Bobcat S550 D4402 Error Code
D4402 Error Code
Power Quicktach output Error On is the main cause of D4402 error.To solve D4402 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 S550 Model
There is a control lock sensor in the left
console which deactivates the hydraulic
control levers (joysticks) and the traction
drive system when the control console is
raised. The console must be in the locked
down position for the hydraulic control levers
(joysticks) and traction system to operate.
NOTE: If the control lock sensor does not deactivate
the control levers and traction system when
console is raised, see your Bobcat S550 dealer for
service.