Replace cold control
Usually a bad thermostat, but it can be a freon system problem, or a problem with your evaporator fan motor. These are problems that a good Sub Zero technician needs to repair, especially if you have a system problem, since a system problem is under a 6 to 12 year warrantee. Make sure that the company you call is a Sub-Zero warrantee company. Good Luck, Appliance Specialists
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