TROUBLESHOOTING GUIDE
PROBLEM
POSSIBLE CAUSE
SOLUTION
Engine will not
start.
Engine switch is set to OFF.
Set engine switch to ON.
Fuel valve is turned to OFF.
Turn fuel valve to ON.
Oil is low.
Add or replace oil.
Engine is out of fuel.
Add fuel.
Engine is filled with
contaminated or old fuel.
Drain fuel in the tank. Fill with fresh fuel.
Spark plug is dirty or broken.
Clean or replace the spark plug.
Carburetor is air locked.
Shut off the fuel valve. Remove the bolt from the bottom of
the carburetor. Take off the carburetor bowl to allow it to
reset. Replace carburetor bowl and reinstall the bolt.
Engine runs but
there is no
electrical output.
Circuit breaker has been
tripped due to overload.
Turn off and unplug electrical device(s). Wait 5 minutes, then
press the circuit breaker to reset. Check the total wattage of
the devices and reduce the load if it exceeds the capacity of
the generator. Then plug the loads back in one by one.
Bad connecting cords/wires.
Check the power cords and extension cords. Do not use if
any cord is damaged. Replace damaged cords immediately.
Bad electrical device con-
nected to the generator.
Try connecting a different device.
Voltage regulator is bad
Check voltage regulator (p. 35, DF1100-033) with a multi-
meter, replace if necessary.
Carbon brushes worn or need
adjustment
Check carbon brushes (p. 35, DF475-001.1), adjust so that
both brushes extrude the same length, or replace if worn.
Generator runs but
does not support
all electrical de-
vices connected.
Generator is overloaded.
Turn off and unplug all electrical devices. Wait 5 minutes,
then press the circuit breaker to reset. Reduce load as nec-
essary, then plug devices back in one by one.
Short circuit in one of the
devices.
Try disconnecting any faulty or short-circuited electrical
loads.
Air filter is dirty.
Clean or replace the air filter element.
Engine is
“Hunting” during
Operation
(Engine RPM is
fluctuating).
1. The fuel isn’t running
through the fuel valve.
2. The air filter is clogged.
3. The muffler or spark ar-
rester is blocked
4. There is gunk in the carbu-
retor preventing a consistent
fuel/air mixture.
Turn off the generator and wait for it to cool down.
Perform the following steps:
1. Check if the fuel is properly and consistently going
through the fuel valve
2. Check for any blockage in the air filter. Check and clean
the air filter as necessary.
3. Check if the spark arrester is blocked. Clean with metal
brush as necessary.
4. Use “gunk remover” spray on the carburetor jets.
WARNING:
Stop using the generator immediately if any of the following problems occur or risk se-
rious personal injury. If you have any questions, please contact our customer service at (800) 232-1195,
M-F 8-5 CST or email us at [email protected].
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