GZ-35A - Cooler Guzzanti - Free user manual and instructions

Product Type	Portable Cooler/Heater Box
Brand	Guzzanti
Model	GZ-35A
Carrying Capacity / Volume	35 L (Cold storage: 8 L, Refrigeration: 27 L)
Temperature Range (Cooling)	20°C to -18°C
Temperature Range (Heating)	30°C to 50°C
Power Supply	DC 12V / 24V (optional AC adapter)
Rated Power (Cooling)	70 W
Rated Power (Heating)	40 W
Dimensions (L x W x H)	655 x 356 x 415 mm
Net Weight	15.5 kg (±0.5 kg)
Insulation	PU (polyurethane) foam
Climate Class	N/SN
Noise Level	≤50 dB(A)
Refrigerant	R1234yf (flammable)
Control Type	Electronic with LED display
Key Features	LED light on cover opening, memory function, over-current/voltage protection, short-circuit protection, temperature sensor fault alarms
Accessories Included	AC adapter, cigarette lighter socket, user manual
Intended Use	Vehicle, camping, household, and similar applications
Cleaning	Wipe interior with damp cloth; clean air inlet grille regularly
Disposal	Do not dispose with household waste; recycle at authorized centers

Frequently Asked Questions - GZ-35A Guzzanti

How do I set the temperature on my Guzzanti GZ-35A cooler?

Press the ON/OFF button to power on. Then press the Settings button to select cooling or heating mode. Use the + and - buttons to adjust the desired temperature. The display shows the current interior temperature.

Can I use the heating function to warm food?

Yes, the GZ-35A can heat from 30°C to 50°C. Press the Settings button to switch to heating mode. Do not place sealed cans or carbonated beverages inside during heating to avoid explosion.

What do error codes E1, E2, E3, etc. mean?

E1: Temperature sensor short circuit. E2: Sensor disconnected. E3: Low voltage input (<10.7V for 12V, <22.6V for 24V). E4: Over voltage (>15V/30V). E5: Compressor voltage protection. E6: Fan over current. E7: Compressor start error. E8: Minimum speed error. E9: Controller thermal protection. Refer to the manual for troubleshooting steps.

How should I clean and maintain the cooler?

Unplug the device before cleaning. Wipe the interior with a damp cloth to remove stains. Clean the air inlet grille regularly to maintain cooling efficiency. The door seal can be cleaned with mild soapy water.

What type of power supply does the GZ-35A require?

It operates on DC 12V or 24V. An optional AC adapter is available for home use. The device includes a cigarette lighter plug for vehicle use.

Can I freeze food in this cooler?

The cooler can reach temperatures as low as -18°C, making it suitable for freezing. However, it is recommended for short-term freezing and as a pantry appliance. For long-term storage, set temperature to 10-20°C and use sealed bags.

Why does the cooler stop cooling after being tilted?

If the appliance is tilted more than 30° or turned upside down, the compressor may need time to recover. Stop the compressor and let it rest for 2 hours before restarting to avoid damage.

Is it safe to use the cooler in a car?

Yes, it is designed for vehicle use. Ensure proper ventilation (at least 15 cm clearance on sides) and secure it to prevent movement. Do not expose the device to rain.

How do I dispose of the cooler properly?

Do not throw it in household waste. Take it to an authorized recycling center. The refrigerant is flammable, so disposal must follow local regulations. The crossed-out wheelie bin symbol indicates separate collection.

What is the memory function?

After setting the desired temperature, if no button is pressed for 5 seconds, the setting is saved. When the device is turned off and on again, it will resume the last saved mode and temperature.

USER MANUAL GZ-35A Guzzanti

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Instrukcja obsługi

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Gebrauchsanleitung

Instruction manual

DŮLEŽITÁ UPOZORNĚNÍ

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FUNKCE

1. Režim chlazení:

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FUNKCIE

1. Režim chladenia:

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FUNKCJE

1. Tryb chłodzenia:

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FUNKCIÓK

1. Hűtés mód:

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FUNKCIJE

1. Način za hlajenje:

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FUNKTIONEN

1. Kühlmodus:

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IMPORTANT SAFETY INSTRUCTIONS

READ CAREFULLY AND KEEP FOR FUTURE REFERENCE INTRODUCTION

IMPORTANT NOTICES

When using an electrical appliance, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and/or injury, including the following:

1. Read all instructions before using.

2. This appliance is intended to be used in household and similar applications such as

– staff kitchen areas in shops, offices and other working environments;
– farm houses and by clients in hotels, motels and other residential type environments;
– bed and breakfast type environments;
– catering and similar non-retail applications.

