Daikin Altherma EVLQ05+08CA Installer's Reference Manual page 216

13 | Troubleshooting
Error codes of the outdoor unit
Installer reference guide
216
Error code Detailed error code Description
7H 06
INFORMATION
Error AJ-03 is reset automatically from the moment there is a normal tank heat-up.
INFORMATION
Error EC-04 is reset automatically from the moment the domestic hot water tank is
preheated to a sufficiently high temperature.
INFORMATION
If a U6‑36 error occurs, press the gas boiler's On/off button.
Error code Detailed error code Description
A5 00
E1 00
E3 00
E5 00
E6 00
E7 00
The water flow problems mainly
occurred during cooling/defrost
operation. Check the space heating/
cooling circuit.
Additionally, this error code might be an
indication of frost damage to the plate
heat exchanger. In that case, contact
your local dealer.
OU: High pressure cooling/
Peak
cut/ freeze protection
problem.
Please contact your dealer.
OU: PCB defect.
Power reset required.
Please contact your dealer.
OU: Actuation of high
pressure
switch (HPS).
Please contact your dealer.
OU: Overheat of inverter
compressor motor.
Please contact your dealer.
OU: Compressor startup
defect.
Please contact your dealer.
OU: Malfunction of outdoor
unit fan motor.
Please contact your dealer.
EVLQ05+08CAV3 + EHYHBH05AF + EHYHBH/X08AF + EHYKOMB33AA
Daikin Altherma hybrid heat pump
4P355634-1F – 2020.10