Daikin Altherma R Hybrid Installer's Reference Manual page 184

13 | Troubleshooting
Installer reference guide
184
Error code Detailed error code Description
A1 00
A1 01
AA 01
AH 00
AJ 03
C0 00
C4 00
CJ 02
EC 00
EC 04
H1 00
HC 00
Zero cross detection problem.
Power reset required.
Please contact your dealer.
EEPROM reading error.
Backup heater overheated.
Power reset required.
Please contact your dealer.
Tank disinfection function
not
completed correctly.
Too long DHW heat-up time
required.
Flow sensor/switch
malfunction.
Please contact your dealer.
Heat exchanger temperature
sensor problem.
Please contact your dealer.
Room temperature sensor
problem.
Please contact your dealer.
Abnormal increase tank
temperature.
Tank preheating
External temperature
sensor problem.
Please contact your dealer.
Tank temperature sensor
problem.
Please contact your dealer.
CHYHBH05+08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10