Bobcat 773 M8021 Error Code
M8021 Error Code
Cooling Fan Out Of Range High is the main cause of M8021 error.A significant number of consequences can be suffered due to an overheating engine with code M8021. The problem might be a blown gasket or something related to the fuel tank.
Tip For 773 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.