Bobcat S630 W6903 Error Code
W6903 Error Code
Boom retract Switch 2 Short to Ground or open circuit is the main cause of W6903 error.A significant number of consequences can be suffered due to an overheating engine with code W6903. The problem might be a blown gasket or something related to the fuel tank.
Tip For S630 Model
When the temperature is below -30 C (-20 F), hydrostatic oil must be warmed before starting. The hydrostatic system will not get enough oil at low temperatures and will be damaged. Park the machine in an area where the temperature will be above -18 C (0 F) if possible.