Everlasting AL Error Code

What does Everlasting AL mean?

AL is the low-temperature alarm. The manual states the cabinet temperature has exceeded the minimum set value: the measured temperature has fallen below the configured low limit (parameter A1) for longer than the allowed out-of-range time (A7). The controller signals the condition and, when it is a HACCP event, logs it to the LS folder with the minimum temperature reached and the alarm duration.

Symptoms

• AL shown on the display alternating with the cabinet temperature
• Alarm LED lit and buzzer sounding
• Cabinet temperature reading below the configured set point
• A HACCP low-temperature event recorded in the alarm history

Common causes

• Cabinet running colder than the configured low limit (A1)
• Set point or low-alarm threshold set too high relative to operation
• Refrigeration overshooting, for example after overcooling
• Cell probe placement or fault reporting an artificially low value

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Diagnostic steps

1. Read the temperature

   Note the displayed cabinet temperature shown alongside AL and compare it to the configured set point and low limit (A1).

2. Review HACCP history

   Open the LS folder to see the minimum temperature reached and the alarm duration so you understand how far and how long it went out of range.

3. Check recent functions

   Confirm an overcooling or energy-saving function is not driving the temperature below the alarm limit unexpectedly.

4. Verify set point and limits

   Check that the set point and the A1 low-alarm threshold are configured correctly for the product being stored.

5. Escalate if unexplained

   If the cabinet genuinely runs too cold with no parameter cause, contact technical support to investigate the refrigeration control.

When to call a professional

Contact technical support if AL keeps recurring with no configuration explanation, because persistent below-limit operation can indicate a refrigeration control problem the manual reserves for authorized service. Parameter and refrigeration adjustments beyond confirming the set point and reviewing the HACCP log fall under extraordinary maintenance, which the manual restricts to specialist personnel authorized by the manufacturer.