Contact & FAQ

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Your dfreeeze Team

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What can be heated by dfreeeze?

Frequently asked questions

Installation / Assembly

  • Are there any restrictions for displaying the remaining time?

    In some cases, there may be restrictions on the display of the remaining time.

    dfreeeze is connected to the parking heater via W bus:

    • Retrofitted parking heater: no restrictions on the display of the remaining time.
    • Parking heater installed ex works: Restrictions possible.

    dfreeeze is connected to the parking heater via switch input / switch output:

    • Parking heater is controlled via the app: no restrictions as long as the maximum runtime is not limited by the vehicle.
    • Parking heater is controlled via the handheld transmitter, status request is performed via the app: It is not possible to display the remaining time in the app.

    If you are not sure which bus system is used to connect the receiver to your parking heater, please ask your local dealer.

  • Are there any restrictions for temperature request?
    A temperature request can take place in the following two cases:
     
    • If the dfreeeze uses the W bus to communicate with the parking heater: Please note that, in this case, the temperature sensor may be connected only to the parking heater or only to the dfreeeze system. It is not permitted to operate more than one temperature sensor on the W bus.
    • If the dfreeeze uses the switch output to communicate with the parking heater: Please note that, in this case, a temperature sensor must be connected to the dfreeeze system.

    If you are not sure which bus system is used to connect the receiver to your parking heater, please ask your local dealer.

  • How can I test the app before buying it?

    Please contact us.

    You can reach our support team at: dfreeeze [at] digades.de

  • My parking heater is not reacting. Why is that?

    First, please check whether your receiver was already installed in the vehicle when you performed the initialisation.

    Initialisation was successful if the status display shows the message “Initialisation successful software version ############”.

    If the receiver has already been connected but you are still not receiving the message, that may be because the receiver cannot connect to the mobile phone network. In this case you should move your vehicle to a location with better reception. Then perform the initialisation again.

  • The app does not recognise my installed receiver!

    Once you have set up your vehicle in the app (see section 3.3 in the user manual), the status display should show the following message: “Initialisation performed software version xxxxxxxxxx”. This indicates that your dfreeeze receiver was installed correctly and has mobile phone reception.

    Please note that initialisation can only be successful if the receiver has mobile phone reception and a power supply.

  • When is manual mode switching possible?

    Mode switching (heating/cooling/automatic) may be specified by the vehicle. In this case, manual switching is not possible.
    The dfreeeze system is connected to the parking heater via W bus:

    • Retrofitted parking heater: Mode switching is possible
    • Parking heater installed ex works: vehicle-dependent

    The dfreeeze system is connected to the parking heater via switch input / switch output:

    • No manual adjustments possible in the app

    If you are not sure which bus system is used to connect the receiver to your parking heater, please ask your local dealer.