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Troubleshooting
Installer reference guide
181
EPGA11~16DAV3(7) + EA23DA6V(7)+9W
Daikin Altherma 3 H F
4P556075-1A – 2021.09
Error code
Detailed error code Description
8H
03
Overheating water circuit
(thermostat)
A1
00
Zero cross detection problem
A5
00
OU: High pressure peak cut /
freeze protection problem
AA
01
Backup heater overheated or
BUH power cable not connected
AA
02
External backup heater
overheated
AH
00
Tank disinfection function
not completed correctly
AJ
03
Too long DHW heat-up time
required
C0
00
Flow sensor malfunction
C0
01
Flow switch malfunction
C0
02
Flow switch malfunction
C4
00
Heat exchanger temperature
sensor problem
C5
00
Heat exchanger thermistor
abnormality
CJ
02
Room temperature sensor
problem
E1
00
OU: PCB defect
E2
00
Leakage current detection
error
E3
00
OU: Actuation of high
pressure switch (HPS)
E4
00
Abnormal suction pressure
E5
00
OU: Overheat of inverter
compressor motor
E6
00
OU: Compressor startup defect
E7
00
OU: Malfunction of outdoor
unit fan motor
E8
00
OU: Power input overvoltage
E9
00
Malfunction of electronic
expansion valve
EA
00
OU: Cool/heat switchover
problem
EC
00
Abnormal increase tank
temperature
EC
04
Tank preheating
Содержание Altherma EAVZ16S18DA6V
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