Nibe F1355 Operating Manual page 53

Alarm Alarm text on the
no. display
60 Lo Bri out
70 Communication
fault with PCA In-
put.
71 Com.flt Base
72 Comm.flt MC
73- Com.err. Acc.
94
96- Com.err. RMU
99
100 Communication
fault with inverter
130- Perm. com. error to
133 climate system 5-8
206 Perm. com. error
"HW comfort"
245 - Perm. com. error
251 "accessory"
253 Flt: QZ1-BT70
NIBE F1355
Cause
The temperature of the out-
going brine (BT11) drops be-
low the set minimum temper-
ature and the alarm is selec-
ted to be permanent.
Communication with the in-
put board (AA3) is missing.
Communication with the in-
put board (AA2 or AA26) is
missing.
Communication with the
soft-start board (AA10) is
missing.
Communication with the ac-
cessory card is missing.
Communication with the
room unit is missing.
Communication with the in-
verter is missing.
Communication with the ac-
cessory board has been miss-
ing for 15 seconds.
Communication with the
room unit has been missing
for 15 seconds.
Communication with the ac-
cessory board has been miss-
ing for 15 seconds.
No contact with the sensor
(temperature sensor, hot
water, supply line).
Heat pump action.
Compressor blocked.
Blocking the relevant com-
pressor.
Compressor blocked.
Compressor blocked.
Accessory is blocked.
Room unit is blocked.
Compressor blocked.
Accessory is blocked.
Accessory is blocked.
Accessory is blocked.
The mixing valve is closed
and only cold water is permit-
ted.
May be due to/check
Insufficient circulation of the
brine.
■
Check the brine pump.
■
Check that the brine has
been vented.
■
Check the brine's freezing
point.
Defective communication
cables.
Defective communication
cables.
Defective communication
cables.
■
Defective communication
cables.
■
The accessory is activated
in the display while not
connected with the com-
munication cable.
■
Incorrectly connected
communication cable.
■
Incorrectly set dipswitch.
■
No electrical supply to the
accessory card.
Defective communication
cables.
Check communication cables.
Selected accessory not in-
stalled.
■
Defective communication
cables.
■
Incorrectly set dipswitch.
■
Defective communication
cables.
■
Incorrectly set dipswitch.
■
Open-circuit or short-circuit
on sensor input.
■
Defective sensor
Chapter 5 | Disturbances in comfort 53