PowerWalker VFI 1000 LCD User manual

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Online UPS
PowerWalker VFI 1000 LCD
PowerWalker VFI 1500 LCD
PowerWalker VFI 2000 LCD
PowerWalker VFI 3000 LCD
Manual (EN, DE, FR, ES, RU, IT, PT, TR, AR)
Uninterruptible Power Supply System

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Table of Contents
1. Important Safety Warning ...................................................................................... 1
1-1. Transportation.................................................................................................... 1
1-2. Preparation ........................................................................................................ 1
1-3. Installation......................................................................................................... 1
1-4. Operation........................................................................................................... 1
1-5. Maintenance, service and faults........................................................................... 2
2. Installation and setup ............................................................................................. 3
2-1. Rear panel view.................................................................................................. 3
2-2. Setup the UPS.................................................................................................... 4
3. Operations ................................................................................................................ 7
3-1. Button operation ................................................................................................ 7
3-2. LCD Panel .......................................................................................................... 8
3-3. Audible Alarm..................................................................................................... 9
3-4. LCD display wordings index................................................................................. 9
3-5. UPS Setting...................................................................................................... 10
3-6. Operating Mode Description .............................................................................. 14
3-7. Faults Reference Code....................................................................................... 15
3-8. Warning indicator ............................................................................................. 15
4. Troubleshooting ..................................................................................................... 16
5. Storage and Maintenance...................................................................................... 18
6. Specifications ......................................................................................................... 19

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1. Important Safety Warning
Please comply with all warnings and operating instructions in this manual strictly. Save this
manual properly and read carefully the following instructions before installing the unit. Do not
operate this unit before reading through all safety information and operating instructions
carefully
1-1. Transportation
Please transport the UPS system only in the original package to protect against shock
and impact.
1-2. Preparation
Condensation may occur if the UPS system is moved directly from cold to warm
environment. The UPS system must be absolutely dry before being installed. Please
allow at least two hours for the UPS system to acclimate the environment.
Do not install the UPS system near water or in moist environments.
Do not install the UPS system where it would be exposed to direct sunlight or near
heater.
Do not block ventilation holes in the UPS housing.
1-3. Installation
Do not connect appliances or devices which would overload the UPS system (e.g.
laser printers) to the UPS output sockets.
Place cables in such a way that no one can step on or trip over them.
Do not connect domestic appliances such as hair dryers to UPS output sockets.
The UPS can be operated by any individuals with no previous experience.
Connect the UPS system only to an earthed shockproof outlet which must be easily
accessible and close to the UPS system.
Please use only VDE-tested, CE-marked mains cable (e.g. the mains cable of your
computer) to connect the UPS system to the building wiring outlet (shockproof
outlet).
Please use only VDE-tested, CE-marked power cables to connect the loads to the UPS
system.
When installing the equipment, it should ensure that the sum of the leakage current
of the UPS and the connected devices does not exceed 3.5mA.
1-4. Operation
Do not disconnect the mains cable on the UPS system or the building wiring outlet
(shockproof socket outlet) during operations since this would cancel the protective
earthing of the UPS system and of all connected loads.
The UPS system features its own, internal current source (batteries). The UPS output
sockets or output terminals block may be electrically live even if the UPS system is not
connected to the building wiring outlet.
In order to fully disconnect the UPS system, first press the OFF/Enter button to
disconnect the mains.
Prevent no fluids or other foreign objects from inside of the UPS system.

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1-5. Maintenance, service and faults
The UPS system operates with hazardous voltages. Repairs may be carried out only
by qualified maintenance personnel.
Caution - risk of electric shock. Even after the unit is disconnected from the mains
(building wiring outlet), components inside the UPS system are still connected to the
battery and electrically live and dangerous.
Before carrying out any kind of service and/or maintenance, disconnect the batteries
and verify that no current is present and no hazardous voltage exists in the terminals
of high capability capacitor such as BUS-capacitors.
Only persons are adequately familiar with batteries and with the required
precautionary measures may replace batteries and supervise operations.
Unauthorized persons must be kept well away from the batteries.
Caution - risk of electric shock. The battery circuit is not isolated from the input
voltage. Hazardous voltages may occur between the battery terminals and the
ground. Before touching, please verify that no voltage is present!
Batteries may cause electric shock and have a high short-circuit current. Please take
the precautionary measures specified below and any other measures necessary when
working with batteries:
－remove wristwatches, rings and other metal objects
－use only tools with insulated grips and handles.
When changing batteries, install the same number and same type of batteries.
Do not attempt to dispose of batteries by burning them. This could cause battery
explosion.
Do not open or destroy batteries. Escaping electrolyte can cause injury to the skin
and eyes. It may be toxic.
Please replace the fuse only with the same type and amperage in order to avoid fire
hazards.
Do not dismantle the UPS system.

