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Troubleshooting
Installer reference guide
191
E EHFH03S18D
Daikin Altherma 3 R F
4P596806-1C – 2022.09
Error code
Detailed error code Description
81
00
Leaving water temperature
sensor problem.
Please contact your dealer.
89
01
Heat exchanger frozen.
89
02
Heat exchanger frozen.
89
03
Heat exchanger frozen.
89
05
Heat exchanger frozen.
8F
00
Abnormal increase outlet
water temperature (DHW).
8H
00
Abnormal increase outlet
water temperature.
8H
03
Overheating water circuit
(thermostat).
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.