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Operating Instructions
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16
Lamp Off
Lamp On
Figure 8 - Diode Test Procedure
Welding Guidelines (Continued)
TESTING WELDER / GENERATOR DIODES
The following method eliminates the need to disconnect the diodes from the welder /
generators wiring.
1. Use a 12 Volt battery and automotive lamp (Type 5001) to test the diodes in the
welder / generators.
2. Connect the battery and lamp as shown in Figure 8.
3. If the diodes are operating properly, the lamp illuminates brightly when the
battery polarity is correct, and goes dim when battery polarity is reversed.
4. If there is no change in lamp brightness when polarity is reversed, the diodes must
be replaced.
For testing of rotor, stator, or field windings, consult an authorized
service center.
General
Symptom Possible Cause(s) Corrective Action
Engine will not
start
1. Engine switch is set to "OFF".
2. Fuel valve is turned to "CLOSE".
3. Choke is open.
4. Engine is out of gas.
5. Engine is filled with contaminated or
old gas
6. Spark plug is dirty.
7. Spark plug is broken.
8. Unit is not on level surface.
9. Oil is low.
1. Set engine switch to "ON".
2. Turn fuel valve to "OPEN" position.
3. Close the choke.
4. Add gas.
5. Change the gas in the engine.
6. Clean spark plug.
7. Replace spark plug.
8. Move unit to a level surface to prevent low oil shutdown from triggering.
9. Add or replace oil.
Engine runs
but there is no
electrical output
1. Circuit reset button is off.
2. Bad connecting of wires / cables.
3. Bad electrical device connected to
unit.
1. Wait for 2 minutes and push the circuit reset button to the "ON"
position.
2. If you are using an extension cord, use only heavy-duty extension
cords that are specifically designed for outdoor use. Make sure the
wattage rating for each cord exceeds the total wattage of all appliances
connected to the unit.
3. Try connecting a different device.
Unit runs but does
not support all
electrical devices
connected.
1. Unit is overloaded
2. Short in one of the connected devices.
3. Air cleaner is dirty.
1. Turn off all electrical devices. Unplug all electrical devices. Turn off unit.
Wait several minutes. Restart unit. Try connecting fewer electrical loads
to the unit.
2. Try disconnecting any faulty or short-circuited electrical loads.
3. Clean or replace air cleaner.
Troubleshooting Chart