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Ryobi Homelite RY48ZTR75/100 Manual page 45

Electrical components troubleshooting and testing

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ZTR Beep Diagnostic Codes
Beep # Description
check:
angle sensor
turn key off, return both levers to open,
turn key on
1
not at neutral
return both levers to open and try
2
over current
operate again
return both levers to open and try
operate again
3
motor stall
use hand to push down the center of the
seat and try again
seat switch
4
open
fuel gauge if battery was charged above
5
under voltage
5%, if not, charge the unit
return both levers to open and try
over
7
temperature
operate again
return both levers to open and try
hall sensor
8
fault
operate again
check com connectors, unplug and plug
in again and tug on the wire to see if any
wire is loose
10
Com port
check com connectors, unplug and plug
in again and tug on the wire to see if any
wire is loose
11
com port
check charger connector, unplug and
plug in again and tug on the wires to see
13
self test
if any wire is loose [H]
return both levers to open and try
angle sensor
operate again
17
failure
return both levers to open and try
operate again
19
AD error
turn key off, return both levers to open,
turn key on
20
CPU error
< Table of Contents
if not solved...
Replace charger board
replace both drive controllers
turn key off, push unit by hand and check if it
can be easily pushed, if hard to push, chech
which side is hard to push.
check seat switch connection and wiring
integrity [D]
wait 30 minute and try again
check hall sensor connectors and unplug and
plug in again [E] [F]
replace drive controllers
turn key off, and turn key back on
turn key off, push unit by hand and check if it
can be easily pushed, if hard to push, replace
drive controllers [2]
check angle sensor connections
replace control lever assembly
replace drive controllers
if not solved...
if not solved...
replace control lever
check angle sensor connections
assembly
lift up the unit to allow rear wheels
to spin freely. Check each wheel
spining and replace the
motor/tranmission assembly on the
side that is binding
disconnect seat switch and short
circuit the male terminal(mower
side), if resolved, replace seat switch
[D]
replace drive controllers
replace drive motor/gearbox
assembly for the affected side
replace drive controllers
replace control lever assembly
45

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