B
LDU ERROR CODES
en-91
Safety, Operation, & Maintenance Manual
Lithium
Right Reel Motor current over 35
Amps for 30 seconds. Shut mower
off, and remove key. Check reel for
blockage. Restart mower. If fault
returns, return mower to maintenance
shed. Excessive grass height being
mowed.
Left Reel Motor fuse blown. Return
mower to maintenance shed. Check
150 amp fuse in PDU.
Center Reel Motor fuse blown. Return
mower to maintenance shed. Check
150 amp fuse in PDU.
Right Reel Motor fuse blown. Return
mower to maintenance shed. Check
150 amp fuse in PDU.
Left Reel Motor RPM is not within the
range of the set point. Shut mower
off, and remove key. Check reel for
blockage. Restart mower. If fault
returns, return mower to maintenance
shed. Excessive grass height being
mowed.
Center Reel Motor RPM is not within
the range of the set point. Shut
mower off, and remove key. Check
reel for blockage. Restart mower. If
fault returns, return mower to mainte-
nance shed. Excessive grass height
being mowed.
Right Reel Motor RPM is not within
the range of the set point. Shut
mower off, and remove key. Check
reel for blockage. Restart mower. If
fault returns, return mower to mainte-
nance shed. Excessive grass height
being mowed.
Left Actuator Overcurrent. Shut
mower off, and remove key. Check
grass catcher for excessive weight.
Restart mower. If fault returns, return
mower to maintenance shed.
l If fault returns after shutting down and restarting mower, mowing can continue with other reels
if reel enable switch for indicated reel is turned OFF.
LDU Error Message Error Description
Caution
LED
Alarm
Sound-
ing
Engine
Stop
Traction
Stop
Mow Stop
On Off Yes No Yes No Yes No Yes No
LEFT REEL
VOLTS LOW
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