13
SKOPE TME-N ActiveCore
Electronic Controller
Service Manual
Faults and Alarms
The following table explains faults and alarms that the electronic controller may log and display.
If a fault occurs, the fault - alarm indicator is lit on the controller faceplate, but no message is
displayed. Faults do not affect product temperature, and require no action from the shop owner.
Alarms are logged and the alarm message is displayed on the controller faceplate. Alarms may
result in abnormal product temperature.
Some faults and alarms can be cleared by the shop owner, and others can only be cleared by a
service technician.
If the cooler is connected to the power supply and has warm product, check the SCS Connect Field
App for active fault or alarm, and investigate. If the cooler does not have an active fault or alarm,
check the app statistics to determine if and when the controller signalled a fault or alarm.
Refer to the tables below for faults and alarm descriptions and possible causes and actions. The
service tech type column refers to the service tech skill level required to complete a task. Refer to
the SKOPE HC Service Policy for service tech type details.
Faults
Alarms
Description
Service tech
type
Possible root cause
Door left open.
The door has been open for several minutes.
1, 2, 3, 4
- door not self closing (torsion fault)
- door switch / circuit
- controller
Excessive door open counts
Over-voltage protection
The maximum allowable mains supply voltage has
been exceeded. The cabinet has temporarily shut
down to prevent damage and will restart once the
supply voltage decreases.
1, 2, 3, 4
- should be a one off; if continues:
- line voltage / rural
- voltage setting parameter
- controller
Under-voltage protection
The mains supply voltage has dropped below the
minimum allowable level. The cabinet has temporarily
shut down to prevent damage and will restart once the
supply voltage increases.
1, 2, 3, 4
- should be a one off; if continues:
- power supply overloaded / multibox
- line voltage / rural.
- voltage setting parameter
- controller
High condensing temperature protection
The system was operating at an elevated temperature
and has temporarily shut down to prevent damage.
Extended operation in this condition may result in
ALARM 15, increased energy consumption and a
reduction in cabinet life. This alarm may be caused by
very high ambient temperature.
2, 3, 4
NO swap unit required
- condenser not clean
- poor installation / ventilation
- condenser fan motor / blade
- controller
Excessive compressor cycling protection
The system has been turning on and off too frequently.
2, 3, 4
Take spare unit in case refrigeration system fault.
- condenser blocked
- poor installation / ventilation
- cabinet / unit gasket seals leaking
- door not self closing / gasket leaking
- product; hot / blocking cabinet airflow
- overloaded from excess door openings /
ambient
- fan motor / blade (condenser / Evap)
- controller
- compressor / gas leak = SWAP unit
Code Description
Service tech
type
Possible root cause
dor Door left open.
The door has been open for several minutes.
Will revert to door left open FAULT after 10
minutes (see faults table on previous page).
1, 2, 3, 4
- door not self closing (torsion fault)
- door switch / circuit
- controller
