Close the fuel cap vent (iGen1200/2200/2500) and turn it to the "ON" position
Control switch position error iGen1200: Turn to "ON"; IGen2200/2500: Cold engine to "CHOKE", hot engine to "ON"; IGen4500s: Fuel switch "ON", engine switch "AUTO RUN"
Improper adjustment of the air door: The air door of the refrigeration unit is not opened (adjusted to "CHOKE/START"), and the air door of the heating unit is not closed (adjusted to "ON/RUN")
Spark plug fault check whether the spark plug is loose, carbon deposits or improper clearance, clean, adjust or replace it
Air filter clogged, clean or replace air filter
Load not disconnected, unplug all loads and restart
2. Engine running but no output (AC/DC)
Potential causes and solutions for output types
Open all loads due to 240V AC overload or short circuit, press the reset button on iGen4500s, and restart the equipment on other models; Connect the load separately to troubleshoot the faulty equipment
The 240V AC plug is not securely plugged in or there is a cable malfunction. Re plug the plug and replace it with a known intact cable for testing
5V/12V DC load overload or short circuit disconnect the load, restart the equipment, and check if the load power exceeds the rated value
Contact authorized service dealers for internal faults of all output devices for maintenance
3. Engine shutdown during operation
Potential cause solutions
Fuel depletion or deterioration, add fresh fuel
The oil level is too low. Add oil to the standard position
Loosening spark plug cap and tightening spark plug cap
Overload or short circuit disconnect the load, restart the equipment, and check the total load power
Fuel filter clogged, clean the fuel filter
4. Unstable engine speed
Potential cause solutions
Load power fluctuation is a normal phenomenon under ECO mode and does not need to be addressed
Disconnect the load when the engine is not preheated, and run it without load for 2 minutes before reconnecting
Improper adjustment of the air door during heating, the air door is not adjusted to the "ON/RUN" position
Fuel deterioration or air filter blockage, replace fuel, clean air filter

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