COATS ProRide Wheel Balancer - Manual (Page 30)

26 • Important: Always read and follow instructions.
Troubleshooting
The machine recognizes a number of incorrect
operations and displays this as an error message. Listed
below are faults that the user can remedy if the cause
is found to be among those indicated. Any other defect
or malfunction will require the attention of a qualified
technician: Contact your nearest COATS ® service center.
ERROR CAUSE REMEDY
Black The wheel balancer does not switch
on.
1. Verify correct connection to the mains.
2. Verify and eventually replace the fuses on the power card.
3. Verify monitor function.
4. Replace the computer board.
Err. 1 No rotation signal. 1. Check in self-diagnostics that the encoder functions properly.
2. Replace the phase pick-up board.
3. Replace the computer board.
Err. 2 Speed too low during detection.
During unbalance measurement
rotation, wheel speed is less than 42
rpm.
1. Make sure a vehicle wheel is mounted properly on wheel balancer.
2. Check in self-diagnostics that the encoder functions properly.
3. Disconnect the piezo connectors from the board and do a spin (if no
error is detected, replace the piezo sensors).
4. Replace the computer board.
Err. 3 Out of balance too high. 1. Verify wheel dimension settings.
2. Check detection unit connections.
3. Perform machine calibration.
4. Mount a wheel with more or less known out of balance (less than
100 grammes) and verify the response of the machine.
5. Replace the computer board.
Err. 4 Rotation in opposite direction.
After pressing [START], the wheel
starts turning in the opposite direc-
tion (anticlockwise).
1. Check in self-diagnostics that the encoder functions properly
2. Check the bearing/spring of the phase generator
Err. 5 Guard open
The [START] pushbutton was pressed
without first closing the guard.
1. Reset the error by pressing pushbutton [7]=End.
2. Close the guard.
3. Verify the function of the protection uSwitch.
4. Press the [START] pushbutton.
Err. 7, 8 or
10 NOVRAM parameter read error 1. Repeat machine calibration
2. Shut down the machine.
3. Wait for a minimum time of ~ 1 Min.
4. Re-start the machine and verify correct operation.
5. Replace the computer board.
Err. 9 NOVRAM parameter write error. Replace the computer board.
Err. 11 Speed too high error.
During out of balance measurement
rotation, wheel speed is more than
270 rpm.
1. Check if there is any damage or dirt on the timing disc.
2. Check in self-diagnostics that the encoder functions properly.
3. Replace the computer board.
Err. 14, 15,
16, 17, 18
or 19 Out of balance measurement error. 1. Check in self-diagnostics that the encoder functions properly
2. Check detection unit connections.
3. Verify machine earth/ground connection.
4. Mount a wheel with more or less known out of balance (less than
100 grammes) and verify the response of the machine.
5. Replace the computer board.
Err. 22 Maximum number of spins possible
for the out of balance measurement
has been exceeded.
1. Check that a vehicle wheel has been mounted properly on the wheel
balancer.
2. Check in self-diagnostics that the encoder functions properly.
3. Replace the computer board.
Err. 30 Clock error Replace the computer board.
Err. 40, 41,
42 or 43 Eccentricity graph plotting procedure
error.
Perform a new eccentricity measurement.
Err. 45, 46,
47 or 48 Eccentricity graph value display read-
out error.
Perform a new eccentricity measurement.
Err. 50, 51,
52 or 53 Eccentricity graph current value cur-
sor plotting procedure error.
Perform a new eccentricity measurement.