Air Craft: Indoor Air Comfort on X: "Anyone else having L4-00 error issues due to the cooling tube on the main PCB of the Daikin Altherma HT-H split? All three of our
Daikin 1738447 Printed Circuit Assembly (Control
Daikin Altherma Main Control PCB 5015658 2P392975-20D EHYHBH05AAV3U