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35827_A
1.
CHARGER DOES NOT TURN ON
In normal operation, the charger DC output plug must be connected to the batteries and the
AC input cord must be connected to a live power source in order to turn the charger on. A time
delay of three to five (3-5) seconds is provided to allow adequate time to make a secure
connection before the charger turns on. After this time delay, the power relay closes and an
audible "click" should be heard. When the relay closes, AC power is supplied to the
transformer primary coil. If operating properly, the transformer should hum and the ammeter
should indicate the charge rate. If the charger does not turn on properly, refer to SECTION
1A, 1B, or 1C.
1A.
Relay does not close, no transformer hum, and ammeter does not register
Start by checking to be sure the charger’s AC input cord is connected to a live outlet.
Disconnect the AC input cord from the outlet and either plug another device into the power
outlet to verify its operation or measure the voltage at the outlet. If there is no voltage, check
the circuit breaker or fuse for that outlet.
Also check the DC output plug and inspect the battery receptacle for damage, dirt or corrosion
that would prevent a good electrical connection.
WARNING: IF THE PLUG OR RECEPTACLE IS BROKEN, TWISTED, BENT OR
LOOSE AND DOES NOT MAKE GOOD ELECTRICAL CONTACT, HAVE IT REPLACED BY
A QUALIFIED SERVICE AGENT IMMEDIATELY. DO NOT USE THE CHARGER IN THIS
CONDITION AS FIRE OR PERSONAL INJURY CAN RESULT.
Disconnect the AC input cord from its outlet and the DC output plug from its receptacle.
Measure the DC voltage at the battery and at the battery receptacle using a suitable multi-
meter. The voltage reading should be the same and must be a minimum of 5 volts for the
charger to turn on. If there is no voltage reading at the receptacle, then a problem exists in the
wiring harness between the battery and the receptacle. Other things that could possibly
prevent the charger from starting:
•
Defective AC input or DC output cord on the charger
•
Loose wiring connection in the charging circuit
•
Defective electronic charge controller
•
Transformer
problem
Refer to the Component Test Procedures in the next section to check each of these potential
issues.
1B.
Relay closes, but no transformer hum, and ammeter does not register
If the relay is closing, then the electronic charge controller is sensing both AC and DC voltages
indicating that the AC input and DC output cords are wired properly. Things that could
possibly prevent the charger from starting:
•
Loose wiring connection in the charger
•
Transformer
problem
Refer to the Component Test Procedures in the next section to check each of these potential
issues.
