Q: Why is the temperature setting not working anymore and the fridge only freezes?

The temperature setting only works if the fridge is in Compressor (230V) mode . This is the most likely cause of the problem. Checks to perform: Check the current power mode - The Coolfun CK 40D has two independent systems: thermoelectric (12V) and compressor (230V). In thermoelectric mode, the TEMP +/- buttons do not work and the temperature cannot be adjusted. Switch to compressor mode - Plug the device into a 230V outlet (no cigarette lighter or 12V battery). The digital display will show the current or desired temperature. Use the TEMP buttons - The TEMP - and TEMP + buttons allow you to adjust the temperature in increments of 1°C. The range is from +10°C to -15°C in compressor mode. Check the fuse - If the 230V power is properly connected but nothing works, the fridge's 5A fuse or the vehicle's 15A fuse (if plugged in) may be blown. Important: The device should never operate simultaneously on both systems. Only one power source at a time (12V OR 230V).

Q: What does the display code D1 mean on my DOMETIC CoolFreeze CFX 35 W?

D1 is not an error code - it is a brightness setting for the screen of the DOMETIC CoolFreeze CFX 35 W. Your device has three brightness levels: d0 : default brightness (factory preset) d1 : medium brightness d2 : dark mode (low brightness) How to change this setting: Press the SET button four times in a row, then use the UP/DOWN buttons to choose the desired brightness level. Important: The only documented true error code for this model is "Err1" , which indicates an internal malfunction requiring repair by an authorized DOMETIC service center. If you see "Err1" displayed, do not attempt to repair it yourself.

Q: How to insert a gas cartridge into the CombiCool RC 1205 GC?

Before you begin: Disconnect the device from any power source (electricity and battery). Ensure that the gas connection is not already made. The operation must be carried out in a well-ventilated area, free from sources of fire or sparks. Installation steps: Read the handling and storage instructions on the side of the 250 g self-sealing gas cartridge Check the cleanliness of the refrigerator's connection port and the cartridge before making any connection Close the device's valve Place the control lever in the upper position Insert the cartridge into the designated slot on the refrigerator Press firmly until the cartridge is properly positioned Leak check: After connection, it is mandatory to perform a leak test by applying a soapy mixture to the connection joints. Bubbles indicate a leak. Never use a flame to detect leaks (risk of explosion and burns). Starting the burner: Turn the thermostat to the maximum position (MAX), press the gas safety valve and hold it down for 10 seconds, then quickly press the piezo ignition button several times. If the flame does not ignite, repeat the operation (the air in the piping must be evacuated first). Once the flame is lit, continue to hold the safety valve down for an additional 20 seconds. Important notice: The device can only operate with a 250 g propane/butane gas cartridge (type I3+) with a pressure of 28-30/37 mbar. During transport or moving the refrigerator, the cartridge must never remain connected. Gas operation is strictly reserved for open and well-ventilated spaces only (garden, terrace, ventilated tent). Its use is prohibited indoors, in moving vehicles, or in closed cabins.

Question 1

What are the dimensions of the interior of the DOMETIC CFX2 45?

Accepted Answer

The manual for the DOMETIC CFX2 45 does not provide the exact interior dimensions. However, here is what you need to know:

External dimensions

720 x 431 x 503 mm (L x W x H) - including handles

Usable volume

45 liters

The interior dimensions will be slightly smaller than the external dimensions due to wall insulation. For a rough estimate, subtract about 50 to 80 mm from the external dimensions depending on the thickness of the insulation.

If you need precise interior dimensions to check if a specific item fits inside, it is recommended to contact Dometic support directly with your exact question.

Question 2

Why is the temperature setting not working anymore and the fridge only freezes?

Accepted Answer

The temperature setting only works if the fridge is in Compressor (230V) mode. This is the most likely cause of the problem.

Checks to perform:

Check the current power mode - The Coolfun CK 40D has two independent systems: thermoelectric (12V) and compressor (230V). In thermoelectric mode, the TEMP +/- buttons do not work and the temperature cannot be adjusted.
Switch to compressor mode - Plug the device into a 230V outlet (no cigarette lighter or 12V battery). The digital display will show the current or desired temperature.
Use the TEMP buttons - The TEMP - and TEMP + buttons allow you to adjust the temperature in increments of 1°C. The range is from +10°C to -15°C in compressor mode.
Check the fuse - If the 230V power is properly connected but nothing works, the fridge's 5A fuse or the vehicle's 15A fuse (if plugged in) may be blown.

