Subcold Classic 4L User manual

PLEASE READ AND FOLLOW ALL SAFETY RULES AND OPERATING INSTRUCTIONS BEFORE USE

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Please read the manual carefully before using the unit
Product Features.................................................................................................. 2
Wiring Diagram………………................................................................................. 2
Operation Guide………………................................................................................. 3
Application……………….......................................................................................... 5
Cleaning & Maintenance………………..................................................................... 5
Safety Warnings ...................................................................................................... 5
Troubleshooting Tips................................................................................................ 6
Specifications….………………................................................................................. 7
Frequently Asked Questions ................................................................................. 8

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1. The mini fridge cooler and warmer, uses semiconductor refrigeration technology, this can refrigerate
and also warm due to the advanced thermoelectric element. Characterized by quietness, free of CFC,
low power consumption, high efficient cooling and heating function, long operating life, nice
appearance, small size and easy to carry, it is also environmentally friendly.
2. Application of the new concept and technology the PELTIER effect makes this product break away from
cumbersome and noisy compressor and oxygen fluoride pollution.
3. The product, characterized by a long operating life, small size, being easy to carry and both cooling and
warming functions, is fit for use indoors and outdoors (under cover)
4. The thermoelectric cooler can last a long time if used correctly and maintained well and operated
according to the manual ; heat insulation ensures the service life of product ; a strong refrigerating
ability makes the temperature around 18°C lower than current ambient temperature; when the heat
function is enabled it can reach as high as 60-65°C

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I. When car power is used (DC 12V)
i. The car engine is required to run to ensure good voltage supply to the fridge.
ii. Plug of the DC power cord into the vehicle 12V outlet securely.
iii. Switch the power switch to the DC side and select either cooling or heating mode.
II. When the household power is used (AC 230V)
i. Plug the AC mains lead into the household power outlet securely
ii. Plug in the appliance and turn the power on
iii. Switch the power switch to the AC side and select either cooling or heating mode.

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III. Cooling and heating operation
i. First make sure the switch at the side of the cooler and warmer is in OFF state.
ii. Insert the plug of the power cord into the socket of the unit.
iii. Insert the plug of the cigarette lighter into the cigarette lighter in the car.
iv. Cooling: set the power switch at the position of COOLING.
v. The green indicator will be on indicating the unit is in cooling mode.
vi. Heating: set the switch at the position of Heating. The red indicator will be on indicating the unit
is in heating mode.
Tips and tricks for electronic refrigerator :
1. The closer to the thermoelectric element inside
the cooler, the better cooling effect is.
2. For very cold drinks, icing effect is better
with aluminum canned drinks.
3. For fresh fruits (e.g. watermelon), cut the fruit
into smaller pieces first, and then cover them
with cling film and put the flat surface close to
the inner wall of refrigerator.
4. For a ready meal, put the meal in a metal dish
first, and then cover it with cling film and put on
the base of the unit close to the inner wall of the
refrigerator.
5. For refrigeration of cosmetic items or
medicine, put them in the middle or lower shelf,
the closer to thermoelectric cooler, the better
cooling effect is.
Temperature reference for
refrigeration and freshness
1. When items are put into the refrigerator for
cold storage, the temperature in the
refrigerating chamber should be between 3-
8°C to keep quality and flavor and prolong
freshness.
2. The colder the ambient temperature is, the
colder the unit will operate internally, for
example a n unheated room would possibly
make the items freeze internally.
3. Recommended to keep the room ambient
above 18°C and below 25°C for best
operation. Ensure ventilation at all times.

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1. Turn off the cool-heat switch first then unplug to cut off the power supply. Do not unplug with the control
switch in the on position.
2. Use a soft warm cloth with a little non-haz detergent to wipe surfaces and clean the mini fridge surface, or
simply use a soft cloth with warm water to wipe the inside of fridge regularly.
3. Do not expose the fridge to water directly, especially, water must not splash on the working parts, e.g. the
heat dissipation outlet or the switch or socket, the electrical PCB may be damaged, or even electric shock
may occur.
❑
Vehicle, home, boat, office etc. Applicable refrigerating object: Fruit, beer, canned soda, cosmetics, make-up
skin care, make-up etc.
❑
Ice cream, frozen food, chemical agent, raw fish and meat (cooked food can be stored for 5 - 8 hours).
1. Any covering, e.g. towel or clothes, is prohibited on the rear
of the fan outlet to prevent the fan from overheating and
causing the item to become faulty.
2. AC /DC power cables must be connected correctly to the relevant input on the back of the item.
3. The product must not be in close proximity to inflammable or explosive substances.
4. Non-professionals are prohibited to open the machine for repair.
5. It is prohibited to directly push the switch from the cooling position to the warming position and vice versa.
Before switching between the two modes, the switch must be put in to the OFF position and the item should
be shut down for 30 minutes at least with the door open so the temperature is neutral.
6. Don’t rinse it with water. Always keep the item clean and dry.
7. Prevent the appliance from being put upside down.
8. Please don’t drop or shock the unit.
9. Any fresh food should not be stored inside before being correctly packaged.
10. The appliance should not be exposed to rain, showers or running water.
11. Children should be supervised to ensure that they do not play with the appliance.
12. Ventilation must be ensured around the product during use for ventilation.
13. Do not use any electrical appliance inside of the product.
14. Some people (including children) are prohibited to use the product, e.g. any person who has any physical,
sensory or mental defect, or person who lacks experience or knowledge, unless they get supervision and
instruction about how to use the product safely.

