May be due toDescriptionAlarm text on the displayAlarm
• Cold weather conditions
• Sensor fault
Temperature of BT28 below the value that
permits operation
Cold outdoor air271
• Warm weather conditions
• Sensor fault
Temperature of BT28 above the value that
permits operation
Hot outdoor air272
• Open circuit or short circuit on sensor
input
• Sensor does not work (see section "Dis-
turbances in comfort")
• Defective control board in F2040
Sensor fault, heat exchanger in F2040(Tho-
R).
Sensor fault Tho-R277
• Open circuit or short circuit on sensor
input
• Sensor does not work (see section "Dis-
turbances in comfort")
• Defective control board in F2040
Sensor fault, outdoor temperature sensor
in F2040 (Tho-A).
Sensor fault Tho-A278
• Open circuit or short circuit on sensor
input
• Sensor does not work (see section "Dis-
turbances in comfort")
• Defective control board in F2040
Sensor fault, hot gas in F2040 (Tho-D).Sensor fault Tho-D279
• Open circuit or short circuit on sensor
input
• Sensor does not work (see section "Dis-
turbances in comfort")
• Defective control board in F2040
Sensor fault, suction gas in F2040 (Tho-S).Sensor fault Tho-S280
• Open circuit or short circuit on sensor
input
• Sensor does not work (see section "Dis-
turbances in comfort")
• Defective control board in F2040
• Fault in the refrigerant circuit
Sensor fault, low pressure transmitter in
F2040.
Sensor fault LPT281
• Outdoor module and indoor module are
not compatible.
Heat pump and indoor module do not work
properly together due to technical paramet-
ers.
Non-compatible air/water
heat pump
294
Open circuit or short circuit on sensor inputSensor fault, Sensor high pressure heat-
ing/low pressure cooling in F2040 (BP4).
Sensor fault BP4404
Sensor does not work (see section "Disturb-
ances in comfort")
Defective control board AA23 in F2040
NIBE F2040Chapter 10 | Alarm list58
To Next Page
Loading...
Need help?
General
