The booth feels warm or stuffy

Help for phone booth SOLO - Option 1

Before we dive into troubleshooting, we would first like to briefly explain how the ventilation system in the phone booth SOLO works.

A fan inside the ceiling element of the SOLO creates an airflow cycle that draws air in through the ventilation slots in the floor and releases it again through the fan in the ceiling. This ensures that the air inside the booth is completely exchanged once per minute and that the CO2 level remains stable.

This means there is an exchange with the surrounding air, but no active cooling of the air. Only an air conditioning system can do that.

The phone booth may feel warmer when the materials inside heat up due to body heat, laptops and similar devices.

The most important factor is the CO2 level. During the development of the phone booth SOLO, special attention was paid to keeping CO2 levels as stable as possible. Normally, the CO2 level rises slightly and almost imperceptibly at the beginning of use and then stabilizes at a value only slightly above the surrounding environment.

If something in your ventilation system is defective, this naturally changes. As soon as the air stops circulating, the enclosed phone booth becomes warm due to body heat and stuffy because of increased CO2 levels.

Please therefore check the following:

1. Is the fan in the ceiling element working?
   If not, this article may help you.
   ‍
2. Are all ventilation slots unobstructed?
   If floor or ceiling ventilation slots are blocked, the air can no longer circulate properly. Please always keep them clear. Also check whether anything on top of the booth is covering the fan grille. If the SOLO is standing on a carpet, a thick pile carpet may also interfere with airflow.
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3. Is the SOLO used regularly?
   The ventilation only runs during use. If the booth is not used for extended periods, we recommend leaving the door open for a few minutes occasionally so the air inside can circulate properly.
   ‍
4. Is the SOLO exposed to direct sunlight?
   Direct sunlight can create heat buildup that the ventilation system can no longer compensate for. In this case, we recommend placing your phone booth in a different location.

Were you able to identify the cause? Wonderful.

Still need help? Together, we’ll find a solution. Please send us a message here including the serial number(?) of your phone booth and a description of the problem.

We’ll get back to you shortly.

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Help for phone booth SOLO - Option 2

Before we dive into troubleshooting, we would first like to briefly explain how the ventilation system in the phone booth SOLO works.

A fan inside the ceiling element of the SOLO creates an airflow cycle that draws air in through the ventilation slots in the floor and releases it again through the fan in the ceiling. This ensures that the air inside the booth is completely exchanged once per minute and that the CO2 level remains stable.

This means there is an exchange with the surrounding air, but no active cooling of the air. Only an air conditioning system can do that.

The phone booth may feel warmer when the materials inside heat up due to body heat, laptops and similar devices.

The most important factor is the CO2 level. During the development of the phone booth SOLO, special attention was paid to keeping CO2 levels as stable as possible. Normally, the CO2 level rises slightly and almost imperceptibly at the beginning of use and then stabilizes at a value only slightly above the surrounding environment.

If something in your ventilation system is defective, this naturally changes. As soon as the air stops circulating, the enclosed phone booth becomes warm due to body heat and stuffy because of increased CO2 levels.

Please therefore check the following:

1. Is the fan in the ceiling element working?
   If not, this article may help you.
   ‍
2. Are all ventilation slots unobstructed?
   If floor or ceiling ventilation slots are blocked, the air can no longer circulate properly. Please always keep them clear. Also check whether anything on top of the booth is covering the fan grille. If the SOLO is standing on a carpet, a thick pile carpet may also interfere with airflow.
   ‍
3. Is the SOLO used regularly?
   The ventilation only runs during use. If the booth is not used for extended periods, we recommend leaving the door open for a few minutes occasionally so the air inside can circulate properly.
   ‍
4. Is the SOLO exposed to direct sunlight?
   Direct sunlight can create heat buildup that the ventilation system can no longer compensate for. In this case, we recommend placing your phone booth in a different location.

If this still has not solved the issue, you can check the settings of your fan as follows:

1. Disconnect the power
   To safely touch all parts of the ventilation system, please first disconnect your phone booth SOLO from the power supply. Simply unplug the booth.
   ‍
2. Remove the fan element
   The ventilation element is located in the ceiling section of your phone booth SOLO and can easily be accessed from above. Loosen the four screws in the corners and carefully lift the entire element upwards.
   ‍
3. Check the settings
   On the permanently installed greenish control element, you will see a black sliding switch. It has three positions: Low, Medium, High. If possible, select a higher setting.
   ‍
4. Reinstall the fan element
   Have you selected the appropriate setting? You can now reinstall the element.
   ‍
5. Test
   Reconnect the SOLO to the power supply and trigger the sensor.
   Does it feel better now? Wonderful!

Were you able to identify the cause? Wonderful.

Still need help? Together, we’ll find a solution. Please send us a message here including the serial number(?) of your phone booth and a description of the problem.

We’ll get back to you shortly.

‍

‍

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‍

‍

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‍

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Help for phone booth SOLO - Option 3

Before we dive into troubleshooting, we would first like to briefly explain how the ventilation system in the phone booth SOLO works.

A fan inside the ceiling element of the SOLO creates an airflow cycle that draws air in through the ventilation slots in the floor and releases it again through the fan in the ceiling. This ensures that the air inside the booth is completely exchanged once per minute and that the CO2 level remains stable.

This means there is an exchange with the surrounding air, but no active cooling of the air. Only an air conditioning system can do that.

