Miller INFINITY 35, Owner'S Manual

Page: 19 / 28

OM-206 360 Page 15
SECTION 4 − MAINTENANCE AND TROUBLESHOOTING
4-1. Routine Maintenance
Y Disconnect power before maintaining.
3 Months
Replace
unreadable
labels.
Clean and
tighten weld
terminals.
Repair or
replace
cracked weld
cable.
6 Months
Blow out or vacuum inside.
During heavy service, clean monthly.
OR
4-2. Troubleshooting
Trouble Remedy
No weld output; unit completely
inoperative
Place line disconnect device in On position.
inoperative.
Check for open line fuse(s), and replace if open.
Check for proper input power connections.
Check for proper jumper link position.
No weld output; pilot light PL1 on. Unit overheated. Allow unit to cool with fan On (see Section 2-4).
Check, repair, or replace remote control.
Check for open line fuse(s), and replace if open.
Limited weld output and low
open circuit voltage
Check for proper input power connections.
open-circuit voltage.
Check for proper jumper link position.
Clean and tighten all weld output connections.
Unit provides only maximum or
minimum weld output.
Have Factory Authorized Service Agent check control board PC1 and hall device HD1.
Erratic or improper weld output. Use proper size and type of weld cable (see Section 2-6).
Clean and tighten all weld connections.
Check wire feeder installation according to Owner’s Manual.
Check position of Process selector switch (see Section 3-8).
Have Factory Authorized Service Agent check control board PC1 and hall device HD1.
No 115 volts ac output at duplex recep-
tacle, Remote 14 receptacle.
Reset circuit breaker CB1.
No 24 volts ac output at Remote 14 re-
ceptacle.
Reset circuit breaker CB1.
Fan not operating. Note: fan only runs
when cooling is necessary
Check for and remove anything blocking fan movement.
when cooling is necessary.
Have Factory Authorized Service Agent check fan motor.
Wandering arc; poor control of arc
direction.
Reduce gas flow rate.
Digital meter not working properly. Have Factory Authorized Service Agent check control board PC1 and connections, and replace if
necessary.