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2. Installation and setup
NOTE: Before installation, please inspect the unit. Be sure that nothing inside the package is
damaged. Please keep the original package in a safe place for future use.
NOTE: There are two different types of online UPS: standard and long-run models. Please
refer to the following model table.
Model
Type
Model
Type
1000
Standard
1000L
Long-run
1500
1500L
2000
2000L
3000
3000L
2-1. Rear panel view
1000(L) / 1500(L) TOWER 2000(L) TOWER 3000(L) TOWER
1. Programmable outlets: connect to non-critical loads.
2. Output receptacles: connect to mission-critical loads.
3. AC input
4. Input circuit breaker
5. Network/Fax/Modem surge protection
6. Emergency power off function connector (EPO)
7. USB communication port
8. RS-232 communication port
9. SNMP intelligent slot
10.External battery connection (only available for L model)
11.Output terminal
12.Output circuit breaker

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2-2. Setup the UPS
Before installing the UPS, please read below to select proper location to install UPS.
1. UPS should be placed on the flat and clean surface. Place it in an area away from vibration,
dust, humidity, high temperature, flammable liquids, gases, corrosive and conductive
contaminants. Install the UPS indoors in a clean environment, where it is away from
window and door. Maintain minimum clearance of 100mm in the bottom of the UPS to
avoid dust and high temperature.
2. Maintain an ambient temperature range of 0ºC to 45ºC for UPS optimal operation. For
every 5ºC above 45ºC, the UPS will derate 12% of nominal capacity at full load. The
highest working temperature requirement for UPS operation is 50ºC.
3. It’s required to maintain maximum altitude of 1000m to keep UPS normal operation at full
load UPS. If it’s used in high altitude area, please reduce connected load. Altitude derating
power with connected loads for UPS normal operation is listed as below:
4. Place UPS:
It’s equipped with fan for cooling. Therefore, place the UPS in a
well-ventilated area. It’s required to maintain minimum clearance of 100mm
in the front of the UPS and 300mm in the back and two sides of the UPS for
heat dissipation and easy-maintenance.
5. Connect To Transformer
Please do NOT connect transformer to output of the UPS. Otherwise, it will cause UPS internal
fault and force UPS to enter to fault mode. Please connect transformer to input of the UPS.
6. Connect to External Battery Pack
When connecting external battery packs, please be sure to connect polarity correctly. Connect
positive pole of battery pack to positive pole of external battery connector in UPS and negative
Transformer
Transformer

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pole of battery pack to negative pole of external battery connector in UPS. Polarity
misconnection will cause UPS internal fault. It’s recommended to add one breaker between
positive pole of battery pack and positive pole of external battery connector in UPS to prevent
damage to battery packs from internal fault.
The required specification of breaker: voltage ≧1.25 x battery voltage/set; current ≧50A
Please choose battery size and connected numbers according to backup time requirement and
UPS specifications. To extend battery lifecycle, it’s recommended to use them in the
temperature range of 15ºC to 25ºC.
Step 1: External battery connection (for long-run models only)
Follow the right chart to make external
battery connection.
Step 2: UPS input connection
Plug the UPS into a two-pole, three-wire, grounded receptacle only. Avoid using extension
cords.
For 200/208/220/230/240VAC models:
The power cord is supplied in the UPS package.
For 100/110/115/120/127VAC models: The power cord is attached to the UPS. The input
plug is a NEMA 5-15P for 1000, 1000L, 1500 and 1500L models, NEMA 5-20P for 2000 and
2000L models.
Note:
For Low voltage models : Check if the site wiring fault indicator lights up in LCD panel. It
will be illuminated when the UPS is plugged into an improperly wired utility power outlet (Refer
to Troubleshooting section). Please also install a circuit breaker (40A) between the mains and
AC input in 3K model for safety operation.
Step 3: UPS output connection
For socket-type outputs, there two kinds of outputs: programmable outlets and general
outlets. Please connect non-critical devices to the programmable outlets and critical
devices to the general outlets. During power failure, you may extend the backup time to
critical devices by setting shorter backup time for non-critical devices.
For terminal-type input or outputs, please follow below steps for the wiring configuration:
a) Remove the small cover of the terminal block
b) Suggest using AWG14 or 2.1mm2power cords. Suggest using WG12-10 or
3.3mm2-5.3mm2power cords for NEMA type.
c) Upon completion of the wiring configuration, please check whether the wires are
securely affixed.
d) Put the small cover back to the rear panel.