Important: The device should never operate simultaneously on both systems. Only one power source at a time (12V OR 230V).

Question 3

The Dometic TropiCool TC 07 portable refrigerator is not cooling and only heats, how to fix it?

Accepted Answer

If your TropiCool TC 07 is heating instead of cooling, the problem usually comes from the operating mode or the power supply. Here’s how to check and fix it:

1. Check the mode switch

The device has a three-position switch:

KALT/COLD - Cooling mode (green light)
HEISS/HOT - Heating mode (red light)
AUS/OFF - Off

Make sure the switch is in the KALT/COLD position to activate cooling.

2. Check the power supply

The TropiCool TC 07 consumes 36W at 12V DC (car cigarette lighter) or 40W at 230V AC (power adapter). Depending on your power source:

In the car: Check that the vehicle's ignition is on (the cigarette lighter only works with the engine running or the ignition on), clean the cigarette lighter contacts, and check that the 5A fuse in the cable is not blown.
On 230V mains: Ensure that the supplied adapter is properly connected and that the wall socket is operational.

3. Allow time for cooling

The Peltier technology of the TC 07 (without compressor) cools gradually to about 5°C below ambient temperature. Full cooling may take 30 to 45 minutes. Wait before concluding that there is a fault.

4. Before concluding

If cooling still does not work after these checks, unplug the connection cable, wait a few minutes, then reconnect it. A reset may resolve temporary malfunctions.

Question 4

What does the display code D1 mean on my DOMETIC CoolFreeze CFX 35 W?

Accepted Answer

D1 is not an error code - it is a brightness setting for the screen of the DOMETIC CoolFreeze CFX 35 W.

Your device has three brightness levels:

d0: default brightness (factory preset)
d1: medium brightness
d2: dark mode (low brightness)

How to change this setting: Press the SET button four times in a row, then use the UP/DOWN buttons to choose the desired brightness level.

Important: The only documented true error code for this model is "Err1", which indicates an internal malfunction requiring repair by an authorized DOMETIC service center. If you see "Err1" displayed, do not attempt to repair it yourself.

Question 5

Why does my TropiCool TCX 35 make clicking noises in 220V AC mode?

Accepted Answer

The TropiCool TCX 35 operates on dual power supply: 12/24V DC or 220-240V AC. When plugged into 220V AC, some clicking or light buzzing noises are normal and not a problem.

Possible sources of the clicks:

The power relay: A small click at startup or when activating the cooling mode is due to the electromagnetic relay that automatically switches between power sources (DC/AC).
The compressor: Light clicking sounds may come from the compressor starting and stopping to maintain the target temperature.
The energy-saving mode: According to the manual, the device switches to energy-saving mode once the temperature is reached. Variations in compressor operation can generate intermittent noises.

To check:

Ensure that the device is resting on a stable and flat surface (vibrations amplified if poorly positioned).
Check that the lid is properly closed.
Ensure that the device has at least 5 cm of clearance around it for ventilation.

If the noises become excessive, abnormal, or are accompanied by a loss of cooling, contact DOMETIC support.

Question 6

How to insert a gas cartridge into the CombiCool RC 1205 GC?

Accepted Answer

Before you begin: Disconnect the device from any power source (electricity and battery). Ensure that the gas connection is not already made. The operation must be carried out in a well-ventilated area, free from sources of fire or sparks.

Installation steps:

Read the handling and storage instructions on the side of the 250 g self-sealing gas cartridge
Check the cleanliness of the refrigerator's connection port and the cartridge before making any connection
Close the device's valve
Place the control lever in the upper position
Insert the cartridge into the designated slot on the refrigerator
Press firmly until the cartridge is properly positioned

Leak check: After connection, it is mandatory to perform a leak test by applying a soapy mixture to the connection joints. Bubbles indicate a leak. Never use a flame to detect leaks (risk of explosion and burns).

Starting the burner: Turn the thermostat to the maximum position (MAX), press the gas safety valve and hold it down for 10 seconds, then quickly press the piezo ignition button several times. If the flame does not ignite, repeat the operation (the air in the piping must be evacuated first). Once the flame is lit, continue to hold the safety valve down for an additional 20 seconds.

