Zokop JK-B-50D User manual

User Manual
Car Refrigerator
Please read the user manual carefully before use
Model:JK-B-50D
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Important Safety Information
Improper handling can cause serious damage to the unit. Portable car refrigerator injury to the user. This car
refrigerator is designed for domestic indoor use only. Do not use the unit for industrial or commercial use. Any
other use may invalidate the warranty. Please review the ratings label located on the rear panel of the unit for
electrical and other technical data related to this unit. The unit must be used in a properly grounded wall outlet.
Please read and follow the safety information listed below to reduce the risk of fire, electric shock or injury.
Electrical Safety
Do not exceed the power outlet ratings.
Use outlets that cannot be turned off by a switch or pull chain.
Never pull the power cord to disconnect it from the outlet.
Grasp the plug directly and pull it from the outlet.
Never lift or carry the freezer by the power cord.
Keep the power cord away from heated surfaces.
Always turn the unit off and unplug it from the outlet when
cleaning.
Do not operate the unit with a power plug missing the ground
plug, a damaged cord or a loose socket.
Be sure the portable freezer is properly grounded.
Never handle/operate the unit with wet hands or standing on a
wet surface.
Keep protected from rain, sleet, snow, and/or moisture.
Do not bypass, cut or remove the grounding plug.
Do not use extension cords or power strips with this unit, plug
directly into outlet.
Do not modify the power cord’s length or share the outlet with
other appliances.
Do not start or stop the unit by switching the circuit’s power on
and off. If the power cord is damaged, it must be replaced by
the manufacturer or a qualified technician.
Immediately unplug the unit if it makes strange sounds, emits
smells or smoke comes out of it, and contact customer service.
Do not remove any part of the casing unless instructed by an
authorized technician.
You should never attempt to repair the unit yourself, please
contact our service team.
Do not pinch or kink the power supply line between the unit
and cabinet.
General Safety
To prevent back and other types of injuries, use at least two
people to move the portable freezer.
When positioning the portable freezer, ensure that there is at
least a 2” clearance at sides and a 4” clearance at the rear of the
unit allowing proper ventilation of heat.
To ensure temperature will not increase dramatically close the
freezer lid immediately.
This unit is not intended to be used by children and should be
supervised to ensure that they do not play with this product.
Never allow children to crawl inside the unit. If disposing the
unit, remove the door.
If your model of portable freezer is equipped with a lock, be
sure to keep the keys away from children.
Do not place the unit near heat sources such as ovens, grills, or
direct sunlight.
Do not leave any cleaning solutions in the unit.
Do not use solvent-based cleaning agents or abrasive solutions
to clean the unit as they may damage the interior and exterior.
Do not turn the unit upside down, on its side, or at an angle
beyond 30 degrees.
Only use in an upright position on a flat, level surface.
Make sure unit is on a stable surface able to withstand the
weight of the unit and all of its contents.
Do not move the unit without emptying the contents and
securing the door in a closed position.
The cord should be secured behind the unit and should not be
left exposed to avoid damage and/or injury.
Unplug the unit if it is not going to be used for an extended
period of time.
Note: For your personal safety, this appliance must be grounded. It is equipped with a power supply cord having a
3-prong grounding plug. To minimize possible shock hazard, the cord must be plugged into a mating 3-pronged wall
socket, and grounded in accordance with the National Electrical Code and local codes and ordinances. If a mating
wall socket is not available, it is the personal responsibility of the customer to have a properly grounded, 3-prong
wall receptacle installed by a qualified electrician.

