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35827_A
TROUBLESHOOTING GUIDE
To be able to use the troubleshooting guide safely and effectively, it is important to read
this guide completely before beginning any tests.
CAUTION: REPAIRS BY QUALIFIED PERSONNEL ONLY. NOTE -- MODIFYING THIS
CHARGER FOR USE OTHER THAN THAT FOR WHICH IT WAS INTENDED, REPAIRS BY
PERSONS NOT QUALIFIED, OR NOT USING ORIGINAL EQUIPMENT REPLACEMENT
PARTS WILL VOID THE WARRANTY AND LESTER LIABILITY.
DANGER: HIGH VOLTAGE! WITH THE CHARGER ON, THE INTERNAL CHARGER
CAPACITOR VOLTAGE IS APPROXIMATELY 660 VOLTS.
CAUTION: ALWAYS UNPLUG THE AC AND DC CORDS FROM THE AC OUTLET AND
THE BATTERIES BEFORE ATTEMPTING ANY REPAIRS TO THE CHARGER.
WARNING: DO NOT OPERATE THE CHARGER IF IT IS MALFUNCTIONING.
PERSONAL INJURY OR PROPERTY DAMAGE COULD RESULT.
This battery charger is a reliable, automatic charger designed for long, trouble-free service. If
a malfunction should develop, identify the symptom and follow the associated test procedures.
SECTION MALFUNCTION
SYMPTOM
1
CHARGER DOES NOT TURN ON
1A
Relay does not close, no transformer hum, and ammeter does not register.
1B
Relay closes but no transformer hum and ammeter does not register.
1C
Relay closes and transformer hums but ammeter does not register.
2
CHARGER FUSE BLOWS
2A
Single fuse link blows.
2B
Both fuse links blow.
3
AMMETER READS 25 AMPS FOR MORE THAN 30 MINUTES
4
CHARGER OUTPUT IS LOW
5
CHARGER TURN-OFF MALFUNCTIONS
5A
Charger turns off too soon.
5B
Charger does not turn off.
5C
Charger runs too long but does turn off.
6
AC LINE FUSE OR CIRCUIT BREAKER BLOWS