Important notice: The device can only operate with a 250 g propane/butane gas cartridge (type I3+) with a pressure of 28-30/37 mbar. During transport or moving the refrigerator, the cartridge must never remain connected. Gas operation is strictly reserved for open and well-ventilated spaces only (garden, terrace, ventilated tent). Its use is prohibited indoors, in moving vehicles, or in closed cabins.

Question 7

Why does the temperature stay stuck at around 15°C and not go lower on the DOMETIC CoolFreeze CDF 36?

Accepted Answer

If the temperature of the DOMETIC CoolFreeze CDF 36 remains stuck around 15°C (59°F) and does not drop within the normal cooling range (-18°C to +10°C), here are the possible causes and solutions:

Checks to make:

Check the temperature setting - Press the SET button, then use the ADJUST key to check and lower the target temperature. Ensure that the setting is well below 15°C.
Check the power supply - Make sure the power cable (12/24V DC or 100-240V AC) is properly connected and that the green POWER indicator lights up. If not, check that the fuse is not blown.
Allow cooling time - If the unit has just been started, the compressor may need 30 to 60 minutes to reach the target temperature. The compressor cooling system of the CDF 36 has thermal inertia.
Check ventilation - Ensure that the unit is not overheating. Place it in the shade and avoid blocking the vents. An ambient temperature that is too high (beyond 30°C) can limit cooling performance.
Check the lid seal - A poorly closed lid allows hot air leaks, preventing effective cooling. Close the lid tightly after each opening.

If after these checks the temperature remains stuck and the unit still does not cool below 15°C, it is possible that the compressor is not functioning properly or that the cooling circuit is faulty. In this case, contact DOMETIC support.

Question 8

My refrigerator stays too cold even at the minimum thermostat setting

Accepted Answer

If your CombiCool RC 1600 EGP stays too cold even at the minimum setting, here are some points to check:

Thermostat Adjustment

Depending on the energy source used:

Electric: The thermostat has settings ranging from minimum to maximum. At the minimum setting, the cooling power is reduced, but the refrigerator can still cool down to 30°C below the ambient temperature. Try adjusting slightly above the minimum to find the balance point.
Gas: The regulator has 4 positions (MAX, MID, MIN, and off). In the MIN position, only a small flame operates. Ensure you are indeed in the MIN position and not in MAX or MID, which produce much more cooling.

Environmental Factors

Ambient Temperature: If your room is very cold (less than 16°C), the refrigerator will naturally cool more. For gas, the MIN position is recommended for ambient temperatures around 16°C.
Ventilation: Ensure that the back of the appliance has adequate ventilation and is not pressed against a wall. An obstruction of the condenser can intensify cooling.
Leveling: Check that the refrigerator is level. An inclined appliance can affect thermal regulation.

First Use

If this is the first time it is being used, the manual recommends setting the thermostat to maximum and waiting 5 hours before adjusting the temperature to your desired setting.

If the problem persists after these checks, there may be a malfunction of the thermostat or the cooling system.

Question 9

What does a white LED blinking mean?

Accepted Answer

The DOMETIC CoolFreeze CFX 28 manual does not mention a white LED. The documented indicators are:

Green Power LED: the compressor is running
Orange Power LED: the compressor is stopped
Flashing Orange Power LED: battery voltage is low (the display turns off automatically)
Flashing Red Error LED: the device is not ready to operate

A white blink may indicate a color confusion due to ambient light (what appears white may be orange or red) or an undocumented malfunction.

Recommended steps:

Check that the lid is properly closed (if open for more than 3 minutes, the interior lighting activates)
Check the battery status and available voltage
If the symptom persists, contact DOMETIC customer service

Question 10

How to perform the initial start-up of the DOMETIC CoolFreeze CDF 36?

Accepted Answer

Initial Preparation

Before using your CDF 36 for the first time, clean it inside and out with a damp cloth for hygiene reasons.

Electrical Connection

Plug the 12/24 V connection cable into the socket for direct current and connect it to the cigarette lighter or directly to a 12 V or 24 V socket.

Start-Up

Press the ON/OFF button for 3 seconds. The “POWER” indicator will then light up green and the display will show the current temperature of the device.

Installation and Ventilation

Place the device on a stable surface ensuring that the ventilation slots are not covered, so that hot air can escape properly. Avoid direct sunlight and heat sources.

Temperature Setting

Press “SET” once, then adjust the desired temperature using the “ADJUST” button.

Before Inserting Food

Wait for hot foods to cool down before placing them in the refrigerator to avoid overloading the cooling system.

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