Troubleshooting
Note:
If the console computer malfunctions or needs repair, you can resume spraying in manual mode by unplugging
the cables form the rear of the console computer. You can then control the system using the center console controls.
Problem
Possible Cause
Corrective Action
1. The fuse on the back of the console
computer is blown.
1. Replace the fuse.
2. The battery connections are loose.
2. Secure the battery connections.
3. The power switch is not operating
properly.
3. Repair or replace the power switch.
No display lights with the power on
4. There is a problem with the processor
board assembly.
4. Have an Authorized Distributor replace
the processor board assembly.
All keyboard lights are on at the same time
1. There is a problem with the face plate
sub assembly.
1. Have an Authorized Distributor replace
the face plate sub assembly.
You cannot enter a digit using the keyboard
1. There is a problem with the face plate
sub assembly.
1. Have an Authorized Distributor replace
the face plate sub assembly.
An indicator on a key does not illuminate
1. There is a problem with the face plate
sub assembly.
1. Have an Authorized Distributor replace
the face plate sub assembly.
1. The battery connections are loose.
1. Secure the battery connections.
The console computer displays a flashing
Cal whenever you start the engine
2. The battery is not providing sufficient
voltage.
2. Check the battery voltage.
1. The battery connections are loose.
1. Secure the battery connections.
The console computer displays a flashing
Cal whenever you turn the master switch
to the On or Off position
2. The battery is not providing sufficient
voltage.
2. Check the battery voltage.
1. The battery connections are loose.
1. Secure the battery connections.
The console computer displays a flashing
Cal whenever you change the speed
2. The battery is not providing sufficient
voltage.
2. Check the battery voltage.
One display digit has one or more missing
segments
1. There is a problem with the LCD
display board assembly.
1. Have an Authorized Distributor replace
the LCD display board assembly.
1. The pins on the speed sensor cable
connector and the plug on the back of
the console computer are loose.
1. Have an Authorized Distributor repair
or replace the connector or the plug on
the back of the console computer.
2. The pins and the sockets on the speed
sensor cable are dirty.
2. Clean the pins and sockets on the
speed sensor cable connectors.
The speed display reads 0
3. There is a problem with the speed
sensor switch assembly.
3. Have an Authorized Distributor replace
the speed sensor switch assembly.
1. The wheel drive setting is not set to
SP3.
1. Set the wheel drive setting to SP3.
The speed is inaccurate or unstable
2. The Speed Cal number is incorrect.
2. Enter the correct Speed Cal number.
1. The Speed Cal is zero.
1. Enter the correct Speed Cal number.
2. The wheel drive setting is not set to
SP3.
2. Set the wheel drive setting to SP3.
The rate reads 0000
3. The Total Volume is not registering the
flow.
3. Ensure that the flowmeter is pointing
in the direction of flow and is operating
properly.
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