Miller Electric SHOPMATE 300 DX, Руководство пользователя

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OM-225 757 Page 23
5-4. Troubleshooting
Trouble Remedy
No weld output; unit completely inop-
erative; no meter displays.
Place line disconnect device in On position (see Section 3-14).
Check for open line fuse(s), and replace if open (see Section 3-14).
Check for proper input power connections (see Section 3-14).
Check for proper jumper link position (see Section 3-13).
Meter displays a HELP message. If meters display a HELP message, see Section 5-3.
No weld output; meters are on. Unit overheated. Allow unit to cool with fan On (see Section 3-2).
Check position of Mode switch (see Section NO TAG).
Check, repair, or replace remote control.
Limited weld output and low
open-circuit voltage.
Check position of V/A control ( see Sections 3-10 and NO TAG).
Check for open line fuse(s), and replace if open (see Section 3-14).
Check for proper input power connections (see Section 3-14).
Check for proper jumper link position (see Section 3-13).
Clean and tighten all weld output connections.
Unit provides only maximum or mini-
mum weld output.
Check position of V/A control ( see Sections 3-10 and NO TAG).
Have Factory Authorized Service Agent check control board PC1, front panel display board PC2, and
hall device HD1.
Erratic or improper weld output. Use proper size and type of weld cable (see Section 3-7).
Clean and tighten all weld connections.
Check wire feeder installation according to Owner’s Manual.
Check position of Mode switch (see Section NO TAG).
Have Factory Authorized Service Agent check control board PC1, front panel display board PC2, and
hall device HD1.
No 24 volts AC output at Remote 14
receptacle.
Reset supplementary protector CB1 (see Section 5-2).
Fan not operating. Note: This unit has
Fan-On-Demand, fan motor only runs
when cooling is required.
Check for and remove anything blocking fan movement.
Have Factory Authorized Service Agent check fan motor.
Wandering arc; poor control of arc di-
rection.
Reduce gas flow rate.
Select proper size tungsten.
Properly prepare tungsten.
Tungsten electrode oxidizing and not
remaining bright after conclusion of
weld.
Shield weld zone from drafts.
Check and tighten all gas fittings.
Properly prepare tungsten.
Digital meter not working properly. Have Factory Authorized Service Agent check front panel display board PC2 and connections, and
replace if necessary.