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VI)
TROUBLESHOOTING
Note: The PT-7 charger incorporates a self-contained a.c. to d.c. conversion module
which utilizes numerous automatic protection circuits. The a.c. input fuse which pro-
tects internal wiring is housed inside the charger with the module. Under most circum-
stances the fuse will fail only if the charger has an internal fault. Hence, it is not in-
tended to be user-replaceable and any condition which has caused a blown a.c. fuse will
likely require repair of other internal circuitry by a qualified technician. If an apparent
charger fault cannot be corrected using any of the recommendations in this section, the
charger should be returned to the factory or place of purchase for inspection and repair
or replacement.
PROBLEM
A. Batteries not coming up to
full charge
B. Charger continues to
charge at 3 amps or more—
does not taper back
C. No charger output, even
when all connections have
been checked, a.c. is applied
to the charger, and d.c. load
is applied to the batteries
U.S.A. HEADQUARTERS
P.O. Box 1306, Newport Beach, CA 92663
Phone: 714-751-0488 Fax: 714-957-1621
E-Mail: sales@newmarpower.com
POSSIBLE CAUSE
1. Extremely discharged
batteries requiring long re-
charge time
2. Charger limiting its output
due to overload or over-
temperature conditions
1. d.c. load connected to
batteries drawing current (not
a problem condition)
2. Bad cell in one of the
batteries to which the charger
is connected
Blown input fuse or other
internal defect
E
P
P
LECTRONIC
OWER
C
! ! ! ! !
N
OMMUNICATION
AVIGATION
www.newmarpower.com
SOLUTION
1. Turn off all d.c. loads and
allow charger 24-48 hours to
recharge batteries
2. Reduce d.c. load and/or
determine cause of over-
temperature condition (see
section III-B, Location)
1. Turn off main battery
switch to d.c. electrical panel
or turn of all d.c. loads if you
wish to confirm charger will
output minimal amperage to
fully charged batteries
2. Check for shorted cell in
wet lead-acid batteries using
a hydrometer. Refer to manu-
facturer for testing mainte-
nance-free batteries
Return to servicing dealer
for failure analysis or contact
NEWMAR for Return Authori-
zation Number
RODUCTS
Phone:+31-35-603-2494
13
EURO WAREHOUSE
Fax:+31-35-603-2149
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