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 How can I test my indoor sensors? 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 there frost build up on the outdoor unit? Why is my Mini Split Stuck in Defrost? 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 Comments 0 comments Please sign in to leave a comment.