May be due to
Description
Alarm text on the dis-
play
Alarm
■
Open circuit or short circuit on sensor
input
■
Sensor does not work (see section
"Troubleshooting")
■
Defective control board AA23 in HBS 05
Sensor fault, Sensor incoming water in
HBS 05 (BT3).
Sensor fault BT3
3
■
Open circuit or short circuit on sensor
input
■
Sensor does not work (see section "Dis-
turbances in comfort")
■
Defective control board AA23 in HBS 05
Sensor fault, Sensor outgoing water in
HBS 05 (BT12).
Sensor fault BT12
12
■
Open circuit or short circuit on sensor
input
■
Sensor does not work (see section "Dis-
turbances in comfort")
■
Defective control board AA23 in HBS 05
Sensor fault, Sensor fluid pipe in HBS 05
(BT15).
Sensor fault BT15
15
■
Low flow during heating operation
■
Too high set temperatures
Too high temperature out from the con-
denser. Self-resetting.
High condenser out
162
■
Temperature generated by another
heat source
Too high temperature into the condenser.
Self-resetting.
High condenser in
163
■
Set when the heat pump runs the de-
frosting procedure
Not an alarm, but an operating status.
Defrosting in progress
183
■
Insufficient air circulation or blocked
heat exchanger
■
Open circuit or short circuit on input for
high pressure switch (63H1)
■
Defective high pressure switch
■
Expansion valve not correctly connected
■
Service valve closed
■
Defective control board in AMS 10
■
Low or no flow during heating opera-
tion
■
Defective circulation pump
■
Defective fuse, F(4A)
The high pressure switch (63H1) deployed
5 times within 60 minutes or for 60
minutes continuously.
HP alarm
220
■
Open circuit or short circuit on input for
low pressure sensor
■
Defective low pressure sensor (LPT)
■
Defective control board in AMS 10
■
Open circuit or short circuit on input for
suction gas sensor (Tho-S)
■
Defective suction gas sensor (Tho-S)
Too low a value on the low pressure
sensor (LPT) 3 times within 60 minutes.
LP alarm
221
■
Any circuit breakers for AMS 10 off
■
Incorrect cable routing
Communication between the control
board and the communication board is
interrupted. There must be 22 volt direct
current (DC) at the switch CNW2 on the
control board (PWB1).
OU Com. error
223
37
Chapter 9 |
Alarm list
HBS 05
9 Alarm list
Summary of Contents for HBS 05 Series
Page 1: ...Installer manual LEK HBS 05 HBS 05 6 05 12 05 16 SPLIT box IHB EN 1746 1 331901...
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Page 11: ...Removing the covers HBS 05 LEK LEK LEK LEK 11 Chapter 2 Delivery and handling HBS 05...
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