NewMar PT-14W Installation And Operation Manual page 19

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
D. Reverse polarity connection
has caused charger to have no
output
E. High voltage measured across
charger output terminals
POSSIBLE CAUSE
1. Extremely discharged
batteries requiring long
recharge 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
d.c. output fuse and other
internal components likely
blown
1. Batteries not connected to
charger. It is normal to read 1/2
volt higher across any output bank
when no batteries are connected
2. Equalize function is activated
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
manufacturer for testing
maintenance‐free batteries
Return to servicing dealer for
failure analysis or contact
NEWMAR for Return Authorization
Number
Replace output fuse with like
type and value. If still no output,
return to servicing dealer for
failure analysis or contact
NEWMAR for Return
Authorization Number
1. Check for tight connection of
charging leads to batteries
2. Check to verify proper instal‐