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Complete Parts List is available at www.MillerWelds.com
8-9. Troubleshooting
A. Welding Troubleshooting
Trouble Remedy
Low or no weld output; generator
power output okay at AC receptacles.
Check control settings.
Check weld connections.
Have Factory Authorized Service Agent check brushes and slip rings.
No weld output or generator power
output at AC receptacles.
Be sure all equipment is disconnected from receptacles when starting unit.
Check plug PLG5 and RC4 connection.
Have Factory Authorized Service Agent check brushes and slip rings.
Low weld output. Check control settings.
Check engine speed, and adjust if necessary (see Section 8-6).
Service air cleaner according to engine manual.
Have Factory Authorized Service Agent check brushes and slip rings.
High weld output. Check control settings.
Check engine speed, and adjust if necessary (see Section 8-6).
Erratic weld output. Check control settings.
Tighten and clean connections to electrode and workpiece.
Use dry, properly-stored electrodes for Stick welding.
Remove excessive coils from weld cables.
Clean and tighten connections both inside and outside welding generator.
Check engine speed, and adjust if necessary (see Section 8-6).
Have Factory Authorized Service Agent check brushes and slip rings.
B. Generator Power Troubleshooting
Trouble Remedy
No or low generator power output at
AC receptacles; weld output okay.
Reset supplementary protector(s) (see Section 7-1).
Press optional GFCI receptacle Reset button (see Section 7-1).
Check plug RC4 connection.
Have Factory Authorized Service Agent check brushes and slip rings.
No generator power or weld output.
Be sure all equipment is disconnected from receptacles when starting unit.
Check plug RC4 connection.
Have Factory Authorized Service Agent check brushes and slip rings.
Low power output at AC receptacles.
Check engine speed, and adjust if necessary (see Section 8-6).
Have Factory Authorized Service Agent check brushes and slip rings.
High power output at AC receptacles. Check engine speed, and adjust if necessary (see Section 8-6).
Erratic power output at AC
receptacles.
Check fuel level.
Check engine speed, and adjust if necessary (see Section 8-6).
Check receptacle wiring and connections.
Have Factory Authorized Service Agent check brushes and slip rings.