10
Electronic Controller
Service Manual
SKOPE OD400
‐
2
Alarms
The following table explains messages that the electronic controller displays and related alarms.
Alarms signal unexpected operational changes in the chiller and stop when action is taken to
resolve the problem.
Controller alarms
Code
Display LCD
Buzzer
Alarm Description Initial Action
Final Action
Flashing
on
Product HIGH
temperature alarm
(auto reset)
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.
If alarm
persists,
contact
SKOPE.
Flashing
on
Product LOW
temperature alarm
(auto reset)
Flashing
off
Refrigeration system
high temperature
pre-warning (auto
reset)
1. Clean the condenser coil.
2. Check refrigeration ventilation.
Ensure clear airpath at the top
and front of the cabinet (to
extract hot air). A minimum of
200mm clear space is required
above and in front of the
refrigeration unit.
3. Ensure the cabinet is installed
in a suitable environment.
4. Unplug cabinet from the power
supply for 1 minute, then
reconnect to power supply.
Flashing
on
Refrigeration system
high
temperature shutdown
(manual reset)
Flashing
off
Control probe fault
(also flashes ‘rE’)
Unplug cabinet from the power
supply for 1 minute, then
reconnect to power supply.
Flashing
off
Evaporator probe fault
Flashing
off
Condenser probe fault
None
off
Defrost over-time
limit. Will reset if next
defrost is completed
within time-frame
allowed by dP1 (60
mins). If continues,
investigate why
defrost is inefficient.
Flashing
off
Controller E prom
error
Flashing
off
Controller E prom
error
