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4-2. Troubleshooting
Trouble
Completely inoperative; fan does not run.
No weld output; fan motor FM running.
Excessive line current; line fuse(s) and/or circuit
breaker(s) open repeatedly.
Weld output available; fan does not run.
Fan runs slowly.
Limited output and low open-circuit voltage.
Erratic or improper weld output.
Erratic or improper weld output. (Continued)
No 115 volts ac output at Remote 14 receptacle RC8. Reset circuit breaker CB1, if necessary (see Section 2-10).
No 24 volts ac output at Remote 14 receptacle RC8.
OM-259 Page 18
Place line disconnect switch in the On position.
Check and replace open line fuse(s) (see Section 2-11).
Check for proper jumper link positions (see Section 2-12).
Check for proper input connections (see Section 2-12).
Reset circuit breakers CB1 and/or CB2, if necessary (see Section 2-10).
Unit overheated. Allow unit to cool with fan on (see Section 2-2).
Have Factory Authorized Service Agent check control relay CR1.
Check for proper input connections (see Section 2-12).
Check for proper jumper link positions (see Section 2-12).
Check for and remove anything blocking fan blades.
Have Factory Authorized Service Agent check fan motor FM.
Check for proper jumper link positions (see Section 2-12).
Check and replace open line fuse(s) (see Section 2-11).
Check for proper input connections (see Section 2-12).
Check for proper jumper link positions (see Section 2-12).
Check for proper jumper link positions (see Section 2-12).
Check for proper input connections (see Section 2-12).
Select correct size weld cables (see Section 2-8).
Clean and tighten weld cable connections (see Section 2-8).
Have Factory Authorized Service Agent adjust brush contact on slide wire.
For 250 ampere models, check tap slope connections (see Section 2-6).
For 200 and 300 ampere models, check inductance connections (see Section 2-7).
Install wire feeder according to it's Owner's Manual.
Reset circuit breaker CB2, if necessary (see Section 2-10).
Remedy
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