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Step 4: Communication connection
Communication port:
USB port RS-232 port Intelligent slot
To allow for unattended UPS shutdown/start-up and status monitoring, connect the
communication cable one end to the USB/RS-232 port and the other to the communication
port of your PC. With the monitoring software installed, you can schedule UPS
shutdown/start-up and monitor UPS status through PC.
The UPS is equipped with intelligent slot perfect for either SNMP or AS400 card. When
installing either SNMP or AS400 card in the UPS, it will provide advanced communication and
monitoring options.
PS. USB port and RS-232 port can’t work at the same time.
Step 5: Network connection
Network/Fax/Phone surge port
Connect a single modem/phone/fax line into surge-protected “IN” outlet on the back panel of
the UPS unit. Connect from “OUT” outlet to the equipment with another modem/fax/phone line
cable.
Step 6: Disable and enable EPO function
Keep the pin 1 and pin 2 closed for UPS normal operation. To activate EPO function, cut the
wire between pin 1 and pin 2.
Step 7: Turn on the UPS
Press the ON/Mute button on the front panel for two seconds to power on the UPS.
Note: The battery charges fully during the first five hours of normal operation. Do not
expect full battery run capability during this initial charge period.
Step 8: Install software
For optimal computer system protection, install UPS monitoring software to fully configure UPS
shutdown. You may insert provided CD into CD-ROM to install the monitoring software. If not,
please follow steps below to download and install monitoring software from the internet:
1. Go to the website http://www.powerwalker.com/viewpower.html
2. Click ViewPower software icon and then choose your required OS to download the software.
3. Follow the on-screen instructions to install the software.
4. When your computer restarts, the monitoring software will appear as an orange plug icon
located in the system tray, near the clock.
It’s in closed status for UPS
normal operation.

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3. Operations
3-1. Button operation
Button
Function
ON/Mute Button
Turn on the UPS: Press and hold ON/Mute button for at least 2
seconds to turn on the UPS.
Mute the alarm: When the UPS is on battery mode, press and hold
this button for at least 3 seconds to disable or enable the alarm
system. But it’s not applied to the situations when warnings or errors
occur.
Up key: Press this button to display previous selection in UPS setting
mode.
Switch to UPS self-test mode: Press ON/Mute buttons simultaneously
for 3 seconds to enter UPS self-testing while in AC mode, ECO mode,
or converter mode.
OFF/Enter Button
Turn off the UPS: Press and hold this button at least 2 seconds to turn
off the UPS in battery mode. UPS will be in standby mode under
power normal or transfer to Bypass mode if the Bypass enable setting
by pressing this button.
Confirm selection key: Press this button to confirm selection in UPS
setting mode.
Select Button
Switch LCD message: Press this button to change the LCD message
for input voltage, input frequency, battery voltage, output voltage
and output frequency. It will return back to default display when
pausing for 10 seconds.
Setting mode: Press and hold this button for 3 seconds to enter UPS
setting mode when UPS is in standby mode or bypass mode.
Down key: Press this button to display next selection in UPS setting
mode.
ON/Mute + Select
Button
Switch to bypass mode: When the main power is normal, press
ON/Mute and Select buttons simultaneously for 3 seconds. Then UPS
will enter to bypass mode. This action will be ineffective when the
input voltage is out of acceptable range.
Exit setting mode or return to the upper menu: When working in
setting mode, press ON/Mute and Select buttons simultaneously for
0.2 seconds to return to the upper menu. If it’s already in top menu,
press these two buttons at the same time to exit the setting mode.

