Electric start failure (manual start normal) 1. Battery depletion; 2. Fault in the starting motor; 3. Start switch malfunction; 4. Loose wiring: 1. Check the battery voltage. If there is a loss of power, charge or replace it; 2. After connecting the power, listen for the sound of the starting motor running; 3. Test whether the startup switch is on or off; 4. Check the wiring between the starter motor and the battery. 1. Charge or replace the battery; 2. Replace the starter motor; 3. Replace the start switch; 4. Tighten the wiring
Abnormal noise during operation (knocking/whistling sound): 1. Loose spark plug; 2. Wear and tear of internal engine components; 3. Malfunction of the cooling fan; 4. Loose components (such as feet and wheels); 5. Spark suppressors are blocked. 1. Check if the spark plug is tightened; 2. Listen to the source of abnormal noise (cylinder, fan, body); 3. Check if the cooling fan is rotating normally; 4. Check if the screws and legs of the machine are loose; 5. Clean the spark suppressor. 1. Tighten the spark plug; 2. Immediately stop the machine and contact after-sales maintenance; 3. Repair or replace the cooling fan; 4. Tighten loose parts; 5. Clean the spark suppressor and replace it if it is damaged
GFCI socket frequently trips. 1. Leakage of connected equipment; 2. Cable damage; 3. GFCI socket failure: 1. Disconnect all devices and connect them one by one for testing; 2. Check if the extension cable is damaged; 3. Replace the known normal socket for testing. 1. Repair or replace the leakage device; 2. Replace damaged cables; 3. Replace GFCI socket

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