Why is my ceiling cassette shutting down with blinking lights? May 21, 2020 15:56 Please review the following chart including all the possible error codes that your cassette unit can illustrate. Related articles Installation Manual, Owner's Manual, Remote Control Manual for Model(s): SENA-09HF/ICZ, SENA-12HF/ICZ, SENA-18HF/ICZ, SENA-24HF/ICZ for Ceiling Cassette Models Why is my Mini Split Stuck in Defrost? How can I test my indoor sensors? Installation Manual, Owner's Manual, Remote Control Manual for Model(s): SENA-09HF/Z, SENA-12HF/Z, SENA-18HF/Z, SENA-24HF/Z, SENA-36HF/Z for AURA Series Models Why is there frost build up on the outdoor unit? Comments 0 comments Please sign in to leave a comment.