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1. Please confirm the sockets and the power cords to be tight when the fridge does not work; A loose
socket will result in the cords and sockets over heating and possible damage to the item
2. Please make the following measures if the cooling effect is not good:
a. Ensure the ventilation surrounding the item is sufficient 10cm in all sides and above the item.
b. Ensure the door is closed as much as possible and the temperature if recorded is done so from
the center rear of the shelf.
c. Check the switch is in the correct mode and the corresponding Green / Red Light is illuminated.
d. If overworked the unit may need to be powered off to reset, switch off for 1 hour and re-select
the cooling or heating mode and power input in AC or DC
e. If the fan is faulty or there is no cooling effect at all. Please contact a professional for repair.
The most common issues experienced by Subcold users are caused by
voltage issues . The following problems give an overview of possible
errors and instructions of how to check the unit.
CONCERN POSSIBLE REASON CHECK
Blinking Green Light in the
back of unit
Unit fan not rotating
Contact Customer Support for assistance.
Consult this user manual or go to
subcold.com
Fan making a loud noise
Check for fan obstruction or failure
Check the back to see if there is at least 10cm
clearance around fan and vents. If issue persists,
contact Customer Support.
Unit doesn’t cool contents
as advertised.
Most Subcold Units cool contents down
anywhere from 16-20 degrees
Consult your Unit’s specific cooling information
found in this user manual. If cooling
temperature is significantly less than what is
listed for your unit, contact Customer Support.
•Unit not cooling and
light off in the back
•Unit stopped working
Main power source failure
Check outlets first.
If unit is not turning in your home/office: Try
plugging the unit in to your car using the DC
power cord.
If unit is not turning on in your car/motor
vehicle: Try plugging the unit into a 100-120
volt outlet in your home/office using the
included AC power cord.
If problem persists, contact Customer Support.
•Ice is building inside the
unit, around the center
screws in the back.
•Water collecting at the
bottom of the unit.
•Water drip or leakage.
•
Check that the door is clean and free
from obstruction and is closed securely.
•
Water Condensation. It is normal for
thermo-electric units, while in cooling
mode, to produce water droplets that
may freeze in the back and then melt.
•
Water condendsation is normal in a
thermo-electric unit. Check if water
accumulation is due to condensation.
While the unit is off and at room temperature,
take a soft cloth and gently wipe down the
inside of your unit to remove any moisture that
may accumulate.
This is recommended once or twice a week
If issue persists, contact Customer Supports for
assistance

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Model CLASSIC4/ULTRA6/ULTRA10/ULTRA15
Capacity 4/6/10/15L
Output Voltage (AC) 230V
Power (AC) Cool 50W / Warm 45W
Output Voltage (DC) 12V
Power (DC) Cool 45W / Warm 40W
Cooling 18°C Below Ambient
Warming 60-65°C

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❑What can I keep in my Subcold product?
Anything you wish to keep warm or cold!
For warming, our customers love to keep their hot lunches and soups warm; and to warm wash cloths.
Our products are best when already-warm items are put into it. To warm a completely cold item can take
several hours.
For cooling, our customers often store breast milk, beauty and skincare products, cold drinks,
sandwiches, and more!
❑What type of USB power bank (portable charger) can I use with this model?
Only the Subcold Classic 4L is capable of being powered with a (minimum) 2A power bank and comes with an
included USB cord for increased portability. When using USB power, this unit operates in ECO mode. (NOTE: do not
use a computer USB port as they don’t output 2A.)
❑What does “ECO mode” mean on my Classic-4L?
ECO mode is a low-power mode when the unit uses less energy. ECO-mode only applies to the Classic 4L when
using a USB power bank and is automatically switched to ECO-mode cooling
❑Can I leave my Subcold Mini Fridge plugged in every day, 24 hours per day?
Yes, you can leave your Subcold fridge plugged into an AC outlet in your home or office. We recommend
disconnecting your from your vehicle when you turn off your vehicle.
❑How can I get a replacement power cord?
Subcold replacement cords are available on our website directly at Subcold.com
❑Can I adjust the thermostat on my cooler/warmer?
No adjustment can be made to the temperature setting. This is due to the thermo-electric design and the PELTIER
effect
❑Can my mini fridge keep things frozen?
This series of mini fridge is not designed to keep things frozen. These are designed for a positive temperature only
and not to freeze the contents loaded inside.
❑Does the back of a Subcold get very hot?
Thermo-electric units have two sides, so when a DC electric current flows through the device, it moves heat from
one side to the other, so that one side gets cooler. Make sure there is at least a 10cm clearance for necessary air
flow and circulation. If the back of your mini fridge gets very hot, turn off the unit, and contact Customer Support.
❑Will my Subcold mini fridge make a lot of noise?
Subcold coolers/warmers are not noisy thanks to on going advanced technology—our unique cooling system that
makes our thermo-electric units quiet, yet powerful and efficient. The fan makes a slight whirring sound and this
sound is normal. However, if you hear a very loud sound, turn off the unit, and contact Customer Support.
❑Are interior shelves removable?
Yes, the shelf and door holders are removable. To remove the shelf, gently Slide it out. To remove the door holder,
gently lift upwards from slots.
❑Does this unit come with a warranty?
Yes, each Subcold product comes with a standard 1-year warranty. Please refer to this User Manual or contact us via
our website at subcold.com for more information

www.subcold.com @subcoldltd
01506415564 (UKOffice Hours) @subcold_official
[e-mail]