Daikin ERLQ004CA Installer's Reference Manual page 83

Error code Detailed error
code
H6 00
H8 00
H9 00
F3 00
F6 00
FA 00
JA 00
J3 00
J6 00
L3 00
L4 00
L5 00
P4 00
U0 00
U2 00
U7 00
ERLQ004~008CA + EHBH/X04+08CB
Daikin Altherma – Low temperature split
4P384972-1B – 2017.04
Description
OU: Malfunction of position
detection sensor.
Please contact your dealer.
OU: Malfunction of compressor
input (CT) system.
Please contact your dealer.
OU: Malfunction of outdoor
air thermistor.
Please contact your dealer.
OU: Malfunction of discharge
pipe temperature.
Please contact your dealer.
OU: Abnormal high pressure
in cooling.
Please contact your dealer.
OU: Abnormal high pressure,
actuation of HPS.
Please contact your dealer.
OU: Malfunction of high
pressure sensor.
Please contact your dealer.
OU: Malfunction of discharge
pipe thermistor.
Please contact your dealer.
OU: Malfunction of heat
exchanger thermistor.
Please contact your dealer.
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.
Error code Detailed error
code
UA 00
Error codes of the indoor unit
Error code Detailed error
code
7H 01
7H 04
7H 05
7H 06
80 00
81 00
89 01
89 02
89 03
8F 00
8H 00
8H 03
A1 00
12 Troubleshooting
Description
OU: Indoor/outdoor combination
problem.
Power reset required.
Description
Water flow problem.
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.
Returning water temperature
sensor problem.
Please contact your dealer.
Leaving water temperature
sensor problem.
Please contact your dealer.
Heat exchanger frozen.
Heat exchanger frozen.
Heat exchanger frozen.
Abnormal increase outlet
water temperature (DHW).
Abnormal increase outlet
water temperature.
Overheating water circuit
(thermostat).
Zero cross detection problem.
Power reset required.
Please contact your dealer.
Installer reference guide
83