Kaisai · Split air conditioners · Kaisai FLY (KWX) wall-mounted split
E7Indoor PCB / Display board communication error(for some models)
Name in the manufacturer's documentation (service manual): Indoor PCB / Display board communication error(for some models)
[1]
This page only quotes the original English documentation. A plain-language explanation has not been written yet, so the page is not indexed by search engines.
For technicians
The English documentation lists this code only by its name.
⚠ Work on refrigerant circuits, mains electricity and PV DC wiring is for qualified technicians only.
The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →
Sources
Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.
- [1] KAISAI ERROR CODES and troubleshooting 2022 (EN, common code list and diagrams for Kaisai air conditioners) (759-KAISAI-ERROR-CODES-and-troubleshooting-2022) , p. 1 manufacturer document – copy from a distributor quote verified
Indoor PCB / Display board communication error(for some models)