Bobcat S510 47-21 Error Code
47-21 Error Code
8 Volt Sensor Supply Out Of Range High is the main cause of 47-21 error.To solve 47-21 locate and open the low-pressure valve, then attach the refrigerant to the valve and charge from there. Ensure you use the right refrigerant type and amount, as specified by a manufacturer. It is possible to overcharge the AC, so consider seeking help from a mechanic.
Tip For S510 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.