Troubleshooting can be carried out in whole or in part using these instructions. It is important that you only carry out troubleshooting where you have sufficient knowledge and experience, especially when troubleshooting where the unit is live. Acetec accepts no responsibility for personal injury or damage to property during troubleshooting in accordance with these instructions.
Alarm 3 Supply air sensor, flashing 3 on the control panel:
- Switch off power supply to unit
- Check that the supply air sensor is placed in the supply air duct
- Check sensor cable for damage between sensor and unit
- Check connection and scaling on terminals 41 - 42, press orange button to disconnect cable, check scaling which should be approx. 7-10 mm, wrap together, press orange button and reassemble cable.