Bobcat S850 21-03 Error Code
21-03 Error Code
Glow Plug Error Off is the main cause of 21-03 error.21-03 vehicle requires its own specific maintenance regime to stay at peak efficiency, especially heavy duty construction vehicles like dump trucks. If you want to improve your return on investment and extend the life of your dump trucks, giving them the care and service they require is paramount.
Tip For S850 Model
It is recommended in cold weather to cycle the glow plugs twice before attempting to start the engine. This will allow for additional heating time for cold weather starting.