Table of Contents
IMPORTANT SAFETY INFORMATION .................................... ............... ............................................ I
INTRODUCTION ................................................ .......... .......... .......... ....................................................... 1
PARTS IDENTIFICATION .......................... .......... .......... .......... .............................................................. 2
OPEN VIEW .................................................. .......... .......... .......... ............................................................ 2
ACCESSORIES ...................................... .......... .......... .......... ................................................................... 2
PROPER LOCATION .......................... .......... .......... .......... ....................................................................... 3
HANDLING AND INSTALLATION ....... .......... .......... .......... ................................................................... 3
OPERATINGYOUR PORTABLE CAR REFRIGERATOR................. .......... ......................................... 4
TEST RUN ........................................................................ .......... .......... .......... ......................................... 4
UNDERSTANDING THE TEMPERATURE CONTROL SETTING ......... .......... .............................. 4
ON/OFF button .................................................................... .......... .......... .......... .......... .......... ................ 4
SET button ........................................................................ .......... .......... .......... .......... .............................. 5
“+”Button ................................................................ .......... .......... .......... .......... .................................... 6
“-”Button ..................................................................... .......... .......... .......... .......... ................................ 6
“Power ”indicator .................................................... .......... .......... .......... ............................................... 6
“Error”indicator .......................................................... .......... .......... .......... ........................................... 6
LED display ........................................... .......... .......... .......... .......... .......................................................... 6
TROUBLESHOOTING .................................. .......... .......... .......... ............................................................... 7
LIMITED WARRANTY .............................................. .......... .......... ............................................................. 8
What is covered ............................................. .......... .......... .......... .......... .......... ....... .................................8
What is not covered ....................................... .......... .......... .......... .......... .......... .......... ..............................8
Obtaining warranty service ......................... .......... .......... .......... .......... .......... ..........................................8

Introduction
Thank you for purchasing this portable car refrigerator. We are glad you chose us. We believe that your purchase of
this product opens a relationship between you and us. We will provide the customer support needed to nurture that
relationship.
This manual contains important information regarding the proper installation, use and maintenance of your portable
car refrigerator. Following this manual will ensure that your product will work at its peak performance and
efficiency.
Please save the original product packaging in case you need to safely transport your wine refrigerator.
For Your Records:
Please write down the model number and serial number below for future reference. Both numbers are located on the
ratings label on the back of your unit and are needed to obtain warranty service. You may also want to staple your
receipt to this manual as it is the proof of your purchase, and is also needed for service under your warranty.
Model Number:
Serial Number:
Date of Purchase:
To better serve you, please do the following before contacting customer service:
If you received a damaged product, immediately contact the retailer or dealer that sold you the product.
Read and follow this instruction manual carefully to help you install, use and maintain your portable car
refrigerator.
Read the troubleshooting section of this manual as it will help you diagnose and solve common issues.
Visit us on the web to register your product, download product guides, additional troubleshooting resources and
up-to-date information.
If you need warranty service, our friendly customer service representatives are available via email or by
telephone.

Parts Identification
Open View
Accessories
1. DC Power Cord- For use when traveling, plug directly into car lighter.
2. AC Power Cord- For use at home, plug directly into grounded outlet.
3. Interior Wire Baskets

Proper Location
NOTE:
Because this unit is compressor based, ample space is required around the unit to allow it to exhaust properly.
NOTE:
For refrigerator with drawbar, it is prohibited to draw it if the electricity is on. It is not recommended to draw it
if the floor is not smooth. Do not use it if the refrigerator is tilted. If the refrigerator is drawn to a place for use,
please leave it upright for 10 minutes before use.
Position your portable freezer in a location where there is proper air circulation and electrical connections.
Keep the portable freezer away from heat and direct sunlight if possible.
This portable freezer is suitable for car use and camping however, the appliance should not be exposed to rain or
any other severe weather elements.
This portable freezer should not be placed in a built-in or recessed area. It is designed to be freestanding.
The normal operation of the freezer depends on heat radiation from the condenser. For the initial use, remove all
packaging and allow at least 6” of room around the freezer (2” inches at side, 4” at rear of unit).
_____________________________________________________________________________________________
Handling and Installation
1. Remove all interior and exterior packaging.
2. Position the freezer in a dry and well-ventilated place. Keep the freezer away from direct sunlight, heaters and
corrosive gas.
3. Clean the interior surface with a little bit of lukewarm water and a soft cloth.
4. When inserting theAC power-cord into the power socket, make sure the power socket is a grounded
100-240V~AC /50- 60Hz socket. Also make sure that the unit’s grounding prong has not being tampered with.
Note: When inserting the DC power-cord, make sure the input is a 12V~DC / 24V power source.
5. When moving the freezer, always use both handles to the carry the unit as level as possible. This is in order to
protect the compressor and the sealed system
WARNING: Use two or more people to move and handle this unit. Failure to do so can result in back or other
injury. Carefully remove the packaging materials and any shipping tape before using.
IMPORTANT:
Do not remove any safety, warning, or product information labels from your portable car refrigerator.

