Controller displays E20 and the generator will not start; often accompanied by a service reminder.

Safety first: Turn OFF the generator and disconnect the battery before performing maintenance.

• Perform scheduled maintenance: Change engine oil and oil filter, replace or clean the air filter, inspect and replace spark plugs (for gasoline/NG/LP models), and check fuel filter as per the A-iPower maintenance schedule.
• Inspect belts and hoses: On liquid-cooled models, check coolant hoses and drive belts for wear or cracking.
• Reset maintenance timer: Follow the A-iPower controller manual to reset the service interval (often via a menu option like "Service Reset" or holding a specific button sequence).
• Record service: Log the date and run hours for future reference.