Milwaukee 4970-24 - Manual (Page 22)

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Problem cause correction
Engine is running, but no Ac
output is available.
1. GFCI circuit breaker is open.
2. Fault in generator.
3. Poor connection or defective cord set.
4. Connected device is bad. 1. Reset circuit breaker.
2. Contact authorized service facility.
3. Check and repair.
4. Connect another device that is in good
condition.
Engine runs good at no-load
but “bogs down” when loads
are connected.
1. Short circuit in a connected load.
2. Engine speed is too slow.
3. Generator is overloaded.
4. Shorted generator circuit.
5. Clogged or dirty fuel filter. 1. Disconnect shorted electrical load.
2. Contact authorized service facility.
3. See Don’t Overload Generator.
4. Contact authorized service facility.
5. Clean or replace fuel filter.
Engine will not start; or starts
and runs rough.
1. Engine switch set to “Off” position.
2. Fuel valve is in “Off” position.
3. Low oil level.
4. Dirty air cleaner.
5. Clogged or dirty fuel filter.
6. Out of fuel.
7. Stale fuel.
8. Spark plug wire not connected to spark
plug.
9. Bad spark plug.
10. Water in fuel.
11. Flooded.
12. Excessively rich fuel mixture.
13. Intake valve stuck open or closed.
14. Engine has lost compression.
1. Set switch to “On” position.
2. Turn fuel valve to “On” position.
3. Fill crankcase to proper level or place
generator on level surface.
4. Clean or replace air cleaner.
5. Clean or replace fuel filter.
6. Fill fuel tank.
7. Drain fuel tank and carburetor; fill with
fresh fuel.
8. Connect wire to spark plug.
9. Replace spark plug.
10. Drain fuel tank and carburetor; fill with
fresh fuel.
11. Wait 5 minutes and re-crank engine.
12. Contact authorized service facility.
13. Contact authorized service facility.
14. Contact authorized service facility.
Engine shuts down when
running.
1. Out of fuel.
2. Clogged or dirty fuel filter.
3. Low oil level. 1. Fill fuel tank.
2. Clean or replace fuel filter.
3. Fill crankcase to proper level or place
generator on level surface.
Engine lacks power. 1. Load is too high.
2. Dirty air filter.
3. Clogged or dirty fuel filter. 1. See Don’t Overload Generator.
2. Replace air filter.
3. Clean or replace fuel filter.
Engine “hunts” or falters. 1. Carburetor is running too rich or too
lean.
2. Clogged or dirty fuel filter.
1. Contact authorized service facility.
2. Clean or replace fuel filter.
Troubleshooting