Bobcat S570 H4821 Error Code
H4821 Error Code
5V Sensor Supply Out of Range High is the main cause of H4821 error.A significant number of consequences can be suffered due to an overheating engine with code H4821. The problem might be a blown gasket or something related to the fuel tank.
Tip For S570 Model
If the engine stops, the boom / bucket
(attachments) can be lowered to the ground
using hydraulic pressure in the accumulator.
The control console must be in the locked
down position, and the key switch in the ON
position.
Use the control lever to lower the boom.