What A12 / A13 Alarm Limits Means
A12 and A13 are settings rather than problems: A12 is the low alarm limit and A13 the high alarm limit on the Profi controller. They define the window outside which the cabinet raises a temperature alarm, and they sit in the alarm settings section of the menu alongside the alarm delay.
Common Causes of A12 / A13 Alarm Limits
- The limits were adjusted for a particular product or storage program
- Default limits that no longer match what the cabinet is being used for
🔧 One Safe Check You Can Try
Read them before changing them, because an alarm limit set too wide is the most common reason a commercial cabinet drifts warm without anyone being told. A limit set too tight produces nuisance alarms during loading, which staff then start ignoring — which is the worse outcome of the two.
⚠ Why You Shouldn't Go Further Than That
- Alarm limits are the difference between an alarm that means something and one that everybody mutes, and setting them well takes a view of what the cabinet actually holds.
- These settings sit next to service-only items in the same menu tree, which is a reason to know exactly where you are before pressing anything.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.