Operating Your Portable Car Refrigerator
Test Run
DC input power
When attempting to plug your portable freezer into a standard 12 V socket, the unit will not work if socket has a
voltage of less than 9.6 V. The unit will restart when the voltage is 12.2V or greater.
When attempting to plug unit into a standard 24 V socket, the unit will not work if the socket has a voltage of less
than 21.3 V. The unit will restart when the voltage is 25.2 V or greater.
Understanding the Temperature control setting
Your portable freezer uses a digital control system for adjusting the thermostat.
1、ON/OFF button：
--Connect the refrigerator to the power supply and press the ON/OFF button once.
--Press the ON/OFF button again, the refrigerator will be off.
2、SET button：
--Long press SET button for 3 seconds and enter advanced parameter mode:
(1) Voltage protection mode：The machine has three battery protection functions, which protect the normal
operation of the refrigerator and protect the battery of the vehicle. The three functions are H3 (high), H2 (medium)
and H1 (low). Short press "+" or "-" button to choose the function. The function is set at "H2" (medium) protection
when the refrigerator is finished at the factory.
NOTE:
It is recommended to set the battery protection at H2 (medium) when it is used in the car.
It is recommended to set the battery protection atH2 (medium) or H1 (low) if it is external battery or backup
battery.
Because of the difference in voltage output from different vehicle power supply output, if there is voltage
protection (display screen shows F1), the battery function could be reduced to a lower one (H3 is adjusted to H2
or H1).
If to use the refrigerator after the car engine runs out of fire, please adjust the battery protection at H1 (low).
Otherwise, there may be a situation where the battery power of the car is too much consumed to start the vehicle.
The three voltage parameters as below:
H3 (high): 10.9V (stop) --12.2V (start voltage) 23.8V (stop) --25.2V (start voltage)
H2 (medium): 9.7V (stop) --11.0V (start voltage) 21.5V (stop) --22.9V (start voltage)
H1 (low): 9.6V (stop) --10.9V (start voltage) 21.3V (stop) --22.7V (start voltage)

(2) Short press the SET button again, and it becomes ECO or HH mode:
--Short press "+" or "-" button to choose ECO (energy-saving mode) or HH (fast cooling mode).
--The original set by factory is HH.
(3) Short press the SET button to choose the function of switch between Celsius and Fahrenheit. When you find this
function, please short press"+" once or twice to choose Celsius or Fahrenheit.
NOTE: If there is not any press on SET button for 10 second, the refrigerator will exit advanced parameter mode
automatically.
3、“ +”Button：for increasing the temperature setting，or There are other settings described above.
4、“ -”Button：for decreasing the temperature setting，or There are other settings described above.
--After you press ON/OFF button, you can set the temperature range from -25℃to 2℃. Short press "+" and "-"
button, or long press "+" and "-" button to adjust the temperature.
--When the refrigerator is on, press ON/OFF button and "-" button meanwhile for 5 seconds, then the machine
enters the temperature calibration mode, and the temperature can be adjusted at range of -5℃to 5℃.
5、“ Power ”indicator:
--When the refrigerator works, the light is red.
--The refrigerator stops working and the light goes out.
--When the refrigerator works in the ECO mode, the light is green.
6、“ Error”indicator: Fault alarm
--If there is a failure, the buzzer will ring continuously.
--the screen will show the fault codes.
--the failure indicator will be on in blue.
7. LED display: shows
--Display the temperature and other settings.
--the screen will show the fault codes.
--with codes as below:
F1: Voltage failure
F2: Fan current failure
F3: Compressor starting failure
F4: Minimum speed failure of compressor
F5: Controller temperature fault
E0: Broken sensor circuit
E1: Sensor short circuit
NOTE: The system is abnormal, check first if the battery voltage is right. If the battery voltage is right, then wait
3 minutes before you switch on the refrigerator. If the system is still abnormal when you restart the machine,
then call the after service for help.
kindly reminder: Common temperature setting
•Red wine storage (10℃), Vaccine, Insulin (2℃- 8℃), Fruit (4℃- 6℃), Beverage (2℃- 5℃), Meat (-10℃),
Ice cream (-15℃); Please be careful if you want to store drugs in the refrigerator.

