May be due to
Description existing alarm
Alarm text on the dis-
play
(Alarm)
Alarm
Poor flow.
5 repeated low low-pressure sensor
alarm within 4 hours.
Low lp cooling
80
156
Fan blocked or not connected.
5 unsuccessful start attempt.
Fan alarm from heat
pump
182
224
Connection, supply line return line
switched around,
Return is hotter than flow.
Exchange Sensors
flow / return
8
225
Open-circuit or short-circuit on
sensor input.
Sensor fault BT3.
Sensor fault BT12.
Sensor fault from heat
pump
34
36
227
Sensor fault BT14.
38
Sensor fault BT15.
40
Sensor fault BT16.
42
Sensor fault BT17.
44
Sensor fault BT28.
46
Sensor fault BT81.
48
Sensor fault BP8.
50
Sensor fault BP9.
52
Sensor fault BP11.
54
Sensor fault BT84.
56
System temperature and/or flow too
low.
Defrosting could not be completed
10 times in a row.
Unsuccessful defrosting
2
228
Poor flow, poor heat transfer.
Operation is stopped from the indoor
section after less than 5 minutes.
Short run times for com-
pressor
4
229
Refrigerant leakage.
3 repeated high discharge sensor
alarm within 4 hours.
Hot gas alarm
78
230
Refrigerant leakage, blocked expan-
sion valve.
5 repeated low evaporation sensor
alarm within 4 hours.
Low evaporation temp
76
232
Inverter unpowered or broken.
5 communication fault with inverter.
Communication fault
with Inverter.
204
264
Poor airflow, because of leaves, dirt,
snow or ice.
10 repeated defrostings according
to the protection conditions.
Recurring safety defrost-
ing
6
341
Refrigerant leakage, blocked expan-
sion valve.
5 repeated low pressure alarm within
4 hours.
Recurring low pressure
72
344
Stop the heating medium flow, poor
system pressure, blocked expansion
valve.
5 repeated high pressure alarm
within 4 hours.
Recurring high pressure
74
346
Initiation fault inverter.
Unspecified faults
207
400
Incorrect inverter size.
Inverter not compatible.
209
Configuration file missing.
211
Charge error configuration.
213
Communication with AA2-X20 inter-
rupted.
3 repeated communication errors
within 2 hours.
Inverter alarm type II
104
421
Poor heating medium flow, refriger-
ant leakage.
2 repeated LP/HP pressure switch
alarms within 2.5 hours.
Deployed pressure switch
108
425
High voltage in to JÄSPI Inverter Nor-
dic.
Phase voltage to inverter too high, 3
times within 2 hours or persistent for
1 hour.
Inverter alarm type I
114
431
JÄSPI Inverter Nordic
Chapter 9 |
Alarm list
38
9 Alarm list