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3-2. LCD Panel
Display
Function
Backup time information
Indicates the estimated backup time.
H: hours, M: minute, S: second
Configuration and fault information
Indicates the configuration items, and the configuration items are
listed in details in section 3-5.
Indicates the warning and fault codes, and the codes are listed in
details in 3-7 and 3-8 sections.
Mute operation
Indicates that the UPS alarm is disabled.
Output information
Indicates the output voltage and output frequency.
Vac: AC voltage, Vdc: DC voltage, Hz: frequency
Load information
Indicates the load level by 0-24%, 25-49%, 50-74%, and
75-100%.
Indicates overload.
Indicates the load or the UPS output is short circuit.
Programmable outlets information
Indicates that programmable management outlets are working.
Mode operation information
Indicates the UPS connects to the mains.
Indicates the battery is working.
Indicates the bypass circuit is working.
Indicates the ECO mode is enabled.

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Indicates the Inverter circuit is working.
Indicates the output is working.
Battery information
Indicates the Battery level by 0-24%, 25-49%, 50-74%, and
75-100%.
Indicates the battery is fault.
Indicates low battery level and low battery voltage.
Input & Battery voltage information
Indicates the input voltage, input frequency and battery voltage.
Vac: AC voltage, Vdc: DC voltage, Hz: frequency
3-3. Audible Alarm
Battery Mode
Sounding every 5 seconds
Low Battery
Sounding every 2 seconds
Overload
Sounding every second
Fault
Continuously sounding
Bypass Mode
Sounding every 10 seconds
3-4. LCD display wordings index
Abbreviation
Display content
Meaning
ENA
Enable
DIS
Disable
ESC
Escape
HLS
High loss
LLS
Low loss
BAT
Battery
BAH
Battery AH
CHA
Charger current
CBV
Charger boost voltage
CFV
Charger float voltage
CF
Converter
ON
ON
EP
EPO
TP
Temperature
CH
Charger

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FU
Bypass frequency unstable
EE
EEPROM error
FA
Fan failure
BR
Battery Replace
3-5. UPS Setting
There are three parameters to set up the
UPS.
Parameter 1: It’s for program
alternatives. Refer to below table.
Parameter 2 and parameter 3 are the
setting options or values for each
program.

1: Output voltage setting
Interface
Setting
Parameter 3: Output voltage
For 200/208/220/230/240 VAC models, you may choose the
following output voltage:
200: presents output voltage is 200Vac
208: presents output voltage is 208Vac
220: presents output voltage is 220Vac
230: presents output voltage is 230Vac (Standard)
240: presents output voltage is 240Vac
For 100/110/150/120/127 VAC models, you may choose the
following output voltage:
100: presents output voltage is 100Vac
110: presents output voltage is 110Vac
115: presents output voltage is 115Vac
120: presents output voltage is 120Vac (Standard)
127: presents output voltage is 127Vac
02: Frequency Converter enable/disable
Interface
Setting
Parameter 2 & 3: Enable or disable converter mode. You
may choose the following two options:
CF ENA: converter mode enable
CF DIS: converter mode disable (Standard)
Parameter 1
Parameter 2
Parameter 3

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03: Output frequency setting
Interface
Setting
Parameter 2 & 3: Output frequency setting.
You may set the initial frequency on battery mode:
BAT 50: presents output frequency is 50Hz
BAT 60: presents output frequency is 60Hz
If converter mode is enabled, you may choose the following
output frequency:
CF 50: presents output frequency is 50Hz
CF 60: presents output frequency is 60Hz
04: ECO enable/disable
Interface
Setting
Parameter 3: Enable or disable ECO function. You may
choose the following two options:
ENA: ECO mode enable
DIS: ECO mode disable (Standard)
05: ECO voltage range setting
Interface
Setting
Parameter 2 & 3: Set the acceptable high voltage point
and low voltage point for ECO mode by pressing Down key
or Up key.
HLS: High loss voltage in ECO mode in parameter 2.
For 200/208/220/230/240 VAC models, the setting range in
parameter 3 is from +7V to +24V of the nominal voltage.
For 100/110/115/120/127 VAC models, the setting range in
parameter 3 is from +3V to +12V of the nominal voltage.
LLS: Low loss voltage in ECO mode in parameter 2.
For 200/208/220/230/240 VAC models, the setting range in
parameter 3 is from -7V to -24V of the nominal voltage.
For 100/110/115/120/127 VAC models, the setting voltage
in parameter 3 is from -3V to -12V of the nominal voltage.
06: Bypass enable/disable when UPS is off
Interface
Setting
Parameter 3: Enable or disable Bypass function. You may
choose the following two options:
ENA: Bypass enable
DIS: Bypass disable (Standard)
07: Bypass voltage range setting
Interface
Setting
Parameter 2 & 3: Set the acceptable high voltage point
and acceptable low voltage point for Bypass mode by
pressing the Down key or Up key.
HLS: Bypass high voltage point
For 200/208/220/230/240 VAC models:
230-264: setting the high voltage point in parameter 3

