RZT-S Zero
10
6
Stopped: Right wheel
comm fault / Restart, if
problem persists contact
service
Fault
Disables Blades and Drive
256 (or no code
if VCM timed
out and is not
able to read a
fault code from
the controller.)
Network communications
timeout
Disconnected harness
connector, damaged har-
ness, corrosion
Stopped: Left deck comm
fault / Restart, if problem
persists contact service
Fault
Disables Blades and Drive
256 (or no code
if VCM timed
out and is not
able to read a
fault code from
the controller.)
Network communications
timeout
Disconnected harness
connector, damaged har-
ness, corrosion
Stopped: Right deck
comm fault / Restart, if
problem persists contact
service
Fault
Disables Blades and Drive
256 (or no code
if VCM timed
out and is not
able to read a
fault code from
the controller.)
Network communications
timeout
Disconnected harness
connector, damaged har-
ness, corrosion
Stopped: Contactor tips
welded closed / Restart, if
problem persists contact
service
Fault
Disables Blades and Drive
VCM is still powered up,
but the RUN switch is in
the off position, and none
of the drives are producing
regen current.
VCM is being powered by
current back feeding
through welded contactor
tips.
Stopped: Self-test failure /
Restart, if problem persists
contact service
Fault
Disables Blades and Drive
Interlock1
code 64
Microelectronic hardware
failure detected in CPU of
VCM
Internal failure
Stopped: Self-test failure /
Restart, if problem persists
contact service
Fault
Disables Blades and Drive
Interlock1
code 128
RAM in safety critical
memory changed unex-
pectedly
Internal failure
Message
Message
type
Mower's action
Code
number
(engineering
screen)**
Trigger
Possible causes
Summary of Contents for RZT-S Zero
Page 2: ......
Page 42: ...RZT S Zero 38 ...
Page 112: ...RZT S Zero 108 ...
Page 154: ...NOTES ...
Page 155: ......
Page 156: ...MTD Products Inc Product Training and Education Department FORM NUMBER 769 08008 02 05 2013 ...