The A/C unit in 161 froze up about a month ago. Maintenance came over and said it just needed some freon. It has worked fine since then but the handler is frozen again right now. May 16, 2019 5:14 am. I turned the unit off so it can defrost. Please have maintenance come over as soon as they get in Thursday morning. I will try to be awake waiting for them but if I am not please tell them to come in and repair it. My cat and I will likely be asleep locked in the bedroom. Thank you.