Q: How to activate the sleep mode or night mode of the Metrobreeze Rom Smart air conditioner?

The sleep mode (night mode) of the Klarstein Metrobreeze Rom Smart air conditioner is designed for quiet and energy-saving operation during the night. You have two ways to activate it: With the remote control: Press the SLEEP button Via the control panel: Press UP (up arrow) and TIMER simultaneously What happens when you activate night mode: The air conditioner automatically switches the fan speed to LOW (low speed) to minimize noise. If the fan was already on high or medium speed, it immediately switches to low speed. During night mode, you cannot change the temperature or fan speed, even if you press the corresponding buttons. Automatic shut-off: The device automatically turns off after 7 hours of operation in night mode. You do not need to intervene; the air conditioner will manage the shut-off on its own. To deactivate night mode: Press the SLEEP button on the remote control again, or press the temperature change button on the control panel. Once deactivated, you regain access to adjust the temperature and fan speed. Helpful note: Night mode works in cooling mode. If you are in dehumidification or pure ventilation, the SLEEP button will have no effect. First switch to cooling mode (COOL) via the MODE button before activating night mode.

Q: My Kraftwerk Smart 10K air conditioner does not turn on when I press the power button

Key points to check 1. Power supply - Ensure that the device is properly plugged into a 220-240V outlet and that there is power (test the outlet with another device if necessary). 2. Mandatory resting period (very important) - Before your first use, the Kraftwerk Smart 10K contains flammable R290 refrigerant and must be transported vertically. The device MUST rest for at least 24 hours after receipt before the first start-up. Did you respect this period? 3. Full tank indicator - If the full tank indicator is flashing, the device automatically stops and cannot start. Empty the condensation tank. 4. Normal ignition - Simply press the power button. The device should automatically activate and display the ambient temperature on the screen. 5. Ambient temperature and operation - Note that the device operates differently depending on the temperature: above 24°C, it cools; below that, the fan runs at low speed. If after these checks the device still does not start, check if there is an error code displayed (E1, E2, E3, E5) indicating a system problem.

Q: Why is the cooling function not working on my Klarstein Skyscraper Ice?

Here are the checks to perform to restore cooling: 1. Check the water level in the tank The 6-liter tank must be filled for the system to operate. If the tank is empty or insufficient, the cooling function cannot operate. Ensure that the water exceeds the minimum level. 2. Activate the COOLER/HUMIDIFIER button This is the most important step: press the COOLER/HUMIDIFIER button to actually start the cooling function. This function does not activate automatically - it must be activated manually. 3. Check that the ice pack is present The Skyscraper Ice uses an ice pack to enhance its cooling. Ensure that the ice pack is in place in the device. According to the manual, it should be removed before cleaning but replaced for the cooling function. 4. Check the power supply Confirm that the device is properly plugged in and turned on with the ON/SPEED button. 5. Test the water pump If after these steps the cooling is still absent, the water pump may be defective. This issue requires a component replacement.

Question 1

How to activate the sleep mode or night mode of the Metrobreeze Rom Smart air conditioner?

Accepted Answer

The sleep mode (night mode) of the Klarstein Metrobreeze Rom Smart air conditioner is designed for quiet and energy-saving operation during the night. You have two ways to activate it:

With the remote control: Press the SLEEP button
Via the control panel: Press UP (up arrow) and TIMER simultaneously

What happens when you activate night mode: The air conditioner automatically switches the fan speed to LOW (low speed) to minimize noise. If the fan was already on high or medium speed, it immediately switches to low speed. During night mode, you cannot change the temperature or fan speed, even if you press the corresponding buttons.

Automatic shut-off: The device automatically turns off after 7 hours of operation in night mode. You do not need to intervene; the air conditioner will manage the shut-off on its own.

To deactivate night mode: Press the SLEEP button on the remote control again, or press the temperature change button on the control panel. Once deactivated, you regain access to adjust the temperature and fan speed.

Helpful note: Night mode works in cooling mode. If you are in dehumidification or pure ventilation, the SLEEP button will have no effect. First switch to cooling mode (COOL) via the MODE button before activating night mode.

Question 2

How do I adjust the humidity level of the IceWind Plus?

Accepted Answer

The Klarstein IceWind Plus does not offer manual adjustment of the humidity level in percentage. However, you can turn the humidifier function on or off using the dedicated button on the touch control panel.

To use the humidification:

Fill the water tank up to the MAX mark (do not exceed)
Keep the water level above the MIN mark for the humidification to work
Press the Humidifier button to activate the function
Change the water every 3 days

The manual recommends maintaining an indoor humidity between 40 and 50% to avoid mold problems. The device operates via evaporative cooling - the more you activate the humidification, the more the air naturally humidifies. You can refine the result by combining the humidifier with the provided cold accumulators (to be frozen beforehand).

Question 3

My Kraftwerk Smart 10K air conditioner does not turn on when I press the power button

Accepted Answer

Key points to check

1. Power supply - Ensure that the device is properly plugged into a 220-240V outlet and that there is power (test the outlet with another device if necessary).

2. Mandatory resting period (very important) - Before your first use, the Kraftwerk Smart 10K contains flammable R290 refrigerant and must be transported vertically. The device MUST rest for at least 24 hours after receipt before the first start-up. Did you respect this period?

3. Full tank indicator - If the full tank indicator is flashing, the device automatically stops and cannot start. Empty the condensation tank.

4. Normal ignition - Simply press the power button. The device should automatically activate and display the ambient temperature on the screen.

5. Ambient temperature and operation - Note that the device operates differently depending on the temperature: above 24°C, it cools; below that, the fan runs at low speed.

If after these checks the device still does not start, check if there is an error code displayed (E1, E2, E3, E5) indicating a system problem.

Question 4

Why does the fan keep running when the set temperature is reached and the compressor is off?

Accepted Answer

This is a completely normal behavior for the Iceblock Prosmart 12 air conditioner. When the set temperature is reached, the compressor indeed stops to save energy, but the fan continues to run for a few seconds or additional minutes.

Why? The fan prolongs its operation to distribute the cold air accumulated in the unit and thus cool the room more evenly. This prevents the compressor from starting and stopping too frequently and extends the lifespan of the air conditioner.

When does it stop completely? The fan will stop after expelling all the cold air. If you slightly increase the set temperature or close the doors/windows, the compressor and fan will stop more quickly as there will be no need to cool.

You can also use the night mode of your Iceblock Prosmart 12, which gradually adjusts the temperature and reduces operating cycles for quieter operation.

Question 5

Why is the cooling function not working on my Klarstein Skyscraper Ice?

Accepted Answer

Here are the checks to perform to restore cooling:

1. Check the water level in the tank

The 6-liter tank must be filled for the system to operate. If the tank is empty or insufficient, the cooling function cannot operate. Ensure that the water exceeds the minimum level.

2. Activate the COOLER/HUMIDIFIER button

This is the most important step: press the COOLER/HUMIDIFIER button to actually start the cooling function. This function does not activate automatically - it must be activated manually.

3. Check that the ice pack is present

The Skyscraper Ice uses an ice pack to enhance its cooling. Ensure that the ice pack is in place in the device. According to the manual, it should be removed before cleaning but replaced for the cooling function.

4. Check the power supply

Confirm that the device is properly plugged in and turned on with the ON/SPEED button.

5. Test the water pump

If after these steps the cooling is still absent, the water pump may be defective. This issue requires a component replacement.

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