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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.
Propane tank is OFF.
Turn tank ON.
Regulator is stuck.
Turn OFF propane tank. Disconnect hose from onboard regulator. Spray a
small amount of penetrating oil into regulator inlet, then gently insert a pin
into inlet to break valve free.
CO levels too high.
Refer to “CO Sensor Information” on p. 25.
CO sensor disconnected, re-
moved, or faulty.
Connect or install the CO sensor. If an error is shown, contact WEN customer
service for assistance. Also refer to “CO Sensor Information” on p. 25.
Engine runs but there
is no electrical output
whatsoever.
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 dam-
aged. Replace damaged cords immediately.
Bad electrical device connected to
the generator.
Try connecting a different device.
Voltage regulator is bad
Check voltage regulator with a multimeter, replace if necessary.
Carbon brushes worn or need ad-
justment
Check carbon brushes, adjust so that both brushes extrude the same length,
or replace if worn.
Generator runs but does
not support all electrical
devices connected.
Generator is overloaded.
Turn off and unplug all electrical devices. Wait 5 minutes, then press the
circuit breaker to reset. Reduce load as necessary, 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).
Turn off the generator and wait for it to cool down. Perform the following steps:
The fuel isn’t running through the
fuel valve.
Check if the fuel is properly and consistently going through the fuel valve.
The air filter is clogged.
Check for any blockage in the air filter. Check and clean the air filter as neces-
sary.
The muffler or spark arrestor is
blocked
Check if the spark arrestor is blocked. Clean with metal brush as necessary.
There is gunk in the carburetor
preventing a consistent fuel/air
mixture.
Use “gunk remover” spray on the carburetor jets.
TROUBLESHOOTING GUIDE
WARNING!
Stop using the generator immediately if any of the following problems occur or risk serious
personal injury. If you have any questions, please contact customer service at
1-800-232-1195
(M-F 8-5 CST),
or email
.
34
Summary of Contents for DF1200X
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