Webasto PosiCharge DVS Field Service Manual page 19

DVS/GSE
Z) Allow the unit to cool down, and verify that the AC input wiring is correct and the intake
and exhaust vents are clear of blockage. Verify that the unit is not located in direct
sunlight, which may cause overheating. Verify that ambient temperature of area in which
unit is located is between 5 deg. F and 113 deg. F(-15 deg. C and 45 deg. C). Re-start the
charge. If the unit overheats again, or any fan fails to come on, contact your authorized
DVS Service Provider.
AA) Charge was terminated before scheduled end. If not terminated by user, check Table 3.
Charge Termination Codes for possible causes.
BB) Check the AC input with a multimeter to ensure that all three phases are connected and at
the correct voltage. If input power is correct, and the problem persists, contact your
authorized DVS Fast Charging System service provider.
CC) Check the utility line voltage. If the voltage is more than 10% below the rated value,
remove other loads from circuit. If the voltage problem persists, contact your local utility
company.
DD) Exposure to excessive moisture or corrosive environments may cause intermittent faults.
Corroded parts should be replaced.
EE) Use the Charger Configuration menu to clear the 'Battery Backed RAM'. (Note:
Disconnecting the backup battery to the computer board automatically sets this fault.
When reconnected the fault must be cleared) If the fault continues the memory/clock
backup battery may need to be replaced.
Check wiring between Power Supply cabinet and PowerStation cabinet per WCSI
FF)
Document #08750-20 and correct any wiring problems. Turn unit off then restart and
listen for main contactor, K1, closing. If main contactor does not close within one
minute, remove Power Supply cabinet front panel and troubleshoot K1 per section 3.4.5.
GG) If the display is intermittent or dark, the display connector may be loose. Open the front
panel of the PowerStation cabinet and inspect the control board to display interface.
Check to make sure that all standoffs on the control board are screwed down firmly to the
front panel and are securely holding the control board at all locations. Correct any
problems found with the standoffs and cycle power to the PowerStation. If this does not
correct the problem, replace the door assembly. Burned out LED's usually indicate a
damaged membrane. Replace the door assembly.
HH) A power imbalance in 500A mode is indicated when the PowerStation is delivering
unequal current through each channel. This can result from a contactor problem, a loose
connection in the high current path of one channel, a malfunction in the current sensor, or
a malfunction on the control board.
USE EXTREME CAUTION WHEN TROUBLESHOOTING the DVS WITH
ANY PANEL REMOVED. ELECTRIC SHOCK CAN KILL: Touching live
electrical parts can cause fatal shocks or severe burns. The input power circuitry and
internal circuits are live whenever input power is on.
DANGER
II) If a VBAT MISMATCH error occurs, check the PowerStation cabinet display and
observe the voltage. If the voltage looks correct for the battery, the problem is most
likely in the high current path or the voltage sense path. Check for continuity throughout
09030-78B
GSE
Webasto Charging Systems, Inc.
19 49
of
DVS
Field Service Manual