MAINTENANCE AND SERVICE
A
ALARM TABLE
Alarm code
Cause
Solution
A001
BT1 System heat exchanger water inlet temperature probe
Probe faulty or disconnected
A002
BT2 System heat exchanger water outlet temperature probe
Probe faulty or disconnected
A003
BT8 DHW storage temperature probe
Probe faulty or disconnected
A004
BT7 Outside air temperature probe for unit management
Probe faulty or disconnected
A005
BT9 Storage tank temperature probe
Probe faulty or disconnected
A006
BT10 Temperature water outlet probe for mixed zone
Probe faulty or disconnected
A007
BP1 High pressure transducer
Transducer faulty or disconnected
A010
BT5 Compressor suction temperature probe
Probe faulty or disconnected
A011
BT6 Compressor discharge temperature probe
Probe faulty or disconnected
A012
BP2 Low pressure transducer
Transducer faulty or disconnected
A014
High pressure measured by transducer BP1
A015
Low pressure measured by transducer BP2
A016
Compressor discharge temperature out of limits
A017
Inverter start failure
A018
Inverter start failure
Check connection wiring
A019
Difference between low and high pressure in refrigerant circuit too low
Check refrigerant circuit pressure
Check refrigerant charge
A020
Compressor circuit breaker tripped
A022
Operation outside of limits
Make sure outside air temperature and water tempera-
ture set point are inside the specified operating limits
A025
System flow switch F4
Make sure filters are clean
Check water flow
Check for air in the system
A029
Fan circuit breaker tripped
A030
Compressor operating hours reached
Scheduled maintenance
A033
System pump operating hours reached
Scheduled maintenance
A035
Mixed zone pump operating hours reached
Scheduled maintenance
A036
Fan operating hours reached
Scheduled maintenance
A038
System heat exchanger frost prevention alarm
Scheduled maintenance
A039
Maximum mixed circuit temperature reached
Check mixing valve
Verify parameter value
A040
Minimum mixed circuit temperature reached
Check mixing valve
Verify parameter value
A041
DHW storage temperature too high
A042
Inside frost prevention alarm
A045
Outside air temperature probe
Check connections
Faulty probes, replace terminal
A047
Thermostatic valve driver
Contact service centre
A048
A049
A050
A051
A052
A053
A054
Legionella prevention alarm
A055
Temperature probe N-THC n.1
Check connections
Probe faulty or disconnected
A056
Address setting error on remote terminal supplied with the unit
Check connections
Check address
A057
Address setting error on expansion module 1
Check connections
Check address, must be 1
A058
Temperature probe in low temperature zone LT1, expansion 1
Probe faulty or disconnected
A059
Temperature probe B2 (not used), expansion 1
Probe faulty or disconnected
A060
Temperature probe B3 (not used), expansion 1
Probe faulty or disconnected
A061
Temperature probe B4 (not used), expansion 1
Probe faulty or disconnected
A063
Address setting error on expansion module 2
Check connections
Check address, must be 2
A064
Temperature probe in low temperature zone LT2, expansion 2
Probe faulty or disconnected
A065
Temperature probe B2 (not used), expansion 2
Probe faulty or disconnected
A066
Temperature probe B3 (not used), expansion 2
Probe faulty or disconnected
A067
Temperature probe B4 (not used), expansion 2
Probe faulty or disconnected
A069
Address setting error on expansion module 3
Check connections
Check address, must be 3
A070
Temperature probe in low temperature zone LT3, expansion 3
Probe faulty or disconnected
A071
Temperature probe B2 (not used), expansion 3
Probe faulty or disconnected
A072
Temperature probe B3 (not used), expansion 3
Probe faulty or disconnected
A073
Temperature probe B4 (not used), expansion 3
Probe faulty or disconnected
A075
Water temperature too high in mixed circuit, expansion module 1
A077
Water temperature too high in mixed circuit, expansion module 2
A094
End defrost due to maximum time
A095
Temperature probe N-THC n.2
Check connections
Probe faulty or disconnected
A096
Address setting error on zone remote terminal
Check connections
Check address
EN
i-BX-(Y)_i-BX-N-(Y)
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Содержание Climaveneta i-BX 010-035T
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