Voltmeter/Ammeter Help Displays | Miller Electric Big Blue 300

8-11. Voltmeter/Ammeter Help Displays

HL.P

Use the Voltmeter/Ammeter help displays to diagnose and correct fault conditions.

.When a help code is displayed

normally weld output has stopped but generator power output may be okay.

.To reset help displays, stop unit and then restart. See item 6 below to reset Help 25 dis- play.

1 Help 20 Display

Indicates a failure of meter display module PC2, or the wiring between PC2 and main control module PC1. If this display is shown, have Facto- ry Authorized Service Agent check PC1, PC2, and the wiring between PC1 and PC2.

2 Help 21 Display

Indicates thermistor TH1 on the main rectifier heat sink has failed. If this display is shown, have Facto- ry Authorized Service Agent check TH1, and the wiring between TH1 and PC1.

3 Help 22 Display

Indicates the rectifier heat sink has overheated. If this display is shown, check generator cooling system and/or reduce duty cycle. Keep en- gine access door closed when run- ning to maintain proper cooling air flow past rectifier. Allow unit to cool before restarting. If problem contin- ues, have Factory Authorized Ser- vice Agent check unit.

4 Help 23 Display

Indicates one of the rectifier output SCR’s has failed. If this display is shown, have Factory Authorized Service Agent check the rectifier SCR’s.

5 Help 24 Display

Indicates weld open circuit voltage (OCV) is too high (above 41 volts dc). If this display is shown, have Factory Authorized Service Agent check main control module PC1.

6 Help 25 Display

Indicates a remote device con- nected to Remote Receptacle RC14 may be faulty. Help 25 is also displayed whenever a remote de- vice has been connected to RC14 and then disconnected. Clear fault by stopping and restarting the unit or by turning Process/Contactor switch to another position. If prob- lem continues, have Factory Autho- rized Service Agent check the re- mote device, filter board PC6, and main control module PC1.

803 562 / 217 357-A

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Big Blue 300 specifications

The Miller Electric Big Blue 300 is a powerful and versatile engine-driven welder that has become a popular choice for professionals in various industries. Designed to excel in both welding and generator applications, the Big Blue 300 provides reliable performance, advanced technology, and exceptional durability, making it suitable for demanding work environments.

One of the standout features of the Big Blue 300 is its impressive output capabilities. With a maximum welding output of 300 amps, this machine can handle a wide range of welding applications, from stick to TIG and MIG processes. The dual voltage output allows for versatility in the field, accommodating both 120V and 240V power requirements, ensuring you can power tools and equipment directly from the welder.

The Big Blue 300 is equipped with Miller's innovative Clean Air Technology, which ensures that the engine operates efficiently and produces fewer emissions. This feature not only meets environmental standards but also enhances the longevity of the machine. The cooling system is engineered to maintain optimal operating temperatures, extending the life of the engine and related components.

For ease of use, the Big Blue 300 features an intuitive control panel with easy-to-read gauges and simple adjustment settings, allowing operators to quickly set welding parameters. The built-in Fuel Gauge and Hour Meter provide real-time information about fuel levels and usage, enabling efficient operation and maintenance planning.

Another notable characteristic of the Big Blue 300 is its rugged construction. Built to withstand harsh job site conditions, the machine features a durable frame and heavy-duty components that can endure the rigors of everyday use. The oversized wheels and solid axle design enhance portability, making it easy to transport across various terrains.

Additionally, the Big Blue 300 is designed for quiet operation, making it suitable for locations where noise levels are a concern. Its low decibel rating ensures that it won’t disturb the work environment, contributing to a more comfortable and productive atmosphere.

Overall, the Miller Electric Big Blue 300 is a robust engine-driven welder that combines power, efficiency, and portability. Whether working on construction sites, maintenance tasks, or fabrication projects, this machine delivers exceptional performance and reliability, making it a valuable tool for professionals who demand the best in their equipment.

Miller Electric Big Blue 300 Voltmeter/Ammeter Help Displays, Help 20 Display, Help 25 Display

Models: Big Blue 300