7.7. ALARMS/ERRORS
ALARM AbSENCE COMuNICATION bETWEEN bASE AND kEYbOARD
===> CONTACT TECHNICAL ASSISTANCE
Verify connections, ignite and extinguish the machine detaching the feeding
HIGH TEMPERATuRE ALARM
During the positive (negative), the alarm part when the temperature cabinet the values sets up.
Alarm code AL1 will flash on DISPLAY 1.
The buzzer sounds but can be stopped by pressing a button. When the temperature falls
by below the alarm threshold, the alarm is automatically cancelled.
LOW TEMPERATuRE ALARM
During the positive (negative), the alarm part when the temperature cabinet the values sets up.
Alarm code AL2 will flash on DISPLAY 1.
The buzzer sounds, but can be stopped by pressing a button. When the temperature rises
above the alarm threshold, the alarm is automatically cancelled.
DOOR OPEN ALARM
If the door is open for more than two minutes after the start of the blast chill/shock freeze, the
compressor stops and the code AL3 will flash on DISPLAY 1.
PRESSuRE SWITCH/ELECTRIC ALARM ===> CONTACT TECHNICAL ASSISTANCE
When pressure switch alarm AL4 is activated, the blast chill cycle in progress will be immediately
terminated.
TIME-OuT ALARM
If the blast chill or shock freeze phase in progress does not terminate within the set time, code AL5
will flash on DISPLAY 1.
bLACkOuT ALARM
If a blackout occurs during a blast chill cycle, the machine remembers the cycle and phase it was
performing when it switched off. In cycles with core probes, the machine also remembers which
probes were inserted or whether it is necessary to perform a probe insertion test.
Blast chill time tolerance is 10 minutes. Code AL7 will flash on DISPLAY 1. The buzzer sounds but can
be stopped by pressing a button. If the button is pressed again, the display disappears.
AbINET PRObE ALARM ===> CONTACT TECHNICAL ASSISTANCE
The cabinet probe measures the temperature of the cabinet, which is indicated on DISPLAY 2.
If the probe is defective, a cabinet probe alarm and buzzer are activated and error code
ER1 flashes on the DISPLAY 1. The buzzer sounds, but can be stopped by pressing a button.
Once the fault is remedied, the alarm cancels automatically.
- In the case of a faulty cabinet probe, it is nevertheless possible to start or continue a blast chill pro-
gramme with timer.
- A set temperature blast chill programme not yet started, will convert the setting to time.
- If the core probe is not inserted, a set temperature blast chill programme in progress will convert
the setting to time and the compressor check will be performed on the core probe instead of the
cabinet probe.
- A set temperature blast chill programme in progress with core probe inserted, turns the compressor
on and off on the basis of times memorised previously in blast chill or conversation phases.
CORE PRObE ALARM ===> CONTACT TECHNICAL ASSISTANCE
The core probe is used for reading core temperature in blast chill cycles. A fault in the core probe
causes an alarm only if a set temperature blast chill cycle is in progress. In this case the cycle auto
matically coverts the setting to time and the buzzer is activated. Alarm code ER2 will flash on DIS-
PLAY 1. The buzzer sounds, but can be stopped by pressing the button. The alarm code dis-
play disappears by pressing a button.
EN - 31