The phone booth may feel warmer when the materials inside heat up due to body heat, laptops and similar devices.

The most important factor is the CO2 level. During the development of the phone booth SOLO, special attention was paid to keeping CO2 levels as stable as possible. Normally, the CO2 level rises slightly and almost imperceptibly at the beginning of use and then stabilizes at a value only slightly above the surrounding environment.

If something in your ventilation system is defective, this naturally changes. As soon as the air stops circulating, the enclosed phone booth becomes warm due to body heat and stuffy because of increased CO2 levels.

Please therefore check the following:

1. Is the fan in the ceiling element working?
   If not, this article may help you.
   ‍
2. Are all ventilation slots unobstructed?
   If floor or ceiling ventilation slots are blocked, the air can no longer circulate properly. Please always keep them clear. Also check whether anything on top of the booth is covering the fan grille. If the SOLO is standing on a carpet, a thick pile carpet may also interfere with airflow.
   ‍
3. Is the SOLO used regularly?
   The ventilation only runs during use. If the booth is not used for extended periods, we recommend leaving the door open for a few minutes occasionally so the air inside can circulate properly.
   ‍
4. Is the SOLO exposed to direct sunlight?
   Direct sunlight can create heat buildup that the ventilation system can no longer compensate for. In this case, we recommend placing your phone booth in a different location.

If this still has not solved the issue, you can check the settings of your fan as follows:

1. Disconnect the power
   To safely touch all parts of the ventilation system, please first disconnect your phone booth SOLO from the power supply. Simply unplug the booth.
   ‍
2. Remove the fan element
   The ventilation element is located in the ceiling section of your phone booth SOLO and can easily be accessed from above. Loosen the four screws in the corners and carefully lift the entire element upwards.
   ‍
3. Check the settings
   On the underside of the white element, you will find a black sliding switch on the right-hand side. It has three positions: 80%, 90%, 100%. If possible, select a higher setting to increase air circulation speed.
   ‍
4. Reinstall the fan element
   Have you selected the appropriate setting? You can now reinstall the element.
   ‍
5. Test
   Reconnect the SOLO to the power supply and trigger the sensor.
   Does it feel better now? Wonderful!

Were you able to identify the cause? Wonderful.

Still need help? Together, we’ll find a solution. Please send us a message here including the serial number(?) of your phone booth and a description of the problem.

We’ll get back to you shortly.

‍

‍

‍

‍

‍

‍

‍

‍

‍

‍

Help for phone booth SOLO - Option 4

Before we dive into troubleshooting, we would first like to briefly explain how the ventilation system in the phone booth SOLO works.

A fan inside the ceiling element of the SOLO creates an airflow cycle that draws air in through the ventilation slots in the floor and releases it again through the fan in the ceiling. This ensures that the air inside the booth is completely exchanged once per minute and that the CO2 level remains stable.

This means there is an exchange with the surrounding air, but no active cooling of the air. Only an air conditioning system can do that.

The phone booth may feel warmer when the materials inside heat up due to body heat, laptops and similar devices.

The most important factor is the CO2 level. During the development of the phone booth SOLO, special attention was paid to keeping CO2 levels as stable as possible. Normally, the CO2 level rises slightly and almost imperceptibly at the beginning of use and then stabilizes at a value only slightly above the surrounding environment.

If something in your ventilation system is defective, this naturally changes. As soon as the air stops circulating, the enclosed phone booth becomes warm due to body heat and stuffy because of increased CO2 levels.

Please therefore check the following:

1. Is the fan in the ceiling element working?
   If not, this article may help you.
   ‍
2. Are all ventilation slots unobstructed?
   If floor or ceiling ventilation slots are blocked, the air can no longer circulate properly. Please always keep them clear. Also check whether anything on top of the booth is covering the fan grille. If the SOLO is standing on a carpet, a thick pile carpet may also interfere with airflow.
   ‍
3. Is the SOLO used regularly?
   The ventilation only runs during use. If the booth is not used for extended periods, we recommend leaving the door open for a few minutes occasionally so the air inside can circulate properly.
   ‍
4. Is the SOLO exposed to direct sunlight?
   Direct sunlight can create heat buildup that the ventilation system can no longer compensate for. In this case, we recommend placing your phone booth in a different location.

If this still has not solved the issue, you can check the settings of your fan as follows:

1. Disconnect the power
   To safely touch all parts of the ventilation system, please first disconnect your phone booth SOLO from the power supply. Simply unplug the booth.
   ‍
2. Remove the fan element
   The ventilation element is located in the ceiling section of your phone booth SOLO and can easily be accessed from above. Loosen the four screws in the corners and carefully lift the entire element upwards.
   ‍
3. Remove the resistor cable
   Looking from the booth door toward the fan opening, you will see the fan cable. Remove it from the loop and locate the integrated resistor cable. This removable cable section can be disconnected to increase the fan speed and improve air circulation.
   ‍
4. Reinstall the fan
   After removing the resistor cable, reconnect the fan cable to the power source and place the cable back into the loop. You can now reinstall the complete element.
   ‍
5. Test
   Reconnect the SOLO to the power supply and trigger the sensor.
   Does it feel better now? Wonderful!

Were you able to identify the cause? Wonderful.

Still need help? Together, we’ll find a solution. Please send us a message here including the serial number(?) of your phone booth and a description of the problem.

We’ll get back to you shortly.