Bobcat TL3870 U109A-A3 Error Code
U109A-A3 Error Code
Pump Controller - System Voltage High is the main cause of U109A-A3 error.A significant number of consequences can be suffered due to an overheating engine with code U109A-A3. The problem might be a blown gasket or something related to the fuel tank.
Tip For TL3870 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 TL3870 dealer for
service.