Fault Codes / Mitsubishi Heavy / E7
KX / FD — E7 is a sensor fault at the indoor return/suction sensor (ThIA) — open or short circuit, or poor PCB connector. NOT 'outdoor unit: signal loss from indoor unit'.
Mitsubishi Heavy E7: E7 is a sensor fault at the indoor return/suction sensor (ThIA) — open or short circuit, or poor PCB connector. NOT 'outdoor unit: signal loss from indoor unit'. This fault noticeably affects operation.
Source: Mitsubishi Heavy resmi servis kılavuzu — DÜZELTİLDİ: Mitsubishi Heavy Industries Air Conditioning Error Codes – R410A Systems (masterxoloda.ru/files/mitsu_heavy/kod_oshibki_mitsubishi_heavy.pdf), page 2, E7 row: "Indoor unit return sensor [ThIA] defective (resistance is open circuit or closed circuit). Poor connection of sensor con…
Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.
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