Webasto DVS 400 - ESD Precautions; Problem Symptoms and Actions

DVS 400 Fast Charging System Operation and Maintenance Manual
09190-W-03-01 Page 20 of 27 Webasto Charging Systems, Inc.
6.2.2 ESD Precautions
Electronic circuits are sensitive to damage from electrostatic Discharge. Persons servicing this equipment should be
trained in proper techniques for avoiding ESD damage to electronic circuits. As a minimum, when handling circuit
boards, wear an appropriate ESD wrist strap connected to the equipment chassis.
6.2.3 Problem Symptoms and Action Key
Table 6.1 Problem symptoms and Action Key
Symptom Probable cause(s) Action
No Display or LED’s
No AC to charger
Miswiring of AC input
120VAC Input Fuse Blown
D
D
C
One or more LED’s do not illuminate
during lamp test
Burnt out LED
II
Display Illegible
Noisy Environment
Bad Control Board
Corrosion on internal components
Display connector not properly seated
E
B
EE
II
Control panel not responding to input
Bad control board
Noisy Environment
Damaged membrane switch
B
E
II
Charger does not start charge when
battery connected
Output connector not completely connected
BMID is bad or reading out of range
Pilot line disconnected
Bad Control board
Loose or incorrect signal wiring
Corrosion on the signal pins
Battery over discharged
F
G
F
B
F
EE
K
Charger stops charge before complete
Battery overheat
Loss of communication line
Bad cell within pack
Algorithm/capacity mismatch
Charger overheating
Incorrect BMID configuration
H,P
F
I
J
AA
J
Charger works intermittently
Loose input or output wiring
Loose BMID connections
Low local utility voltage
Corrosion of internal components
F
F,G
DD
EE
Battery takes too long to charge
Algorithm/capacity mismatch
Bad BMID
Shorted or worn BMID wire
Loose power cable or battery interconnect
SOC mismatch within pack
Battery too hot when charge started
Battery brought in at extremely low SOC
J
G
F
Q
I
H,P
K
Pack failing to equalize
BMID misprogrammed
J
Output cables or Connector too warm
during charge
Cable undersized for length and current
Connector underrated for current
Bad crimp or connection within connector
Short in output cables
Bad cell within pack
N
N
N
F
I