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Its normal, this is to allow proper airflow to the compressor. The wires you see connect the compressor to the unit. Do not cover it & leave 5 inches away from wall for proper ventilation. Mary II Insignia Products II Please visit https://www.insigniaproducts.com/
Sorry, there was a problem. Please try again later.I feel the back is open to let out hot air, mine works very fine.
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