If the central heating system becomes over pressurised when refilling or otherwise, the Luthmore App may display a 204 fault code. The pressure can be reduced by draining the system. We've created a simple guide to help resolve this.
Step by Step Guide:
1. Insert the ‘Valve Tool’ (or T30 Torx screwdriver) into Port 3 and turn anticlockwise for 3 full revolutions
2. Insert the ‘Valve Tool’ into Port 4 and turn anticlockwise for 3 full revolutions
Image: Open Port 3 and Port 4
Pressure in the system will start to reduce and water will leave the boiler via the discharge outlet
3. Wait until pressure falls between 1.0 and 1.3 bar. You can check the pressure in the Luthmore App. Navigate to App > Setup > Boiler Settings
4. Turn the ‘Valve Tool’ in Port 4 clockwise until finger tight
5. Insert the ‘Valve Tool’ into Port 3 and turn clockwise until finger tight
6. Visually check for any leaks
Test the central heating system, this should clear the fault from app. If the issue persists, repeat the above process checking the pressure is showing within range.
If this does not resolve the issue, please contact Customer Support on 01249 596588 or email help@luthmore.com