© Ernst Nagel GmbH 2S Trimmer Service Manual en.doc Rev.1.0. 20.07.2011
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Contents
5. Troubleshooting
(continued)
5.3 Fault Code Solutions
(continued)
STR 013
Motor5 Pulse Timeout
Procedure
STR 014
Motor5 Cycle Timeout
•
Go
to
STR 016 – Motor5 Open Circuit
.
STR 015
Motor5 Short Circuit
Procedure
Enter the Service mode and select Motor5 encoder in sensors. Slowly rotate the motor by hand and check the value on the display.
Value toggles between “0” and “1”?
Y N
Disconnect the sensor plug to Motor5 (STR-Motor5). Measure between the two wires for the sensor (5V and Signal ground).
The voltage is approximately 5VDC?
Y N
Check
wires
for
damage.
Are the wires damaged?
Y N
Go to
STR 015 Motor Short Circuit
Replace
wire
Harness
Replace
Sensor
Enter service mode and start Motor5.
The motor starts?
Y N
Go
to
STR 016 Motor 5 Open Circuit
Check for obstructions
Disconnect the wires from Motor M5. Run the diagnostics.
Fault code STR 016(Open Circuit) is displayed?
Y N
Disconnect plug 1P2 from PCB1 Check wires for Short Circuit across leads. (Orange4 & Violet11)
Is there a Short Circuit?
Y N
Replace
PCB1
Replace
wire
harness
Replace motor STR-M5