Daikin EBLQ05+07CAV3 Installer's Reference Manual page 84

12 Troubleshooting
Error code Detailed error
code
L3 00
L4 00
L5 00
P4 00
U0 00
U2 00
U7 00
UA 00
Hydro part
Error code Detailed error
code
A1 00
AA 01
UA 00
7H 01
7H 04
7H 05
7H 06
Installer reference guide
84
Description
OU: Electrical box temperature
rise problem.
Please contact your dealer.
OU: Malfunction of inverter
radiating fin temperature rise.
Please contact your dealer.
OU: Inverter instantaneous
overcurrent (DC).
Please contact your dealer.
OU: Malfunction of radiating
fin temperature sensor.
Please contact your dealer.
OU: Shortage of refrigerant.
Please contact your dealer.
OU: Defect of power supply
voltage.
Please contact your dealer.
OU: Transmission malfunction
between main CPU- INV CPU.
Please contact your dealer.
OU: Indoor/outdoor combination
problem.
Power reset required.
Description
Zero cross detection problem.
Power reset required.
Please contact your dealer.
Backup heater overheated.
Power reset required.
Please contact your dealer.
Hydro part / refrigerant part
matching problem.
Power reset required.
Water flow problem.
Auto restart.
Water flow problem during
domestic hot water production.
Manual reset.
Check the domestic hot water
circuit.
Water flow problem during
heating/sampling.
Manual reset.
Check the space heating/cooling
circuit.
Water flow problem during
cooling/defrost.
Manual reset.
Check the plate heat exchanger.
Error code Detailed error
code
89 01
8H 00
8F 00
C0 00
C0 01
C0 02
U3 00
81 00
C4 00
80 00
U5 00
U4 00
AC 00
EC 00
HC 00
CJ 02
H1 00
89 02
EBLQ05+07CAV3 + EDLQ05+07CAV3 + EKCB07CAV3 +
EK2CB07CAV3 + EKMBUHCA3V3 + EKMBUHCA9W1
Daikin Altherma low temperature monobloc
Description
Heat exchanger frozen.
Abnormal increase outlet
water temperature.
Abnormal increase outlet
water temperature (DHW).
Flow sensor malfunction.
Manual reset.
Flow switch malfunction.
Auto reset.
Flow switch malfunction.
Manual reset.
Under floor heating screed
dryout function not completed
correctly.
Leaving water temperature
sensor problem.
Please contact your dealer.
Heat exchanger temperature
sensor problem.
Please contact your dealer.
Returning water temperature
sensor problem.
Please contact your dealer.
User interface
communication problem.
Hydro part / refrigerant part
communication problem
Booster heater overheated.
Please contact your dealer.
Abnormal increase tank
temperature.
Tank temperature sensor
problem.
Please contact your dealer.
Room temperature sensor
problem.
Please contact your dealer.
External temperature
sensor problem.
Please contact your dealer.
Heat exchanger frozen.
4P405544-1 – 2015.03