Daikin Altherma 3 R F Installer's Reference Manual page 205

Error codes of the indoor unit
ERGA04~08DAV3(A) + EHVH/X04+08S18+23DA/DJ3V+6V+9W7
Daikin Altherma 3 R F
4P618947-1 – 2020.03
Error code Detailed error code Description
L4 00
L5 00
P4 00
U0 00
U2 00
U7 00
Error code Detailed error code Description
7H 01
7H 04
7H 05
7H 06
7H 07
80 00
81 00
89 01
89 02
89 03
8F 00
8H 00
8H 03
AA 01
AA 02
AH 00
12 Troubleshooting
|
OU: Malfunction of inverter
radiating fin temperature
rise
OU: Inverter instantaneous
overcurrent (DC)
OU: Malfunction of radiating
fin temperature sensor
OU: Shortage of refrigerant
OU: Defect of power supply
voltage
OU: Transmission malfunction
between main CPU- INV CPU
Water flow problem
Water flow problem during
domestic hot water production
Water flow problem during
heating/sampling
Water flow problem during
cooling/defrost
Water flow problem. Pump
deblocking active
Returning water temperature
sensor problem
Leaving water temperature
sensor problem
Heat exchanger frozen
Heat exchanger frozen
Heat exchanger frozen
Abnormal increase outlet
water temperature (DHW)
Abnormal increase outlet
water temperature
Overheating water circuit
(thermostat)
Backup heater overheated
External backup heater
overheated
Tank disinfection function
not completed correctly
Installer reference guide
205