14
SKOPE CAREL ir33 Controller
Service Manual
SKOPE VF Series
Alarms
The following table explains messages that the electronic controller displays and related alarms.
Alarms signal unexpected operational changes in the freezer and stop when action is taken to
resolve the problem.
Controller alarms
Code
Display
Icon
Alarm
Description
Action
Flashing
Product HIGH
temperature alarm
1. Check the cabinet product loading to ensure ventilation slots are not
blocked and that product does not overhang the shelves.
2. Ensure the cabinet is installed with good refrigeration unit ventilation.
3. Check and clean the condenser coil.
4. Unplug cabinet from the power supply for 1 minute, then reconnect to
power supply.
The alarm will automatically reset once the product has returned to
temperature specification.
Flashing
Product LOW
temperature alarm
Door open alarm. Door
has been open for
longer than 2 minutes.
Flashes between
cabinet temperature
and
dor
alarm.
1. Check door is closed.
2. Check door switch operation and wiring.
High ambient alarm
1. Check ventilation and operating conditions. Refer to ventilation label
to ensure correct ventilation.
High pressure
alarm
1. Check and clean the condenser coil.
2. Check condenser fan operation.
Flashing
Control probe fault
1. Check probe connection and wiring.
2. Check probe resistance.
3. Replace probe.
Flashing
Evaporator probe
fault
Flashing
Ambient probe fault
None
Defrost over-time
limit
1. Check defrost elements are operating correctly.
Flashing
Real-time clock
fault
1. Unplug cabinet from the power supply for 1 minute, then reconnect to
power supply.
2. Replace controller.
Flashing
Controller E prom
error
Flashing
Controller E prom
error
None
Start defrost
request
None
None
End defrost request
