Troubleshooting Table; Section 7 − Parts List; Recommended Spare Parts - Miller Deltaweld Series Owner's Manual

7-4. Troubleshooting Table

Trouble
No weld output; unit completely
inoperative.
No weld output; Power switch pilot light
on; fan on.
No weld output; Power switch pilot light
on; fan off.
Unit provides only maximum or mini-
mum weld output.
Erratic or improper weld output.
No 115 volts AC output at duplex re-
ceptacle.
No 24 volts AC output at Remote 14
receptacle.
Fan not operating. Note: fan runs only
when cooling is necessary.

8-1. Recommended Spare Parts

Dia. Part
Mkgs.
. . . . . . . . . . . . . . . . 156065
OM-223 Page 26
.
A complete Parts List is available at www.MillerWelds.com
Place line disconnect switch in On position (see Section 5-11).
Check fuse F1, and replace if necessary (see Section 7-2).
Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 5-11).
Check for proper input power connections (see Section 5-11).
Check for proper jumper link position (see Section 5-10).
If using wire feeder, place Output (Contactor) switch in Remote 14 position, and connect wire feeder
(see Sections 5-8 and 5-7). If feeder is not being used, place switch in On position (see Section 6-1).
Check, repair, or replace feeder (see wire feeder Owner's Manual).
Unit overheated. Allow unit to cool with fan On (see Section 4-4).
Have Factory Authorized Service Agent check control board PC1.
Check for proper input power connections (see Section 5-11).
Check for open line fuse(s), and replace if necessary, or reset circuit breaker (see Section 5-11).
Have Factory Authorized Service Agent check control board PC1.
Use proper size and type of weld cable (see Section 5-4).
Clean and tighten all weld connections.
Check wire feeder installation according to Owner's Manual.
Have Factory Authorized Service Agent check control board PC1 and/or SCR in main rectifier.
Reset supplementary protector CB1 (see Section 5-3).
Reset supplementary protector CB2 (see Section 5-3).
Check for and remove anything blocking fan movement.
Have Factory Authorized Service Agent check fan motor.
SECTION 8 − PARTS LIST
No.
Recommended Spare Parts
. . . . Fuse, Crtg .5 Amp 600 V Time Delay
Remedy
Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quantity
1