The device is suitable for:

– Operation in vehicles
– Cooling and deep-freezing food
– Camping use.

1. WARNING : If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.

WARNING: Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance.

WARNING: When positioning the appliance, ensure the supply cord is not trapped or damaged.

WARNING: Do not locate multiple portable socket-outlets or portable power supplies at the rear of the appliance.

WARNING: When disposing of the appliance do so only at an authorized waste disposal centre. Do not expose to flame.

WARNING: Risk of child entrapment. Before you throw away your old refrigerator or freezer. Take off the doors. Leave the shelves in place so that children may not easily climb inside.

WARNING: Keep ventilation openings, in the appliance enclosure or in the built-in structure, clear of obstruction.

WARNING: Do not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by the manufacturer.

WARNING: Do not damage the refrigerant circuit.

WARNING : Do not use electrical appliances inside the food storage compartments of the appliance, unless they are of the type recommended by the manufacturer.

WARNING : When disposing of the appliance, do so only at an authorized waste disposal centre. Do not expose to flame.

1. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

Children aged from 3 to 8 years are allowed to load and unload refrigerating appliances.

1. The refrigerant (R1234yf) and insulation blowing gas is flammable.

Caution: risk of fire / Flammable materials

The refrigerant (R1234yf) is contained within the refrigerant circuit of the appliance, a natural gas with a high level of environmental compatibility, which is nevertheless flammable. During transportation and installation of the appliance, ensure that none of the components of the refrigerant circuit becomes damaged.

If the refrigerant circuit should be damaged:

• Avoid opening flames and sources of ignition.

• Thoroughly ventilate the room in which the appliance is situated.

• Remove all packing material and carefully check your cooler box to ensure it is in good condition and that there is no damage to the cooler box or power cord and plug.

• Ensure the voltage is compliant with the voltage range stated on the rating label, and ensure the earthing of the socket is in good condition.
• Do not start the compressor power switch frequently (at least 5 minutes each time) to avoid damage to the compressor.

• Do not connect or disconnect the electric plug when your hands are wet.

• Place the cooler box on a dry and horizontal surface.

• Do not place the product upside down, or tilt it above 30^ .

• To ensure proper ventilation for the cooler box, make sure the cooler box is at least 15cm away on either side so as to allow correct ventilation on the appliance. Do not place the cooler box near an oven, radiator, or other source of heat.

• Never put the cooler box under the sunlight.

• The cooler box must be installed in an area protected from the elements, such wind, rain, water spray or drips.

• Metal sheet or other electric objects are not allowed to be inserted into the appliance to avoid fire and short circuit.

• To protect against risk of electric shock, do not pour water on cord, plug and ventilation, immerse the appliance in water or any other liquid.

• Unplug the appliance after using or before cleaning.

• Please keep the instruction manual.

• Pay attention to the use of heating function, do not put the canned beer and beverage containing gas into the box, which may cause explosion.

• The appliance is suitable for camping use but the appliance shall not be exposed to rain.

• Opening the door for long periods can cause a significant increase of the temperature in the compartments of the appliance.

• Clean regularly surfaces that can come in contact with food and accessible drainage systems.

• Store raw meat and fish in suitable containers in the refrigerator, so that it is not in contact with or drip onto other food. Please do not open the door frequently. If storing food for long periods of time, pack food in a Ziploc bag and set the temperature to 10-20 °C.

• If the refrigerating appliance is left empty for long periods, switch off, defrost, clean, dry, and leave the door open to prevent mould developing within the appliance.

• This refrigerating appliance is not intended to be used as a built-in appliance.

• This refrigerating appliance is not suitable for freezing foodstuffs. This refrigerating appliance is recommended to be used as a pantry appliance.

• The product can be powered by a removable adapter and cigarette lighter, and the instructions for use should include the following information:
• The appliance may only be used with a removable power supply unit.
• Class III appliances must be delivered only to SELV.
• If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard.
• Warning: Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance.
• COMPRESSION-TYPE APPLIANCES that use FLAMMABLE REFRIGERANTS shall additionally include the substance of the warnings listed below:
• WARNING: Keep ventilation openings, in the appliance enclosure or in the built-in structure, clear of obstruction.
• WARNING: Do not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by the manufacturer.
• WARNING: Do not damage the refrigerant circuit.

