
Scrub System, Disc
102
Service Manual – Condor
™
EcoFlex
™
, BR 1100/1300 EcoFlex
™
Problem
Cause
Correction
The scrub system
will not operate
(continued)
Left brush motor contactor
coil open (error code
22
displayed)
1. Check for an open circuit in the
K4
coil and wiring
(wire colors VIO and GRA/RED)
2. Test for 36V at the
K4
coil. If you get 0 Volts,
check the A2 control board assembly.
Left brush motor contactor
coil short to ground (error
code
23
displayed)
1. Disconnect the
K4
coil wiring (wire colors VIO
and GRA/RED) and check to see if the code
disappears.
−
If the code disappears, replace the brush
contactor.
−
If the code does reappear, test the wiring for
a short back to the battery ground. Repair or
replace the defective wire.
2. If the above test doesn’t remove the code,
substitute a new A2 control board assembly.
Center brush motor
contactor coil open (error
code
24
displayed)
1. Check for an open circuit in the
K3
coil and wiring
(wire colors VIO and WHT/VIO)
2. Test for 36V at the
K3
coil. If you get 0 Volts,
check the A2 control board assembly.
Center brush motor
contactor coil short to
ground (error code
25
displayed)
1. Disconnect the
K3
coil wiring (wire colors VIO
and WHT/VIO) and check to see if the code
disappears.
−
If the code disappears, replace the brush
contactor.
−
If the code does reappear, test the wiring for
a short back to the battery ground. Repair or
replace the defective wire.
2. If the above test doesn’t remove the code,
substitute a new A2 control board assembly.
Right brush motor contactor
coil open (error code
26
displayed)
1. Check for an open circuit in the
K2
coil and wiring
(wire colors VIO and YEL/BLU)
2. Test for 36V at the
K2
coil. If you get 0 Volts,
check the A2 control board assembly.
Right brush motor contactor
coil short to ground (error
code
27
displayed)
1. Disconnect the
K2
coil wiring (wire colors VIO
and YEL/BLU) and check to see if the code
disappears.
−
If the code disappears, replace the brush
contactor.
−
If the code does reappear, test the wiring for
a short back to the battery ground. Repair or
replace the defective wire.
2. If the above test doesn’t remove the code,
substitute a new A2 control board assembly.