, inaccessible compartments |
| in.seal Watertight Design | IPx5-rated protection against water infiltration |
| Probe Verification | Continuous monitoring of temperature probe readings |
Certifications (European Model):
| Certification | Standard |
|---|---|
| TÜV | EN/IEC 60335-1-1/A15:2011 |
| TÜV | EN/IEC 60335-2-60/A12:2010 |
| EMC | EN55014-1, EN55014-2 |
| EMC | EN61000-3-2, EN61000-3-3 |
💻 Programming & Features
Control Features:
- Programmable filtration cycles with customisable schedules
- Economy mode for energy-efficient operation
- Standby mode
- Temperature set point adjustment
- Smart Winter Mode (freeze protection)
- Clean-up cycle support
Temperature Control:
| Feature | Specification |
|---|---|
| Temperature Display | Fahrenheit or Celsius (configurable) |
| Set Point Adjustment | Via topside panel Up/Down keys |
| Overheat Threshold | 119°F (48°C) at heater |
| Warning Threshold | 108°F (42°C) spa water |
Diagnostic Features:
| Feature | Description |
|---|---|
| Error Code Display | Displayed on topside keypad |
| LED Indicators | Heater status, set point |
| Self-Diagnostics | Automatic system verification |
| Probe Monitoring | Continuous temperature sensor checks |
Configuration: Field programming available via compatible topside panels. The in.stik accessory enables automated software uploads for system configuration.
🔧 Installation Requirements
Pre-Installation Checklist:
- [ ] Qualified electrician engaged
- [ ] 230 V / 400 V supply available (single or dual-phase)
- [ ] RCD protection installed (30 mA maximum)
- [ ] Correct wire gauge cable available
- [ ] Minimum 68 LPM water flow rate achievable
- [ ] All spa valves fully open
Electrical Requirements:
| Requirement | Specification |
|---|---|
| Supply Voltage | 230 V single-phase or 230/400 V dual-phase |
| RCD Protection | ≤30 mA rated operating residual-current |
| Dedicated Circuit | Required |
| Wire Type | Copper only (never aluminium) |
| Strain Relief | 1″ NPT (hole diameter 34.42 mm) |
Mounting Requirements:
- Floor mount: Minimum 100 mm (4″) above potential flood level
- Wall mount: Use appropriate wall studs (2×4 or 2×6), spaced 16″ centre to centre
- Mount 4 screws with washers for secure installation
Connection Notes:
⚠️ All electrical work must comply with BS 7671 (IET Wiring Regulations).
⚠️ Spa electrical installations in the UK require Part P certification.
⚠️ For units in commercial or multi-dwelling installations, a clearly labelled emergency switch must be installed at least 1.52 m (5 ft) away, adjacent to, and within sight of the unit.
⚠️ All unused in.link connectors must be plugged with blank plugs to maintain IPx5 rating.
🔍 Troubleshooting & Error Codes
Common Error Codes:
| Code | Meaning | Possible Cause |
|---|---|---|
| Prr | Probe regulation error | Problem with regulation temperature probe |
| FLO | Flow error | Insufficient water flow, blocked filter, closed valves |
| OH | Overheat | Water temperature at heater has reached 119°F (48°C) |
| HL | High limit | Safety high-limit protection activated |
| _ _ | Flow check in progress | System performing start-up flow verification (2 min) |
General Troubleshooting Tips:
⚠️ Always disconnect power before inspecting the control box.
⚠️ Verify all valves are fully open and water flow is sufficient (minimum 68 LPM).
⚠️ Check filter cleanliness – a blocked filter can cause flow errors.
⚠️ Contact Parts4Tubs or a qualified spa technician for repairs.
🏠 Ideal Applications
| Application | Suitability | Notes |
|---|---|---|
| 🏠 Home hot tub | ✅ Excellent | Designed for residential single or dual-pump spas |
| 🏠 Garden spa | ✅ Excellent | IPx5 rating suitable for outdoor installations |
| 🏊 Swim spa | ⚠️ Check Requirements | May require IN.YE series for larger configurations |
| 🏢 Holiday let | ✅ Suitable | Self-diagnostic features aid maintenance |
| 🏢 Commercial | ⚠️ Check Requirements | May require higher-capacity Y series for heavy use |
| 🔄 Replacement/Upgrade | ✅ Excellent | Compatible with many existing configurations |
❓ Frequently Asked Questions
Q: Will this control box work with my spa? A: The Gecko IN.XE is designed for entry-level to mid-range spas requiring up to two pumps, optional blower, ozone, and 12 V lighting. Contact Parts4Tubs with your spa model details for confirmation of compatibility.
Q: Do I need a qualified electrician to install this? A: Yes. All spa control box installations must be performed by a qualified electrician in compliance with BS 7671 (IET Wiring Regulations) and Part P regulations in the UK.
Q: What topside panel does this work with? A: The IN.XE is compatible with multiple Gecko topside panels including in.k200, in.k300, in.k450, in.k500, in.k600 (static), in.k800, in.k1000, K-19, K-35, K-8, and K-4. Topside panels are sold separately.
Q: What’s the difference between IN.XE-3 and IN.XE-5? A: The IN.XE-5 includes additional outputs for Pump 2 and a Blower/Circulation Pump, making it suitable for more complex spa configurations. The IN.XE-3 is designed for simpler single-pump systems.
Q: Does this include a topside panel? A: No. The Gecko IN.XE control box is sold individually with the integrated 3.0 kW heater only. Topside panels must be purchased separately.
Q: What warranty is included? A: Please refer to manufacturer documentation or contact Parts4Tubs for current warranty terms.
Q: Can I control my spa remotely? A: Yes, with the optional in.touch WiFi interface (sold separately), you can control your spa via iOS devices.
Q: What minimum water flow is required? A: A minimum water flow of 68 LPM (18 GPM) is required for proper operation. Ensure all spa valves are fully open.
📥 Downloads & Resources
🏆 Why Choose the Gecko IN.XE
✅ Integrated Heat.wav Heater – Factory-fitted 3.0 kW heater eliminates separate heater installation
✅ in.flo Solid-State Dry-Fire Protection – No mechanical switches to fail or require adjustment
✅ in.link Plug-and-Play Connections – Colour-coded, waterproof connectors prevent miswiring
✅ IPx5 Watertight Enclosure – Laboratory-tested protection for demanding spa environments
✅ Wide Topside Compatibility – Works with 11+ Gecko keypad models for flexible upgrades
✅ TÜV European Certification – Meets stringent EN/IEC 60335 safety standards
✅ in.touch WiFi Ready – Optional wireless control for modern convenience
✅ Comprehensive Safety Suite – Dry-fire, kinetic heat, overheat, and freeze protection
🤝 Why Buy from Parts4Tubs
✅ UK-based company with local support
✅ Fast UK delivery
✅ Expert advice from spa specialists
✅ Competitive pricing
✅ Full warranty support
✅ Easy returns within 30 days
✅ Compatible components and accessories available
✅ Technical support for installation queries
✨ Summary
The Gecko IN.XE Control Box delivers reliable spa control for entry-level to mid-range applications. Featuring an integrated 3.0 kW heat.wav heater, the 230 V European model supports up to two pumps, blower, ozone, and 12 V lighting with comprehensive in.flo dry-fire protection and in.kin kinetic heat monitoring. The IPx5-rated enclosure with in.link waterproof connectors ensures safe, reliable operation. Compatible with 11+ Gecko topside panels and in.touch WiFi for smart control. TÜV certified to EN/IEC 60335 standards. Contact Parts4Tubs for compatibility advice and expert support.