SPECIFICATIONS

Model GZ-45A

No. Descriptions Specification
1 Product specification DC control module: DC12V/DC24V (optional adapter)
2 Volume (L) Cold storage: 11 Refrigeration:		34
3 Rated power		Cooling power: 70W Heating power: 52W
4 Refrigeration performance ΔT 40 °C - 45 °C
5 Noise ≤50dB(A); [Background noise ≤25dB(A)]
6 Evaporator Tube-Plate Type
7 Condenser φ4.8 bundy tube
8 Temperature control form		Electronic control, (temperature) adjustable from 20 to - 18 °C Heating (temperature) adjustable from 30 to 50 °C
9 Max overall dimensions (mm) L 655 * W 356 * H 493 (mm)
10 Packing dimensions (L×W×H)		L 685 * W 380 * H 538 (mm)
11 Net weight 16.5±0.5
12 Gross weight 18.5±0.5
13 PU insulation √
14 Climate type N/SN

Model GZ-35A

No. Descriptions Specification
1 Product specification DC control module: DC12V/DC24V (optional adapter)
2 Volume (L) Cold storage: 8 Refrigeration: 27
3 Rated power		Cooling power: 70W Heating power: 40W
4 Refrigeration performance ΔT 40 °C - 45 °C
5 Noise ≤50dB(A); [Background noise ≤25dB(A)]
6 Evaporator Tube-Plate Type
7 Condenser φ4.8 bundy tube
8 Temperature control form Electronic control, (temperature) adjustable from 20 to - 18 °C Heating (temperature) adjustable from 30 to 50 °C
9 Max overall dimensions (mm) L 655 * W 356 * H 415 (mm)
10 Packing dimensions (L×W×H) L 685 * W 380 * H 461 (mm)
11	Net weight	15.5±0.5
12 Gross weight	17.5±0.5
13 PU insulation	√
14 Climate type	N/SN

PRODUCT DESCRIPTION

1. The whole machine view

1. Upper cover
2. Wheels
3. Housing
4. Upper cover handle
5. Air outlet
6. DC socket
7. Handle
8. Control panel

2. Control panel view

OPERATION

1. Connect the power supply, plug the power plug into the appropriate socket, the shape and voltage of the socket should be consistent with the label, and connect to AC220V power supply.

2. Select control button: (the silk screen is located in the middle of the button)

“：ON/OFF button “：Settings button

“⊖”: Temperature decrease button

“⊕”: Temperature increase button

1. Cover open/close instructions:

3.1 When the cover is opened, the LED light is on, and the limit strip of door body supports the door body, which is convenient for taking things.
3.2 When closing the cover, you need to lift the door limit strip (Fig. 1) to make the cover close smoothly, and the LED light is off.

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Fig. 1

FUNCTION

1. Refrigeration mode:

Press the “ ” button to power on, press “ “ button to select cooling and “ “ button to select heating function according to the user’s requirements, and the required temperature can be selected by adjusting “ + “ and “ “ buttons, and the current temperature in the cooler box will be displayed on the screen. When the temperature reaches the set temperature, the cooling or heating function is stopped. When the temperature is two degrees higher than the set temperature, and keep working at the set temperature in this cycle.

1. Memory function:

After setting the temperature, if the user does not operate within 5 seconds. Memorize the setting at this time and execute the mode setting before after the second power on.

1. If the machine turns 180 degrees, it is necessary to stop the compressor for 2 hours.

2. Protection function:

a) Over current protection: when the output current is too large, the output is turned off and has the function of over-current protection.
b) Vehicle input protection:
When the vehicle input voltage is lower than 10.7V (when the input voltage is 12V), or 22.6V (when the input voltage is 24V), start the protection, turn off the load and alarm E3, and the alarm failure lasts for 12 seconds to shut down the machine.

c) Over voltage protection: when the input voltage is higher than 15V (when the input voltage is 12V), or 30V (when the input voltage is 24V), start the protection, turn off the load and alarm E4, and the alarm failure lasts for 12 seconds to shut down the machine.
d) Short circuit protection: in case of short circuit, the circuit has short circuit protection function.
e) Temperature sensor short circuit: in case of abnormal short circuit of temperature sensor, start protection, turn off the load and alarm E1.
f) Temperature sensor disconnection: in case of abnormal disconnection of temperature sensor, start protection, turn off the load and alarm E2.