TROUBLESHOOTING
Follow the troubleshooting guide below to resolve common issues.
Issue
Possible Cause
Solution
Unit is not functioning at all
and shows no signs of power.
Unit is not receiving power
Make sure the unit is plugged in
Insufficient power
Move the unit to another outlet. Check your
circuit breaker. (Refer to the rating label on the
back of the unit to determine the Amperage draw)
AC power cord
Test with a different cord. If unit works, replace
the AC power cord.
DC power cord
Test the unit with another power supply, e.g.
another vehicle with a known working DC power
outlet.
Disconnected wire
Contact customer service
Unit is making strange
noises
Some noises are normal
Review the normal sounds section of this manual.
The unit is not level
Move the unit to a level surface
Unit is making a loud
continuous metallic
knocking or pinging sound
Unit may have been shipped on its
side
Shut off the unit. Let the unit sit on a level
surface for at least 24 hours and restart.
Damaged compressor
Contact customer service
Unit is leaking
Drain plug is not attached
Insert the drain plug into the drain port.
Unit runs for a little while
and then it trips the power
cord or the circuit breaker
The unit may be plugged into an
outlet that cannot supply the correct
amount of current
Contact an electrician if the unit works in a
different room or circuit
The control panel lights
blink randomly
Unit may have a faulty control
panel
Restart the unit, and if issue persists, contact
customer service
Unit has an HH error
Ambient temperature has exceeded
40℃
Restart the unit, and if issue persists, contact
customer service
Unit has an OC error
Thermostat error was detected
Restart the unit, and if issue persists, contact
customer service
Unit has a SC error
A short circuit in thermostat
detected
Restart the unit, and if issue persists, contact
customer service
Unit has power, but the
compressor does not run
Ambient temperature is too low
Move the unit to a warmer location.
Disconnected wire
Contact customer service
Technical parameters
Model
JK-B-18D/28D
JK-B-25D
JK-B-30D
JK-B-40D
JK-B-50D
Volume
18L/28L
25L
30L
40L
50L
Climate type
ST/N/SN
ST/N/SN
ST/N/SN
ST/N/SN
ST/N/SN
Voltage
AC- 115V~50-60Hz
DC- 12V/24V
AC- 115V~50-60Hz
DC- 12V/24V
AC- 115V~50-60Hz
DC- 12V/24V
AC- 115V~50-60Hz
DC- 12V/24V
AC- 115V~50-60Hz
DC- 12V/24V
Current
1.5A/3A
1.7A/3.4A
1.85A/3.7A
2.1A/4.2A
2.3A/4.6A
Power
36W/42W
41W
45W
50W
55W
Temperature
-18℃
-18℃
-18℃
-18℃
-18℃
Refrigerant
R134a
R134a
R134a
R134a
R134a
(Note: due to technical improvement, the above parameters may be changed, and it is subject to the rating label
parameters of the product.)