Bulletin 100-50-11.1 –
Page 7
Indicator
Action
Status
Green/PWR
LED On
Indicates the unit is powered
Yellow/VLV
LED Off
Valve is off or at 0% open
Yellow/VLV
LED On
Valve is on or at 100% open
Yellow/VLV
LED blinking periodically
Number of blinks indicates % of open. One blink for every ten percent of open.
Only applies to the SCS-SB.
Yellow/VLV
LED blinking constantly
Fast blinking indicates a valve connection issue.
Blue/BT
LED blinking
Indicates the unit is advertising for Bluetooth.
The unit is visible to mobile devices at this point.
Blue/BT
LED On
Indicates the unit is connected to a mobile device through Bluetooth.
Red/ALM
LED On
Indicates that an alarm is active. See the Alarms Section for more details.
Alarm
Description
Transducer Voltage Low
Voltage on the pressure transducer is very low, indicating a potential issue with the
connection or sensor.
Transducer Voltage Out of Range
Voltage on the pressure transducer is outside the expected range for normal operation.
This may indicate a wiring issue or problem with the sensor.
Transducer Not Connected
This indicates the controller is not able to detect the pressure transducer.
This typically points to a connection issue with the pressure transducer.
Coil Outlet Resistance Low
This indicates the resistance for the coil outlet thermistor is out of range and is low.
This is typically cause by a short circuit on the thermistor.
Coil Outlet Resistance High
This indicates the resistance for the coil outlet thermistor is out of range and is high.
This is typically cause by a connection problem or open circuit with the thermistor.
EEV No Continuity
This indicates that there is a connection problem with the stepper valve.
This may also be caused by a damaged/defective valve.
EEV Overcurrent
This indicates the current for the pulse or stepper valve exceeds the expected range.
This is typically due to a connection/wiring problem or a damaged/defective valve.
Low Superheat
This indicates that the superheat value is trending low (below 3°F / 1.67°C over the last
hour).
High Superheat
This indicates that the superheat value is trending high (above 50°F / 27.78°C over the
last hour).
5. LED Indicators
The controller has 4 LED indicators that allow you to quickly see some basic information about the controller
status as shown in the table below.
6. Alarms
The controller has the capability to detect issues and alert the user of any issue it encounters via alarms.
When any alarm is active, the red ALM LED will be on. To see what alarms are active, connect to the controller
through a mobile device. In the app, there is an alarm bell icon on the top right of the screen. Tapping this
icon moves to the alarm screen. The alarm screen will list all possible alarms. Currently triggered alarms will
be highlighted. See the Setup Section for more details on how to connect to the device. The table below
describes the possible alarms.