TROUBLESHOOTING

Fault Code	Fault Analysis	Inspection and	maintenance	Notes
Temperature sensor short circuit	E1 In case	se of abnormal short circuit of temperature sensor, start protection, turn off the load and alarm E1.	Replace the temperature sensor
Temperature sensor disconnection	E2 In case	se of abnormal disconnection of temperature sensor, start protection, turn off the load and alarm E2.	Check whether the temperature sensor is poorly connected or replace the temperature sensor.
Vehicle input protection (under voltage)	E3 When	the vehicle input voltage is lower than 10.7V (when the input voltage is 12V), or 22.6V (when the input voltage is 24V), start the protection, turn off the load and alarm E3, and the alarm failure lasts for 12 seconds to shut down the machine.	Check the power supply and use it after the power supply returns to normal.
Vehicle input protection (over voltage)	E4 When	the input voltage is higher than 15V (when the input voltage is 12V), or 30V (when the input voltage is 24V), start the protection, turn off the load and alarm E4, and the alarm failure lasts for 12 seconds to shut down the machine.	Use it after the power supply returns to normal.
Compressor voltage protection	E5 When	the voltage exceeds the set range of compressor voltage protection, start the protection, turn off the load and alarm E5.	Use it after the power supply returns to normal.
Fan over current protection	E6 When	the peak current of external fan is greater than 1A, start the protection, turn off the load and alarm E6.	Repair or replace the fan.
Compressor start error	E7 If the	motor stalls or the pressure of the refrigeration system is too high, start the protection, turn off the load and alarm E7.	Shut down and stand for half an hour before starting. If it can return to normal, there is no need for maintenance. Otherwise, please repair and replace the compressor control box.
Minimum speed error	E8 When	the refrigeration system is overloaded and the motor cannot maintain the minimum speed of 1850rpm, start the protection, turn off the load and alarm E8.	Shut down and stand for half an hour before starting. If it can return to normal, there is no need for maintenance. Otherwise, please repair and replace the compressor control box.
Controller thermal protection	E9 If the	refrigeration system is overloaded or the ambient temperature is too high, the controller will overheat protection, start protection, turn off the load and alarm E9.	Shut down and stand for half an hour before starting. If it can return to normal, there is no need for maintenance. Otherwise, please repair and replace the compressor control box.

MAINTENANCE

Caution: The plug must be removed before cleaning to avoid electric shock.

a) If there is oil stain in the inner cavity, please clean it in time.
b) Regularly clean the dirt around the cavity to avoid producing peculiar smell.
c) Please clean the dust at the air inlet regularly to improve the cooling efficiency.
d) The door sealing strip is easy to get dirty, please clean it in time.

WIRING DIAGRAM

PARTS

Adaptor 1 User manual 1
Cigarette lighter socket 1

TEMPERATURE COMPARISON FOR STORING VARIOUS ITEMS - MODEL GZ-35A

No. Item	Type Temperature
1 Fruits	and vegetables 5 °C ~ 10 °C
2 Fast food and pastry	-3 °C ~ 4 °C
3 Seafood and aquatic products	-11 °C ~ -4 °C
4 Frozen meat	-18 °C ~ -12 °C

DISPOSAL OF USED ELECTRICAL AND ELECTRONIC EQUIPMENT

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This symbol on products or original documents means that used electric or electronic products must not be added to ordinary municipal waste. For proper disposal, renewal and recycling hand over these appliances to determined collection points. Alternatively, in some European Union states or other European countries you may return your appliances to the local retailer when buying an equivalent new appliance. Correct disposal of this product helps save valuable natural resources and prevents potential negative effects on the environment and human health, which could result from improper waste disposal. Ask your local authorities or collection facility for more details. In accordance with national regulations penalties may be imposed for the incorrect disposal of this type of waste.

For business entities in European Union states

If you want to dispose of electric or electronic appliances, ask your retailer or supplier for the necessary information.

Disposal in other countries outside the European Union.

This symbol is valid in the European Union. If you wish to dispose of this product, request the necessary information about the correct disposal method from the local council or from your retailer.