Bobcat S570 12-21 Error Code
12-21 Error Code
Auxiliary Pwm Switch Out Of Range High is the main cause of 12-21 error.A significant number of consequences can be suffered due to an overheating engine with code 12-21. 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.