The document is the user manual for Ariston microGENUS II 24 MFFI, 28 MFFI and 31 MFFI gas wall-hung boilers. It contains information about the installation, use and maintenance of the products.
This manual provides detailed instructions and recommendations for the proper installation, use, and maintenance of the Ariston microGENUS II 24 MFFI, 28 MFFI, and 31 MFFI gas wall-hung boilers. It serves as a guide for end-users and authorized service centers, ensuring the appliance is used safely and efficiently for central heating and domestic hot water production.
The system pressure should be at 1.5 bar when the system is off and cool.
Press and then release the reset button 'D' to reset the ignition system.
The fault code A 03 indicates a shutdown due to overheating.