Daikin Altherma 3 R MT F Series Installer's Reference Manual page 266

15 | Troubleshooting
Installer reference guide
266
Error code
8F-00 Abnormal increase outlet water temperature
(DHW)
8H-00 Abnormal increase outlet water temperature
8H-01 Overheating/undercooling 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 or BUH power cable
not connected
AH-00 Tank disinfection function not completed
correctly
AJ-03 Too long DHW heat-up time required
C0-00 Flow sensor 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)
E3-24 High pressure sensor abnormality
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
F3-00 OU: Malfunction of discharge pipe temperature
F6-00 OU: Abnormal high pressure in cooling
FA-00
OU: Abnormal high pressure, actuation of HPS
H0-00 OU: Voltage/current sensor problem
Description
ERRA08~12E + ELVZ12S18+23E
Daikin Altherma 3 R MT F
4P708478-1 – 2023.05