Perlick Refrigerator Error Code LA

LA stands for minimum temperature alarm on a Perlick refrigerator. It means the cabinet temperature has dropped below the lowest allowable threshold set in the controller. This is a protective alert to warn you that the unit is running colder than intended, which can potentially freeze stored contents. Common causes include a cold installation environment, a faulty evaporator probe, or a compressor that is not cycling off properly.

Continued use during an LA alarm carries the risk of freezing whatever is stored inside the cabinet. For units storing beverages, certain produce, or other temperature-sensitive products, this can cause damage or spoilage. It is best to investigate and resolve the cause of the alarm before relying on the unit for critical storage.

A reset may clear the LA alarm temporarily, but the code will return if the underlying cause has not been corrected. If the cabinet temperature is still below the minimum threshold or the evaporator probe is still reading inaccurately, the controller will trigger the alarm again. Resetting should only be done after diagnosing and addressing the root cause to confirm the repair was successful.

Start by checking whether the ambient temperature in the room is colder than the controller set point, as this alone can cause overcooling. Next, measure the evaporator probe resistance to determine if the sensor is reading accurately. Also confirm that the compressor shuts off once the cabinet reaches its set point temperature. Depending on what you find, the fix may involve relocating the unit, replacing the evaporator probe, or servicing the controller.

Repair costs vary widely depending on the root cause. If the issue is simply an installation environment that is too cold, no parts are needed and the fix is free. An evaporator probe replacement typically runs in the range of $30 to $80 for the part, plus labor. Controller replacement tends to be more expensive, often ranging from $100 to $300 or more for the part depending on the model, plus any diagnostic and labor fees from a technician.