Daikin Altherma EAVX-D9WG - Page 80

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