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from 230Vac to 264Vac. (Default: 264Vac)
For 100/110/115/120/127 VAC models:
120-132:setting the high voltage point in parameter 3
from 120Vac to 132Vac. (Default: 132Vac)
LLS: Bypass low voltage point
For 200/208/220/230/240 VAC models:
170-220: setting the low voltage point in parameter 3 from
170Vac to 220Vac. (Default: 170Vac)
For 100/110/115/120/127 VAC models:
85-115: setting the low voltage point in parameter 3 from
85Vac to 115Vac. (Default: 85Vac)
08: Bypass frequency range setting
Interface
Setting
Parameter 2 & 3: Set the acceptable high frequency point
and acceptable low frequency point for Bypass mode by
pressing the Down key or Up key.
HLS: Bypass high frequency point
For 50Hz output frequency models:
51-55Hz: setting the frequency high loss point from 51Hz to
55HZ (Default: 53.0Hz)
For 60Hz output frequency models:
61-65Hz: setting the frequency high loss point from 61Hz to
65Hz (Default: 63.0Hz)
LLS: Bypass low Frequency point
For 50Hz output frequency models:
45-49Hz: setting the frequency low loss point from 45Hz to
49HZ(Default: 47.0Hz)
For 60Hz output frequency models:
55-59Hz: setting the frequency low loss point from 55Hz to
59Hz(Default: 57.0Hz)
09: Programmable outlets enable/disable
Interface
Setting
Parameter 3: Enable or disable programmable outlets.
ENA: Programmable outlets enable
DIS: Programmable outlets disable (Standard)
10: Programmable outlets setting
Interface
Setting
Parameter 3: Set up backup time limits for
programmable outlets.
0-999: setting the backup time limits in minutes from
0-999 for programmable outlets which connect to
non-critical devices on battery mode.
(Default: 999)

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11: Autonomy limitation setting
Interface
Setting
Parameter 3: Set up backup time on battery mode for
general outlets.
0-999: setting the backup time in minutes from 0-999 for
general outlets on battery mode.
0: When setting as “0”, the backup time will be only 10
seconds.
DIS: Disable the autonomy limitation and the backup time will
depend on battery capacity. (Standard)
12: Battery total AH setting
Interface
Setting
Parameter 3: Set up the battery total AH of the UPS.
7-999: setting the battery total capacity from 7-999 in AH.
Please set the correct battery total capacity if external
battery bank is connected.
13: Charger maximum current setting
Interface
Setting
Parameter 3: Set up the charger maximum current.
1/2/4/6/8: setting the charger maximum current
1/2/4/6/8* in Ampere. (Default: 8A)
*Note: This setting is only available for super charger.
14: Charger Boost voltage setting
Interface
Setting
Parameter 3: Set up the charger boost voltage.
2.25-2.40: setting the charger boost voltage from 2.25
V/cell to 2.40V/cell. (Default: 2.36V/cell)
15: Charger Float voltage setting
Interface
Setting
Parameter 3: Set up the charger float voltage.
2.20-2.33: setting the charger float voltage from 2.20
V/cell to 2.33V/cell. (Default: 2.28V/cell)
00: Exit setting

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3-6. Operating Mode Description
Operating mode
Description
LCD display
Online mode
When the input voltage is within
acceptable range, UPS will provide pure
and stable AC power to output. The UPS
will also charge the battery at online
mode.
ECO mode
Energy saving mode:
When the input voltage is within voltage
regulation range, UPS will bypass
voltage to output for energy saving.
Frequency
Converter mode
When input frequency is within 40 Hz to
70 Hz, the UPS can be set at a constant
output frequency, 50 Hz or 60 Hz. The
UPS will still charge battery under this
mode.
Battery mode
When the input voltage is beyond the
acceptable range or power failure and
alarm is sounding every 5 seconds, UPS
will backup power from battery.
Bypass mode
When input voltage is within acceptable
range but UPS is overload, UPS will enter
bypass mode or bypass mode can be set
by front panel. Alarm is sounding every
10 second.
Standby mode
UPS is powered off and no output supply
power, but still can charge batteries.
Fault mode
When a fault has occurred, the ERROR
icon and the fault code will be displayed.

