Bobcat S175 U109A-57 Error Code
U109A-57 Error Code
Pump Controller - Invalid / Incompatible Software Component is the main cause of U109A-57 error.To solve U109A-57 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 S175 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.