Vestil EPT-30 - Manual (Page 132)

132
04/26/07 15-126-013
V ESTIL M FG . C O . 1
T ROUBLESHOOTING G UIDE -- ______
Warning: Before performing any task, always block drive wheel off of the ground.
Consult the factory for problems at time of installation, or for any problems not addressed below.
Problem: Possible cause(s): Action:
Unit doesn’t move when controls
are used.
Battery voltage low (<17)
Problem with motor controller
(check for LED flash code on
side of controller)
Fuse blown Charge batteries.
Consult diagnostics
page/factory
Remove back shroud and check
fuses (3 fuses).
Unit will not charge
Charger malfunction
Bad batteries Verify output voltage on charger,
will only get a reading when
connected to batteries; should be
approximately 28 volts.
Load test batteries
Unit will not go forward; reverse
works; belly switch just kills unit
(does not go forward and time
out)
Broken wire, or loose connection
Contactor bad, motor controller bad
Locate Pin 2 on Molex connector at
motor controller. Trace wiring to
contactor and verify connection.
When forward is depressed, there
should be 24 volts on this wire
from Molex connector to the
contactor, if not, the motor
controller may be bad; consult
diagnostics page/factory. If 24
volts is present at contactor,
verify ground connection. If
ground is good, remove both
wires and check with ohm meter;
resistance should be
approximately 38 ohms. If it’s
open or zero, the contactor
should be replaced.
Unit will not go reverse; belly
switch works (i.e. when the
handle is in operating range and
rotating throttle in reverse and
the belly switch is hit, the unit
moves forward and times out)
Broken wire, or loose connection,
contactor bad, motor controller
bad
Same as above; except locate Pin 3
on Molex connector on motor
controller…and follow procedure.