Inverter Generator TroubleshootingUpdated 3 months ago

Please work through the troubleshooting steps below to address your issue.

1. New generator is not starting

If you have just purchased your generator, fill it with petrol and wait at least 10 minutes before attempting to start it. If it fails to start, try the following:

- Ensure your tank is full.

- Remove the fuel hose while the main fuel is switched on.

- Drain the fuel hose.

- Insert the hose back into the carburettor and pull the cord approximately 10-20 times. Wait 10 minutes before starting it.

2. Used generator is not starting

If your current inverter generator is having issues starting, please work through the following:

- If your oil is running low, this will result in low compression, making it difficult to start.

- If the petrol cap is not venting correctly, the fuel tank will vapour lock, stopping the engine. Test the cap by slightly loosening it, then attempt to start the engine again. If the engine runs, the cap is not venting correctly and must be replaced.

- Drain the petrol from the tank and ensure the fuel line is free of cracks or damage. If it shows signs of wear and tear, replace it. Once installed, add fresh fuel and attempt to start the engine again. 

- The carburettor regulates the movement of air and fuel throughout the engine. If it is dirty, it can cause performance or initialisation issues.

- Ensure the ignition coil isn't defective, as this provides the spark for the spark plug. 

3. Generator is revving up and down

A generator will typically be louder until it has been run-in. Run-ins take approximately 3-4 tanks of fuel and approximately 25-35 hours. It is important to follow up the run-in stage with a service of your generator. 

4. No visible spark in the generator

This could be due to issues within different areas of the spark system. Please work through the steps below:

- Disconnect the spark plug lead and clean the area around it to prevent debris from entering the combustion chamber. 

- Remove the spark plug using a spark plug socket.

- Clean any deposits around the plug with a light wire brush (and a spray-on plug cleaner, if possible).

- Inspect the plug for any stubborn deposits, cracked porcelain or burnt electrodes. If there are any of these, replace the spark plug. 

- Ensure the spark plug gap is appropriate. The nodes should be close but not too far apart. 

- Replace all necessary parts, then attempt to start the engine. 

5. No power from the generator 

Connection issues are the most common reason a generator lacks power. Remove the wiring panel and check all the connections are tight and secure. 

6. Generator starting then stopping

If your generator is starting and stopping frequently, try the following:

- Check if the oil and fuel are the correct grade for your generator.

- Ensure servicing is carried out in accordance with the user guide. 

- Ensure all air filters are clean. 

- Ensure the fuel cap valve isn't blocked. If it is, try loosening the cap while the generator runs to allow more air to pass through.

- Consider getting the carburettor inspected by a qualified technician.

7. Generator emitting blue/white smoke

Some smoke emitted from your generator is generally normal and not a cause for concern; excessive blue or white smoke can be caused by overfilling the oil, using the incorrect oil type, or using the generator at an angle greater than 15°. 

8. Faulty electric start

Inverter generators are unlikely to start via remote or key while still warm. Let your generator cool down before attempting to start it again. Battery connection issues may also cause faulty electric starts; double-check that the connections are solid and secure.