Miller DIVERSION 165 Owner's Manual page 28

Trouble
Tungsten electrode oxidizing and not
remaining bright after conclusion of
weld.
Fan not operating.
No weld output; fan does not run.
No weld output; fan on.
Fan not operating; weld output
available.
Power LED flashes (Diversion 165
Models).
Output On LED flashes (Diversion 165
Models).
OM-263920 Page 24
.
A complete Parts List is available at www.MillerWelds.com
Shield weld zone from drafts.
Check and tighten all gas fittings.
Properly prepare tungsten (see Section 10-2).
Unit equipped with Fan-On-Demandt. Fans run only when necessary. Unit equipped with circuitry to
protect against overheating.
Place line disconnect switch in On position (see Section 5-7).
Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 5-7).
Check for proper input power connections (see Section 5-7).
For Diversion 165 models, be sure Material Selector switch is set in position (see Section 6-1).
Check connection to remote control receptacle (see Section 5-3).
Check remote control (see remote control Owner's Manual).
Unit overheated. Allow unit to cool (see Section 4-6).
Check for and remove anything blocking fan movement.
Have Factory Authorized Service Agent check fan motor.
Input voltage out of usual range of 230 volts ±10%.
Unit has overheated. Do not use until LED stops flashing (see Sections 4-6 and 6-1 or 6-2).
Remedy