- The device is correctly connected to the main network, with all manual or automatic circuit protection and switching devices properly connected, without interruptions such as blown fuses, open switches, etc.
- Is the thermostat set correctly for the desired conditions?
- Is the fan switch or switch in the correct position?
- Clean the cabinets with a soft cloth or cloth dipped in warm water and mild soap. Do not use solvents, carbon tetrachloride, waxes containing solvent or alcohol to clean the plastic parts.
- Check all cables for deterioration and all contacts, electrical terminals for tightness and corrosion.
- When assembling, make sure the units are firmly installed.
- Make sure that all controls are working correctly and that the operation of the device is normal. Vibrations can cause unwanted noise.
- Check the drain hose for blockages or dents. This can cause an overflow in the tray and consequent leakage of condensate.
