Nibe S2125 - Page 43

May be due toDescription existing alarmAlarm text on the displayAlarms
S-series
Alarms
VVM/SMO
(S2125)
Poor airflow, e.g. because of
leaves, snow or ice.
10 repeated defrostings according
to the protection conditions.
Recurring
safety defr.
291341 (6)
Lack of refrigerant.
Lack of refrigerant.5 repeated low pressure alarm
within 4 hours.
Recurring low pressure294344 (72)
Blocked expansion valve.
Disruption in the refrigerant
circuit.
Clogged particle filter, air or
stoppage in the heating me-
dium flow.
5 repeated high pressure alarm
within 4 hours.
Recurring high pressure295346 (74)
Poor system pressure.
The inverter is not compat-
ible
Initiation fault, inverter.
The inverter is not compatible
Unspecified faults314400 (207)
400 (209)
Configuration file missing.400 (211)
Charge error configuration.400 (213)
Poor heating medium flow.2 repeated LP/HP/FQ alarms within
2.5 hours.
Persistent pressure
switch or over-temperat-
ure alarm.
322425 (108)
Lack of refrigerant.
For FQ14, the following ap-
plies: High temperature
120 °C compressor peak.
Disruption in supply voltage.Temporary fault in inverter, 2 times
within 60 minutes.
Safety stop, inverter323427 (110)
Disruption in supply voltage.Temporary fault in inverter, 3 times
within 2 hours.
Safety stop, inverter324429 (112)
Disruption in supply voltage.Temporary fault in inverter, 3 times
within 2 hours or continuously for 1
hour.
Mains disturbance328437 (120)
Incorrect connection in the
inverter’s terminal block X5.
Poor cooling of inverter.The inverter has temporarily reached
max working temperature, due to
poor cooling 3 times within 2 hours
or continuously for 1 hour.
Overheated inverter329439 (122)
Defective inverter.
Too high current to inverter.Current to inverter too high, 3 times
within 2 hours or continuously for 1
hour.
Current too high330441 (124)
Low supply voltage.
Poor cooling of inverter.The inverter has temporarily reached
max working temperature, due to
poor cooling 3 times within 2 hours
or continuously for 1 hour.
Overheated inverter331443 (126)
Defective inverter.
Disruption in supply voltage.Compressor phase is missing, 3
times within 2 hours or continuously
for 1 minute.
Phase failure333447 (130)
Incorrectly connected com-
pressor cable.
Defective inverter.Compressor does not start when
required, 3 times within 2 hours.
Failed compressor starts334449 (132)
Defective compressor.
Disruption in supply voltage.The output current from the inverter
to the compressor has been tempor-
arily too high 3 times within 2 hours
or continuously for 1 hour.
High current load, com-
pressor
336453 (136)
Poor heating medium flow.
Defective compressor.
43Chapter 8 | Disturbances in comfortNIBE S2125