OM-2219 Page 18
Trouble
Remedy
No cutting output; Power light off;
Trouble lights off; Ready light off; fan mo-
tor FM does not run.
Place Power switch in On position.
Reset welding generator circuit breaker CB1 and/or CB2.
Check power plug connection at welding generator.
Have Factory Authorized Service Agent check power switch S1, transformer T1, fan motor, fuse F1 (see
Section 4-2), and protection board PC4. Also have Agent check for chassis to electrode short.
No cutting output; Power light on; Ready
light on; Trouble lights off; fan motor FM
running.
Be sure work clamp is connected.
Clean or replace worn consumables as necessary (see torch Owner’s Manual).
Have Factory Authorized Service Agent check safety control board PC1, power control boards PC2 and
PC3, and rectifiers SR1 and SR2.
No cutting output; Power light on; Ready
light on; Trouble lights off; fan motor FM
running slowly.
Check generator power. If Lynx is powered by a Miller Bobcat with a conversion kit installed, have Factory
Authorized Service Agent check that kit was properly installed.
Check operation of fan.
No control of output.
Have Factory Authorized Service Agent check safety control board PC1 and power control boards PC2
and PC3.
No gas/air flow; Power light on; Ready
light on; Trouble lights off; fan motor FM
running.
Have Factory Authorized Service Agent check for proper torch connections, and check safety control
board PC1. Check operation of gas valve GS1, and check gas/air system for leaks.
Pressure Trouble light On; Ready light
off.
Check for correct gas/air pressure adjustment (see Section 3-2).
Check for sufficient gas/air supply pressure (see Section 2-5).
Check for dirty air filter/regulator and clean, if needed (see manufacturer’s instructions).
Check air lines for leaks.
Have Factory Authorized Service Agent check pressure switch S3 and safety control board PC1.
Cup Trouble light On; Ready light off.
Check torch shield cup (see Section 4-4). Reset power switch.
Have Factory Authorized Service Agent check for proper torch connections, check safety control board
PC1 and check cup switch on torch.
Temperature Trouble light On; Ready
light off.
Power boards overheating. Allow fan to run; the Trouble light goes out when the unit has cooled.
Have Factory Authorized Service Agent check safety control board PC1.
Fan motor FM does not run; Power light
and Ready light both On.
Have Factory Authorized Service Agent check fan motor connections.
Check input power, and check for proper input connections (see Section 2-6).
Trouble lights not working.
Have Factory Authorized Service Agent check safety control board PC1.
GFCI trips repeatedly.
Follow testing procedure (see Section 4-2). Have Factory Authorized Service Agent replace GFCI if nec-
essary.
Circuit breaker CB1 or CB2 on engine-
driven welding generator trips repeated-
ly.
Use plasma cutter at 50% duty cycle (see Section 2-2). At higher altitudes, generator will lose power-gen-
erating capacity.
Have Factory Authorized Service Agent check GFCI, fan, transformer T1, rectifiers SR1 and SR2, and
power control boards PC2 and PC3.
Low cutting output; unable to cut thick
material.
Turn Fine Adjust control on welding generator to maximum.
