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Troubleshooting
Installer reference guide
184
C08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10
Error code
Detailed error code Description
A1
00
Zero cross detection problem.
Power reset required.
Please contact your dealer.
A1
01
EEPROM reading error.
AA
01
Backup heater overheated.
Power reset required.
Please contact your dealer.
AH
00
Tank disinfection function
not
completed correctly.
AJ
03
Too long DHW heat-up time
required.
C0
00
Flow sensor/switch
malfunction.
Please contact your dealer.
C4
00
Heat exchanger temperature
sensor problem.
Please contact your dealer.
CJ
02
Room temperature sensor
problem.
Please contact your dealer.
EC
00
Abnormal increase tank
temperature.
EC
04
Tank preheating
H1
00
External temperature
sensor problem.
Please contact your dealer.
HC
00
Tank temperature sensor
problem.
Please contact your dealer.