Vii) Troubleshooting - NewMar EV-40 Operation Manual

VII) Troubleshooting

Condition
A) Batteries are not coming up to full
charge.
B) Charger does not charge. No DC
"OK" light
C) Charger repeatedly blows
input fuse with no batteries
connected. AC "OK" light still on
D) Reverse polarity connection
At battery, green DC "OK" light
extinguishes.
P.O. Box 1306
Newport Beach
California 92663
Possible Cause
1) Extremely discharged batteries
requiring long recharge time.
2) Charger limiting its output due
to overload or over temperature
conditions.
3) Fan not operating properly causing
charger to protect against over-
heating.
1) Charger is not receiving AC input
voltage or is not receiving correct AC
input voltage.
2) Charger output is not properly
connected to batteries.
3) Blown output fuse.
4) Defective charger.
Internal Short.
DC Output fuse and possibly
other components blown.
www.newmarEVpower.com
Solution
1) Turn off all D.C. loads and allow
charger 24-48 hours to recharge
batteries. See section I V-B for
explanation of time-out circuit.
2) Reduce D.C. load and/or determine
cause of over temperature state
(See section III-B, "Location").
3) Return for analysis/repair by
servicing dealer where charger
was purchased or contact NEWMAR
for a Return Materials Authorization
number.
1) Using a voltmeter, confirm, AC input
voltage, check input connections.
2) Refer to DC wiring installation
diagram for proper connections to
batteries.
3) Replace with another of correct
value (see section III-D, "DC Output
Wiring").
4) Return for analysis/repair by
servicing dealer where charger was
purchased or contact NEWMAR for
a Return Materials Authorization
number.
Return for analysis/repair by servicing
dealer where charger was purchased
or contact NEWMAR for a Return
Materials Authorization number.
Disconnect AC power. Check for
proper battery polarity at charger
and at battery. After correcting mis-
wires, replace the two blown fuses
with ATC-30 or ATO-30 automotive
blade style fuses. If fuses blow again
or DC "Ok" light extinguished or
flashing, return to servicing
dealer or contact NEWMAR for
Return Materials Authorization.
Phone: 714-751-0488
Fax: 714-957-1621
E-Mail: techservice@newmarpower.com
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