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3-7. Faults Reference Code
Fault event
Fault code
Icon
Fault event
Fault code
Icon
Bus start fail
01
x
Inverter output short
14
Bus over
02
x
Battery voltage too high
27
Bus under
03
x
Battery voltage too low
28
Inverter soft start fail
11
x
Over temperature
41
x
Inverter voltage high
12
x
Overload
43
Inverter voltage Low
13
x
Charger failure
45
x
3-8. Warning indicator
Warning
Icon (flashing)
Alarm
Low Battery
Sounding every 2 seconds
Overload
Sounding every second
Battery is not connected
Sounding every 2 seconds
Over Charge
Sounding every 2 seconds
Site wiring fault
Sounding every 2 seconds
EPO enable
Sounding every 2 seconds
Over temperature
Sounding every 2 seconds
Charger failure
Sounding every 2 seconds
Battery fault
Sounding every 2 seconds
(At this time, UPS is off to remind users
something wrong with battery)
Out of bypass voltage range
Sounding every 2 seconds
Bypass frequency unstable
Sounding every 2 seconds
EEPROM error
Sounding every 2 seconds
Fan failure
Sounding every 2 seconds
Battery replace
Sounding every 2 seconds
NOTE: “Site Wiring Fault”function can be enabled/disabled via software. Please check
software manual for the details.

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4. Troubleshooting
If the UPS system does not operate correctly, please solve the problem by using the table
below.
Symptom
Possible cause
Remedy
No indication and alarm even
though the mains is normal.
The AC input power is not
connected well.
Check if input power cord
firmly connected to the
mains.
The AC input is connected
to the UPS output.
Plug AC input power cord
to AC input correctly.
The icon and the warning
code flashing on LCD display
and alarm is sounding every 2
seconds.
EPO function is activated.
Set the circuit in closed
position to disable EPO
function.
The icon and flashing on
LCD display and alarm is sounding
every 2 seconds.
Line and neutral
conductors of UPS input
are reversed.
Rotate mains power socket
by 180° and then connect
to UPS system.
The icon and flashing
on LCD display and alarm is
sounding every 2 seconds.
The external or internal
battery is incorrectly
connected.
Check if all batteries are
connected well.
Fault code is shown as 27 and the
icon is lighting on LCD
display and alarm is continuously
sounding.
Battery voltage is too high
or the charger is fault.
Contact your dealer.
Fault code is shown as 28 and the
icon is lighting on LCD
display and alarm is continuously
sounding.
Battery voltage is too low
or the charger is fault.
Contact your dealer.
The icon and is
flashing on LCD display and alarm
is sounding every second.
UPS is overload
Remove excess loads from
UPS output.
UPS is overloaded. Devices
connected to the UPS are
fed directly by the
electrical network via the
Bypass.
Remove excess loads from
UPS output.
After repetitive overloads,
the UPS is locked in the
Bypass mode. Connected
devices are fed directly by
the mains.
Remove excess loads from
UPS output first. Then shut
down the UPS and restart
it.
Fault code is shown as 43 and The
icon is lighting on LCD
display and alarm is continuously
sounding.
The UPS shut down
automatically because of
overload at the UPS
output.
Remove excess loads from
UPS output and restart it.

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Symptom
Possible cause
Remedy
Fault code is shown as 14 and the
icon is lighting on LCD
display and alarm is continuously
sounding.
The UPS shut down
automatically because
short circuit occurs on the
UPS output.
Check output wiring and if
connected devices are in
short circuit status.
Fault code is shown as 01, 02, 03,
11, 12, 13 and 41 on LCD display
and alarm is continuously
sounding.
A UPS internal fault has
occurred. There are two
possible results:
1. The load is still supplied,
but directly from AC power
via bypass.
2. The load is no longer
supplied by power.
Contact your dealer
Battery backup time is shorter
than nominal value
Batteries are not fully
charged
Charge the batteries for at
least 5 hours and then
check capacity. If the
problem still persists,
consult your dealer.
Batteries defect
Contact your dealer to
replace the battery.
The icon and the warning
code flashing on LCD display
and alarm is sounding every 2
seconds.
Fan is locked or not
working
Check fans and notify
dealer!!
Fault code is shown as 45 on LCD
display. At the same time, alarm is
continuously sounding.
The charger does not have
output and battery voltage
is less than 10V/PC.
Contact your dealer.