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Twinboost422

Twinboost

422

Try this solution

Try the following

  1. Assure that air heater is switched off.

  2. Wait 15 – 30 minutes until device has has cooled down.

  3. Check if all air inlet grilles and the cabin air ducting to the device are not blocked.

  4. Restart air heater.

Possible cause: Air heater overheat.

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