![](/images/new-backgrounds/1283738/28373867x1.webp)
8-4. Troubleshooting Help Aids
1 Stud Count LED
2 Ready LED
3 Output LED
1
2
3
|
|
| 803 | |
|
|
|
| |
|
|
|
| |
Front Panel | Ready LED Status | Possible Symptom | Remedy | |
Error Indication | ||||
|
|
| ||
|
|
|
| |
Normal/None | On | No problem | N/A | |
|
|
|
| |
HELP 1 | Off | Malfunction in the primary power cir- | Contact a factory authorized service | |
|
| cuit. | agent. | |
|
|
|
| |
HELP 2 | Off | Malfunction in the thermal protections | Contact a factory authorized service | |
|
| circuitry. | agent. | |
|
|
|
| |
HELP 3 | Off | Unit has overheated. | Unit has shut down to allow the fan to | |
|
|
| cool it (See Section | |
|
|
| will continue when the unit has cooled. | |
|
|
|
| |
HELP 4 | Off | Trigger circuit is closed when unit was | Open trigger circuit and cycle power. | |
|
| powered on. |
| |
|
|
|
| |
HELP 5 | Off | The unit has sustained an Open Circuit | Cycle power. Apply a welding load. If | |
|
| Voltage for more than 10 seconds. | problem persists, contact a factory au- | |
|
|
| thorized service agent. | |
|
|
|
| |
HELP 6 | Off | Input voltage is either under/low volt- | Unit has automatically shut down. Op- | |
|
| age or high/over voltage. | eration will continue when input voltage | |
|
|
| is within an acceptable limit. Have an | |
|
|
| electrician check the input voltage. | |
|
| DC bus voltage imbalance. | If input voltage is correct, contact au- | |
|
|
| thorized factory service agent. | |
|
|
|
|
8-5. Troubleshooting - Power Source
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Trouble |
| Remedy | |
|
|
|
|
|
No weld output; unit completely inop- | Place line disconnect switch in On position (see Section | |||
erative. |
|
| ||
|
|
|
|
|
|
|
| Check and replace line fuse, if necessary, or reset circuit breaker (see Section | |
|
|
|
|
|
|
|
| Check for proper input power connections (see Section | |
|
|
|
|
|
No weld output. | Input voltage outside acceptable range of variation (see Section | |||
|
|
|
|
|
|
|
| Unit overheated. Allow unit to cool with fan On (see Section | |
|
|
|
|
|
Erratic or improper weld output. | Use proper size and type of weld cable (see Section | |||
|
|
|
|
|
|
|
| Clean and tighten all weld connections. | |
|
|
|
|
|
|
|
|