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© 2010 Magnum Energy, Inc.
6.0 Troubleshooting
6.1 Troubleshooting Tips
6.1.1 Inverter Problems
Inverter turned on, green LED on inverter blinking, no output:
Inverter is in Search mode. Either defeat Search mode, if not needed, or turn
on loads greater than the Search Watts setting.
6.1.2 Charger Problems
Unit won’t transfer to Charge mode with AC applied:
Is charge
(CHG) LED on router blinking? If not, then the charger does not recognize
the incoming as AC being within acceptable limits. Measure the input AC
voltage at the inverter input terminals, it should be / 20 VAC
(/- 40 VAC for export models). Also, check that the
VAC Dropout
setting on the router is 80 VAC or less (export models: 160 VAC or less).
If the CHG LED is blinking, the transfer relay should be closing within 20
seconds, and the unit should begin charging. If the LED is on solid, the relay
should be closed, and the charger should begin charging.
Transfer relay closes, then opens and continues to cycle:
AC
voltage is too low, or has transients that drop the AC voltage momentarily.
Change the
VAC Dropout
setting to 60 VAC (120VAC for export models) and
check for improvements. If the cycling continues, back off the Charge Rate
from 100% to 10%.
This cycling may also be caused if the AC output of the inverter is connected
to the inverter’s AC input, check for proper input and output AC wiring.
Charger not charging even though CHG LED is on steady and
the unit says “Charging”:
Full charge rates are not obtained in Charging
mode, only after this mode changes to Bulk Charging, Absorb Charging, or
Float Charging modes.
Charger not charging even though CHG LED is on steady and the
unit says “Bulk Charging” (or “Absorb Charging”):
Check the DC amps
meter and DC voltmeter on the router display. It should be 80% or more of
rated charge current if the battery voltage is under 14.0 VDC (28.0 VDC on
24-volt models or 48.0 VDC for 48-volt models). If not, check the
03C Max
Charge Rate
setting and verify the setting is 80% or greater. Still low charge
rate? Check the
03A AC Input Amps
setting. If no AC loads are being passed
through the inverter, the
03A Input Amps
setting must be 15 amps (25 amps
for 3kW unit) or greater to receive the full charge rate.
Charger says “Float Charging” not “Bulk Charging” when the AC
is fi rst plugged in:
Check DC voltmeter on the router display. If the battery
is over 13.0 VDC (26.0 VDC for 24-volt models or 52.0 VDC for 48-volt
models) then the battery was already charged and the charger automatically
goes to Float Charging to keep from overcharging the batteries. Try the
Restart Bulk
setting from the
02 CHG Control
menu.
Charge amps are lower than expected, or is 0 amps DC:
Measure
input AC voltage and increase if the input voltage is under 90 VAC. The
charge rate is reduced to keep the input voltage above 90 VAC. Also, check
the
03A Input Amps
and the
03B Max Charge Rate
settings to determine if
the current is being limited.
Charger output voltage is different than expected:
Check the
Battery Temperature Sensor (BTS) temperature. If the BTS is installed, the
charge voltage settings will increase if the temperature around the BTS is
below 77° F (25° C) and decrease if the temperature around the BTS is
higher than 77° F (25° C).
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