Daikin Altherma EAVX-D9WG Installer's Reference Manual page 80

12 Troubleshooting
Error code Detailed error
code
E5 00
E6 00
E7 00
E7 62
E8 00
E9 00
EA 00
EC 00
EC 04
F3 00
F6 00
FA 00
H0 00
H0 01
H1 00
H3 00
H4 00
H5 00
H6 00
H8 00
H9 00
HC 00
HC 01
HJ 10
HJ 11
HJ 12
J3 00
J5 00
J6 00
J6 07
J6 32
J6 33
J7 12
Installer reference guide
80
Description
OU: Overheat of inverter
compressor motor
OU: Compressor startup defect
OU: Malfunction of outdoor unit
fan motor
Brine flow abnormality
OU: Power input overvoltage
Malfunction of electronic
expansion valve
OU: Cool/heat switchover
problem
Abnormal increase tank
temperature
Tank preheating
OU: Malfunction of discharge
pipe temperature
OU: Abnormal high pressure in
cooling
OU: Abnormal high pressure,
actuation of HPS
OU: Voltage/current sensor
problem
Brine flow switch malfunction
External temperature sensor
problem
OU: Malfunction of high pressure
switch (HPS)
Malfunction of low pressure
switch
Malfunction of compressor
overload protection
OU: Malfunction of position
detection sensor
OU: Malfunction of compressor
input (CT) system
OU: Malfunction of outdoor air
thermistor
Tank temperature sensor
problem
Second tank temperature sensor
problem
Water pressure sensor
abnormality
Boiler abnormality detection
Bypass valve turning error
OU: Malfunction of discharge
pipe thermistor
Malfunction of suction pipe
thermistor
OU: Malfunction of heat
exchanger thermistor
OU: Malfunction of heat
exchanger thermistor
Leaving water temperature
thermistor Abnormality (outdoor
unit))
Sensor communication error
Brine inlet thermistor abnormality
Error code Detailed error
code
J8 00
J8 07
JA 00
JA 17
L1 00
L3 00
L4 00
L5 00
L8 00
L9 00
LC 00
P1 00
P3 00
P4 00
PJ 00
U0 00
U1 00
U2 00
U3 00
U4 00
U5 00
U6 36
U7 00
U8 01
U8 02
U8 03
U8 04
U8 05
U8 06
U8 07
U8 08
UA 00
UA 17
UA 21
UA 22
EPGA11~16DAV3 + EAVH/X16S18+23DA6V+9W
Description
Malfunction of refrigerant liquid
thermistor
Brine outlet thermistor
abnormality
OU: Malfunction of high pressure
sensor
Refrigerant pressure sensor
abnormality
Malfunction of INV PCB
OU: Electrical box temperature
rise problem
OU: Malfunction of inverter
radiating fin temperature rise
OU: Inverter instantaneous
overcurrent (DC)
Malfunction triggered by a
thermal protection in the inverter
PCB
Prevention of compressor lock
Malfunction in communication
system of outdoor unit
Open-phase power supply
imbalance
Abnormal direct current t
OU: Malfunction of radiating fin
temperature sensor
Capacity setting mismatch
OU: Shortage of refrigerant
Malfunction by reverse phase/
open-phase
OU: Defect of power supply
voltage
Under floor heating screed dryout
function not completed correctly
Indoor/outdoor unit
communication problem
User interface communication
problem
Boiler standby abnormality
OU: Transmission malfunction
between main CPU- INV CPU
Connection with LAN adapter lost
Connection with room thermostat
lost
No connection with room
thermostat
Unknown USB device
File malfunction
Boiler communication error
P1P2 communication error
Boiler communication error
Indoor unit, outdoor unit matching
problem
Tank type problem
Extension/hydro mismatch
problem
Communication problem between
control box and option box
Daikin Altherma – Low temperature split
4P556070-1 – 2019.02