3
Charger Problems
:
Closely related to battery problems are charger problems. The most likely is a blown
diode due to overheating (these can be easily replaced). As soon as a diode goes the fuse
goes. If you replace the fuse without replacing the diode the fuse will blow again – replace
both at the same time. The charger will not overheat if it has adequate ventilation. If it is
stored in a seat, the seat lid should be open or the charger should be removed from the seat
when charging.
The charger also will not charge ("0" current on charger ammeter) if there is an open
anywhere in the primary battery circuit. An open can occur at a loose or corroded wire
terminal at the batteries.
If batteries show only ¾ voltage, due to defects, age, or over-discharge, the Lester
Automatic Charger will not turn on when plugged in. Check voltage with voltmeter and if
below ¾ voltage, (example 36V for a 48V system) see Trouble Shooting Chart for correction
or call your dealer.
Key Switch
:
If moisture gets into the key switch the contacts may corrode and fail. The console
should be covered with a canvas or vinyl captain’s stand cover (pontoon boats) when not in
use. WD40 is recommended. Apply liberally to keyhole so WD40 penetrates to bottom of
switch. This is a good preventative measure and may even revive a failed switch.
Electrolysis
:
Experience has shown that if any part of an aluminum boat is grounded to any battery
terminal, electrolysis will occur on parts of the motor left underwater in areas where paint has
been chipped off (exposed metal). Electrolysis is indicated by what appears to be very rapid
corrosion of these areas. Rapid corrosion never takes place without electrolysis. Grounding
of the boat can occur when automotive type lights with one connection through the base are
installed. Even some marine running lights have one side of the circuit connected to the metal
base of the light. If the base is mounted directly on a metal part of the boat, grounding occurs.
It is important to know that the boat is not grounded when installing a Ray system. If
the offending light or other device cannot be insulated from the boat -- remove it.
If you discover electrolysis actually taking place, keep the motor out of water when
not in use and find the cause of the grounded condition and eliminate it as soon as possible. If
the boat is not grounded electrolysis will not happen, but if the boat is grounded it invariably
does.
