Miller DIVERSION 165 And, Owner'S Manual

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OM-246 522 Page 25
6-3. Meter Troubleshooting Displays For Diversion 180 Models
.
All directions are in reference to the
front of the unit. All circuitry referred to
is located inside the unit.
1 Typical meter display may be in
several segments. Each segment is
shown for two seconds, and then
scrolls to the remaining segments
of the display. The message then
repeats itself.
w [TEMP] [FAIL] [MAG]
Indicates a short or open in the thermal
protection circuitry located in the trans-
former of the unit. Contact a Factory Autho-
rized Service Agent if this display is shown.
w [TEMP] [FAIL] [SEC]
Indicates a short or open in the thermal
protection circuitry located in the secondary
of the unit. Contact a Factory Authorized
Service Agent if this display is shown.
w [TEMP] [FAIL] [PRI]
Indicates a short or open in the thermal
protection circuitry located in the primary of
the unit. Contact a Factory Authorized Ser-
vice Agent if this display is shown.
w [SEC] [CLMP] [ERR]
Secondary clamp voltage too high.
Straighten out or shorten weld cables. If this
does not correct the problem, contact a
Factory Authorized Service Agent.
w [Over][Temp]
On for two seconds then flashes:
[SEC] − Indicates the secondary of the
unit has overheated. The unit has shut
down to allow the fan to cool it (see Section
3-5). Operation will continue when the unit
has cooled.
[PRI] − Indicates the primary of the unit
has overheated. The unit has shut down to
allow the fan to cool it (see Section 3-5). Op-
eration will continue when the unit has
cooled.
[MAG] − Indicates that the transformer
has overheated. The unit has shut down to
allow the fan to cool it (see Section 3-5). Op-
eration will continue when the unit has
cooled.
w [REL][TRIG]
Indicates that the torch trigger is de-
pressed. Release trigger to continue.
w [NOT][VALD]
Indicates a non-allowable set-up on the
front panel.
1
TEMP
2 Sec
.... FAIL ....
2 Sec
MAG
Repeat
6-4. Troubleshooting
.
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.
Trouble Remedy
No weld output; unit completely
inoperative.
Place machine power switch in On position (see Section 5-1 or 5-2).
Place line disconnect switch in On position (see Section 4-6).
Check and replace line fuse(s), if necessary (see Section 4-6).
Check for proper input power connections (see Section 4-6).
No weld output; unit on. Check, repair, or replace remote control.
Have Factory Authorized Service Agent check unit.
Unit provides only maximum or
minimum weld output.
Make sure Material Thickness/amperage control is in proper position (see Section 5-1 or 5-2).
Have Factory Authorized Service Agent check unit.
Erratic or improper weld output.
Lay weld cables out straight, do not leave weld cables coiled.
Check position of Material Selector switch (see Section Figure 5-1 or 5-2).
Check position of Material Thickness/amperage control (see Section 5-1 or 5-2).
No control of weld output. Make sure Material Thickness/amperage control is in proper position (see Section 5-1 or 5-2).
Lack of high frequency; difficulty in
starting GTAW arc.
Select proper size tungsten (see Section 9-1).
Be sure torch cable is not close to any grounded metal.
Check cables and torch for cracked insulation or bad connections. Repair or replace.
Wandering arc − poor control of
direction of arc.
Reduce gas flow rate (see Section 4-3).
Select proper size tungsten (see Section 9-1).