Troubleshooting - Miller Syncrowave 200 Manual Del Propietário Y Guía

4-4. Troubleshooting

Trouble
No weld output; unit completely
inoperative.
No weld output; unit on.
Unit provides only maximum or
minimum weld output.
Erratic or improper weld output.
No control of weld output.
Lack of high frequency; difficulty in
starting GTAW arc.
Wandering arc − poor control of
direction of arc.
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.
.
The remedies listed below are recommendations only. If these remedies do not fix the
trouble with your unit, have a Factory Authorized Service Agent check unit.
There are no user serviceable parts inside unit.
Refer to Section 4-3 for any Help (HLP) message displayed on voltmeter/ammeter.
Place machine power switch in On position (see Section 3-1).
Place line disconnect switch in On position (see Section 2-16).
Check and replace line fuse(s), if necessary (see Section 2-16).
Check for proper input power connections (see Section 2-16).
Check, repair, or replace remote control.
Have Factory Authorized Service Agent check unit.
Make sure Amperage control is in proper position (see Section 3-1).
Have Factory Authorized Service Agent check unit.
Use proper size and type of weld cable (see Section 2-9).
Clean and tighten all weld connections.
Lay weld cables out straight, do not leave weld cables coiled.
Check position of Output Selector control (see Section Figure 3-1).
If using remote control, check position of Amperage Adjustment control (see Section 3-1).
Make sure Amperage control is in proper position (see Section 3-1).
Select proper size tungsten (see Section 7-1).
Be sure torch cable is not close to any grounded metal.
Check cables and torch for cracked insulation or bad connections. Repair or replace.
Check spark gaps (see Section 4-2).
Reduce gas flow rate (see Section 2-13).
Select proper size tungsten (see Section 7-1).
Properly prepare tungsten (see Section 7-2).
Shield weld zone from drafts.
Increase postflow time (see Section 3-8).
Check and tighten all gas fittings.
Properly prepare tungsten (see Section 7-2).
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 2-16).
Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 2-16).
Check for proper input power connections (see Section 2-16).
Be sure Output Selector switch is not set between positions (see Section 3-1).
Tighten remote control connection to Remote 14 receptacle (see Section 2-10).
Check remote control (see remote control Owner's Manual).
Unit overheated. Allow unit to cool (see Section 2-6).
Check for and remove anything blocking fan movement.
Have Factory Authorized Service Agent check fan motor.
Remedy
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