Bobcat A770 H4423 Error Code
H4423 Error Code
Auxiliary Not Programmed is the main cause of H4423 error.A significant number of consequences can be suffered due to an overheating engine with code H4423. The problem might be a blown gasket or something related to the fuel tank.
Tip For A770 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.