10．Failure Catalog
NO.
1
2
1
2
3
4
5
6
Charging Indication
Red light flickers
Green light keeps on
Charger Fault Indication
Red Green Red---
Red Green---
Red Green Red Green---
Green Red---
Red Green Red Green Red---
Green Red Green---
Description
Charging
Full
Description
Overvoltage(overcurrent) protection
Output under-voltage
Over-high/low temperature
High temperature protection
Abnormal input AC voltage
Composite fault
Charger Indicator Catalog (T0)
NO.
1
2
3
4
5
6
7
8
9
10
11
Trouble shooting
CAUSE
E-lock switch is “OFF”
Handle out of drive range F
Control loop fuse is burnt
Fault of the controller
Low power
Emergency stop switch is off
Main fuse is burnt
Battery runs out
SOLUTION
Turn the E-lock switch to “ON”(T3)
Replace the control circuit fuse(T8)
Recharge（T1）
Replace the main fuse (T12)
Truck
fails to
move
Battery meter
displays
Battery meter
no display
PROBLEM
NOTICE:
1. The main power switch is the emergency stop switch (T2). The battery meter and fan start to work
if the emergency stop switch is on. For the purpose of equipment safety and energy conservation,
please turn off the power if not using the truck for a long time.
2. Press (OFF) the emergency stop switch (T2), otherwise, it will damage the electric elements.
3. Correct operating procedure: ①Pull the emergency stop switch(ON); ②turn on the key switch
(electric lock);③press the handle to the working position (photoelectric switch lights on); ④rotate
the handle accelerator. The correct operating procedure is the recondition to ensure the safety of
personnel. If the procedure is incorrect, the truck will not move (the Fault LED flickers T10, refer to
the fault code list on page 19)! Re-operate according to the correct procedure.
4. When the electric lock switch is on and without any operation, the controller will go into sleeping
mode for power-saving, and the truck cannot move. Restart the electric lock switch. Suggestion:
Turn off the electric lock switch and emergency stop buttonif not used for a long time.
5. When the battery goes below 30% (the meter shows 3 bars), the controller will shut down the lifting
function for protection, and the moving speed will also slow down into half. If this happens, please
recharge immediately, otherwise it will shorten the life span of battery!
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Lift the goods slowly
Forks descend slowly
Move slowly
Sudden start
Forks fail to descend
Unidirectional move
Motor contactor
closed (press the
LIFT button and
the contactor
closes)
Motor contactor
not closed
-13- -14-
Press the handle to the working
position and photoelectric switch is out
Loose connection of battery
connecting wire
Handle not pressed to the working
position
Rotate the accelerator to the drive range
F（T6）
Press the handle to the working position
(photoelectric switch is on T16) and rotate the
accelerator (T6)
Adjust the distance of photoelectric switch to
see if it lights on. If not, replace the
switch(T16).
Refer to the controller fault code list on
page 19
Check the connecting wire. If necessary,
reconnect the line and tighten the terminal
screws (T13)
Pull up to turn on the emergency stop
switch（T2）
Check the battery charging condition.
Recharge if necessary (T1)
Fail
to
lift
the
goods
Air in the hydraulic system
(motor is running)
Inadequate hydraulic oil
(Motor is running)
The pipe connection is loose
or cracks (motor is running)
Motor connecting wire is loose
(motor is not running)
Pump motor is damaged
(motor is not running)
If the battery meter has no
display, refer to CAUSE 8/9/10/11
If the battery meter has display,
refer to CAUSE 1/5/7
Poor contact/damage on the Lifting
button of handle
Poor contact/damage on the lifting
travel switch
Poor contact/damage on connecting
wire
Poor contact/damage on the motor
contactor
Refer to CAUSE 12/13
Dirty oil and the control valve is
blocked
Poor contact/damage on the
descending button of handle
Unopened/damage magnetic valve
of handle
Poor contact/damage on the
connecting wire
Refer to CAUSE 24
Damage on the handle accelerator
Poor contact/damage on the
connecting wire
Low battery
Tight brake
Damage on brake coil/brake is
unloosed due to poor contact of the
brake wire
Fault/damage on controller
The handle accelerator is not reset
Idling several times to eliminate air. (T14, T7)
Replace the pump motor (T14)
Refer to SOLUTION 8/9/10/11
Refer to SOLUTION 1/5/7
Check/replace the lifting button(T7)
Check/replace the lifting travel switch (T5)
Check/replace the connecting wire (T14, T15)
Check/replace the motor contactor (T15)
Refer to SOLUTION 12/13
Check/replace the descending button (T7)
Check/replace the magnetic valve(T18)
Check/replace the connecting wire
Refer to SOLUTION 24
Check/replace accelerator
Check/replace connecting wire (T7, T9)
Check the battery and recharge immediately (T1)
Check adjusting screw (T11)
Check/replace the brake, wire and connection (T11)
Replace the controller (T9)
Fix to reset or replace (T6)
Check the oil level and see if any leakage.
Fix the problem.(T4, T19)
Tighten the pipe connection or replace the cracked
pipe (T4, T19)
Tighten the connecting wire. Replace the motor
wire if necessary. (T14)
Check the hydraulic oil and clean the control valve.
Replace the oil if necessary (T18, T19)
