CHAPTER 6
48 ISOBUS Product Control Installation & Operation Manual
8. Water inside cover of motorized control
valve.
• Replace isolation flange assembly and coupler shaft.
• Replace entire motorized control valve if PC board or motor is
corroded and will not run.
9. Boom valve(s) will not operate. • Check cable for wires with breaks.
• Check connectors for cleanliness.
• Check BOOM switch and MASTER switch for operation.
• Replace boom valves.
10. System does not enable in ‘NH3
Applicator’ mode.
• If the control type is set to ‘NH3 Applicator’ and no proximity
switch has been installed, disable the ‘Implement Switch’ feature
on the Product Control Calibration Tab. See the Feature Settings
section on page 29 for details.
11. Boost pump pressure (AccuFlow HP
systems) does not increase or reach
target pressure.
• Refer to AccuFlow and AccuFlow HP Installation and Operation
manual for boost pump troubleshooting procedures.
• Verify that the pressure cal is calibrated correctly and the correct
target pressure is entered.
• The low limit pressure is not set correctly for operating
conditions. The low limit will shut down the system if the limit is
reached.
Problem Action
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