To Next PageTo Next PageHow to troubleshoot low output at generator power receptacles on a Miller Big Blue 400P?
If your Miller Welding System has low output at the generator power AC receptacles, check the engine speed and adjust if necessary. Also, check fuse F1 and replace it if open.
Why does my Miller Big Blue 400P have no generator power or weld output?
If your Miller Welding System has no generator power or weld output, disconnect equipment from generator power receptacles during start-up. Check fuses F1 and F2, and replace if open. Reset supplementary protector CB12.
What to do if my Miller Big Blue 400P Welding System has no weld output but generator power is okay?
If your Miller Welding System has no weld output but the generator power output is okay at AC receptacles, check the position of the Ampere Range switch and the optional Polarity switch. Ensure the Amperage Adjust switch is in the Panel position, or in the Remote position with a remote control connected to receptacle RC13. Check and secure connections to Remote Amperage Adjust receptacle RC13. Also, check fuse F2 and replace it if open.
How to fix erratic weld output on a Miller Big Blue 400P Welding System?
To address erratic weld output in your Miller Welding System, start by checking and tightening all connections inside and outside the unit. Ensure the connection to the workpiece is clean and tight. Use dry, properly stored electrodes, and remove excessive coils from the weld cables.
Why won't the engine crank on my Miller Welding System?
If the engine of your Miller Welding System will not crank, check the battery and replace it if necessary. Ensure that the battery connections are secure and tight. Also, check if circuit breaker CB10 is open.
What to do if there is no weld output or generator power output on my Miller Big Blue 400P?
If your Miller Welding System has no weld output or generator power output at AC receptacles, disconnect equipment from generator power receptacles during start-up. Check fuses F1 and F2, and replace them if open. Reset supplementary protector CB12.
How to troubleshoot low weld output on a Miller Big Blue 400P Welding System?
If your Miller Welding System has low weld output, first check the engine speed and adjust it if necessary. Also, check fuses F1 and F2, and replace them if they are open.
Why does the engine on my Miller Welding System suddenly stop?
If the engine of your Miller Welding System suddenly stops, first check the oil level. The automatic shutdown system may stop the engine if the oil pressure is too low or the engine temperature is too high.
General| CC/CV | CC/CV |
|---|---|
| Open Circuit Voltage | 80V |
| Protection Class | IP23 |
| Type | Engine-Driven Welding Generator |
| Rated Output | 400A at 40V, 100% Duty Cycle |
| Welding Processes | Stick (SMAW), TIG (GTAW), MIG (GMAW), Flux-Cored (FCAW) |
