Vestil S-xxx-FF - Manual (Page 24)

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Troubleshooting:
If the unit does not operate, check all of the wiring connections to make sure they’re both
mechanically and electrically sound – specifically at the battery, and the motor.
A fully-charged lead acid battery in good condition at room temperature should read 12.65
volts. At 11.9 volts it is considered to be fully discharged and in need of charging. When
checking battery voltage, wait at least 1\2 hour after the charger has been turned off before
checking the battery’s voltage.
If the batteries aren’t being charged by the charger, check the output
charger fuse. Verify fuse is good with an ohmmeter, or close visual
(ohm meter best). Fuse is a 10Amp 250 Volt; GBD 10A. If it is
good, check the battery’s state of charge with a voltmeter. The
charger must be connected to the battery in order to read the output
voltage of the battery charger. Depending on the state of charge of
the batteries, the voltage should be somewhere around 27 to 28 volts
dc.
If it is determined the batteries are dead, and need replaced, change the
batteries.
Tools Required:
14mm wrench, or crescent wrench
Regular flat bladed screw driver