Nibe HBS 05 Series, Installer Manual

Page: 39 / 52

May be due to Description Alarm text on the dis-
play Alarm
■ Sudden power failure Overcurrent, Inverter A/F module Inverter error 268
■
Cold weather conditions
■
Sensor fault
Temperature of BT28 (Tho-A) below the
set value that permits operation Cold outdoor air 271
■
Warm weather conditions
■
Sensor fault
Temperature of BT28 (Tho-A) above the
value that permits operation Hot outdoor air 272
■
Open circuit or short circuit on sensor
input
■
Sensor does not work (see section "Dis-
turbances in comfort")
■
Defective control board in AMS 10
Sensor fault, heat exchanger in
AMS 10(Tho-R). Sensor fault Tho-R 277
■ Open circuit or short circuit on sensor
input
■
Sensor does not work (see section "Dis-
turbances in comfort")
■
Defective control board in AMS 10
Sensor fault, outdoor temperature sensor
in AMS 10 BT28 (Tho-A). Sensor fault Tho-A 278
■
Open circuit or short circuit on sensor
input
■
Sensor does not work (see section "Dis-
turbances in comfort")
■
Defective control board in AMS 10
Sensor fault, hot gas in AMS 10 (Tho-D). Sensor fault Tho-D 279
■
Open circuit or short circuit on sensor
input
■
Sensor does not work (see section "Dis-
turbances in comfort")
■ Defective control board in AMS 10
Sensor fault, suction gas in AMS 10 (Tho-
S). Sensor fault Tho-S 280
■
Open circuit or short circuit on sensor
input
■
Sensor does not work (see section "Dis-
turbances in comfort")
■ Defective control board in AMS 10
■
Fault in the refrigerant circuit
Sensor fault, low pressure transmitter in
AMS 10. Sensor fault LPT 281
■
Outdoor module and indoor module /
control module are not compatible. Heat pump and indoor module / control
module do not work properly together
due to technical parameters. Non-compatible air/wa-
ter heat pump 294
Open circuit or short circuit on sensor in-
put Sensor fault, Sensor high pressure heat-
ing/low pressure cooling in HBS 05 (BP4). Sensor fault BP4 404
Sensor does not work (see section "Dis-
turbances in comfort")
Defective control board AA23 in HBS 05
39 Chapter 9 | Alarm list HBS 05