Bobcat 853 P21C9 Error Code
P21C9 Error Code
SCR System Main Relay Short to Battery is the main cause of P21C9 error.A significant number of consequences can be suffered due to an overheating engine with code P21C9. The problem might be a blown gasket or something related to the fuel tank.
Tip For 853 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.