Tru-Control App Support
Your complete guide to monitoring and controlling your Truma™ heating system
Quick Start Guide
Download Tru-Control from the App Store on your iPhone or iPad.
Select between BLE (Bluetooth) or MQTT connection in Settings.
For BLE: Enable Bluetooth → Scan for devices → Select your Truma™ system → Pair.
For MQTT: Enter broker details → Tap "Save and Connect" → Check status indicator.
Use the dashboard to control temperature, hot water, and power settings.
App Features UPDATED
Connectivity NEW
BLE (Bluetooth Low Energy) and MQTT support for flexible connection options
Scan and discover nearby Truma™ systems via Bluetooth
Switch between BLE and MQTT connections seamlessly
Monitoring & Control
Live updates of heating system temperature
Voltage monitoring with color-coded visual indicators
Switch between Gas, Electric, or Mixed heating modes
Set water temperature (ECO/60°/BOOST modes)
Advanced Features
Detailed error codes with actionable solutions
Maintains connection for real-time monitoring when app is minimized
Comprehensive connection and communication logs for troubleshooting
Save frequently used devices for quick access
User Interface
Automatic theme switching based on system settings
Clean, organized interface with quick-access controls
System Requirements
For BLE Connection NEW
- Truma™ Combi heating system with BLE interface
- Bluetooth 4.0 or later (Bluetooth LE)
- iOS device with BLE capability
For MQTT Connection
- Truma™ Combi heating system with MQTT interface
- MQTT broker (e.g., Mosquitto, HiveMQ, EMQX)
- Network connectivity
Software
- iOS 15.0 or later
- iPhone, iPad, or iPod touch
Hardware Setup
To use Tru-Control, you need to set up the required hardware that connects to your Truma™ heating system.
For detailed instructions on how to install and configure the necessary Raspberry Pi hardware:
The GitHub repository contains complete installation guides and configuration instructions.
What you'll find on GitHub:
- Step-by-step hardware installation instructions
- Raspberry Pi configuration guides
- LIN-BUS interface setup
- BLE Server and MQTT Gateway configuration
- Troubleshooting guides for common issues
Troubleshooting Common Issues
BLE Connection Problems NEW
• Ensure Bluetooth is enabled on your iOS device
• Make sure Truma™ system is powered on and in pairing mode
• Check device proximity (within 30 meters)
• Restart Bluetooth on your iOS device
• Move closer to the Truma™ system
• Check for interference from other wireless devices
• Ensure iOS device battery is not in low power mode
• Update to latest iOS version
MQTT Connection Problems
• Verify broker hostname/IP is correct
• Check port number (default: 1883 for non-TLS, 8883 for TLS)
• Ensure broker is running and accessible
• Check username/password if authentication is required
Common Error Codes
Tap any error code in the app for detailed information:
General App Issues
• Force close and restart the app
• Update to latest version from App Store
• Restart your iOS device
• Check for iOS updates
• Verify connection is active (check status indicator)
• For BLE: Check Bluetooth connection
• For MQTT: Check broker connectivity
• Review Debug Log in Settings for details
Frequently Asked Questions
General Questions UPDATED
A: BLE for direct control without internet. MQTT for remote access and integration with smart home systems.
A: All data stays on your device. We don't collect any personal information. See our Privacy Policy.
BLE Questions NEW
A: Approximately 30 meters in open space, less through walls or obstacles.
A: No, you can use only one connection method at a time, but switching is easy in Settings.
A: Bluetooth LE is designed for low energy consumption. Impact on battery is minimal.
Technical Questions
A: Yes! Enable "Use TLS" in Settings and use port 8883 (or your custom TLS port).
A: We recommend Mosquitto or EMQX. Consult your broker's documentation for setup instructions.
Need More Help?
Can't find what you're looking for? Contact us directly:
Typical response time: 24-48 hours during business days.