Error Codes: Overview - Daikin EPRA18DAW1 Installer's Reference Manual

13 | Troubleshooting

13.4.2 Error codes: Overview

Error codes of the unit
Installer reference guide
216
▪ : Error
▪ : Malfunction
You can get a short and a long description of the malfunction as follows:
1 Press the left dial to open the main menu and go to
Malfunctioning.
Result: A short description of the error and the error code is
displayed on the screen.
2 Press in the error screen.
Result: A long description of the error is displayed on the
screen.
Error code
7H-01
Water flow problem
7H-04 Water flow problem during domestic hot water
production
7H-05 Water flow problem during heating/sampling
7H-06 Water flow problem during cooling/defrost
80-01 Returning water temperature sensor problem
81-00
Leaving water temperature sensor problem
81-01 Mixed water thermistor abnormality.
81-06 Entering water temperature thermistor
abnormality (indoor unit)
89-01 Heat exchanger frozen (during defrost)
89-02 Heat exchanger frozen (not during defrost)
89-03 Heat exchanger frozen (during defrost)
8F-00
Abnormal increase outlet water temperature
(DHW)
8H-00 Abnormal increase outlet water temperature
8H-01 Overheating mixed water circuit
8H-02 Overheating mixed water circuit (thermostat)
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
AC-00 Booster heater overheated
Description
EPRA14~18DAV3+W1 + ETVZ16S18+23DA6V+9W
Daikin Altherma 3 H HT F
4P587503-1A – 2020.01