Jazzy 614 with Dynamic Electronics Technical Troubleshooting Guide www.pridemobility.com 13
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Measure Resistance
Flash Code #1 - User Fault/Stall Timeout
Symptoms:
The service indicator (amber wrench-shaped LED) flashes once, followed by a pause.
Diagnosis:
There is a Stall Timeout fault, indicating that the motors are demanding too much current from the controller for an
extended period of time. This may be caused by motors which are unable to turn freely. This fault will typically clear
itself after the stall conditions are removed.
Solution:
Use the following procedure to find the source of the fault:
1. Turn off the Dynamic joystick (1), then turn it back on and try to operate the power chair.
— If the fault occurs again,
then make sure the right and left motors (8 and 9) are not physically obstructed.
— If the motors are not physically obstructed,
then replace the Dynamic power module (2) and retest the system.
Flash Code #2 - Battery Fault
Symptoms:
The service indicator (amber wrench-shaped LED) flashes two times, followed by a pause.
Diagnosis:
The battery voltage to the Dynamic power module (2) is about 20VDC. This is most likely due to a damaged or improp-
erly charged battery.
Solution:
Please see “Left Red Battery Condition Meter LED Flashing” in section 2 of this technical troubleshooting guide.
Flash Code #3 - Left Motor Fault
Symptoms:
The service indicator (amber wrench-shaped LED) flashes
three times, followed by a pause.
Diagnosis:
There is a left motor harness open.
Solution:
Use the following procedure to clear the fault code:
1.
Remove the front shroud.
See figure 6
.
Figure 21. Connector 9a
2.
Unplug connector 9a from the connector (2e).
See diagram 2
.
3.
Measure resistance across pin 1 and pin 2 of connector 9a.
See figure 21
.
— If the multimeter does not indicate 0.5 - 1.5 ohms,
then replace the left motor (9) and retest the system.
— If the multimeter indicates about 0.5 - 1.5 ohms,
then replace the Dynamic power module (2) and retest the system.
