Daikin EBLQ05+07CAV3 Installer's Reference Manual page 83

Possible causes
Large domestic hot water tapping
happened recently before the
programmed start-up of the
disinfection function
The disinfection operation was
stopped manually: with the user
interface displaying the DHW
home page and its user
permission level set to Installer,
the button was pressed
during disinfection operation.
12.3.10 Symptom: The energy metering
(produced heat) is NOT working correctly
Possible causes
The measured temperatures for
produced heat calculation are
NOT accurate.
12.4 Solving problems based on error
codes
When a problem happens, an error code appears on the user
interface. It is important to understand the problem and to take
countermeasure before resetting the error code. This should be
done by a licensed installer or by your local dealer.
This chapter gives you an overview of all error codes and the
content of the error code as it appears on the user interface.
For a more detailed troubleshooting guideline for each error, please
see the service manual.
12.4.1 Error codes: Overview
Error codes of the outdoor unit
Refrigerant part
Error code Detailed error
code
A5 00
E1 00
E3 00
EBLQ05+07CAV3 + EDLQ05+07CAV3 + EKCB07CAV3 +
EK2CB07CAV3 + EKMBUHCA3V3 + EKMBUHCA9W1
Daikin Altherma low temperature monobloc
4P405544-1 – 2015.03
Corrective action
When the Domestic hot water >
Type > Reheat or Reheat +
sched. is selected, it is
recommended to program the
start-up the disinfection function
at least 4 hours later than the last
expected large hot water tapping.
This start-up can be set by
installer settings (disinfection
function).
When the Domestic hot water >
Type > Scheduled only is
selected, it is recommended to
program a Storage eco 3 hours
before the scheduled start-up of
the disinfection function to
preheat the tank.
Do NOT press the button
while the disinfection function is
active.
Corrective action
Execute a calibration of the
system by performing an actuator
test run of the pump (see
"9.4.4 To perform an actuator
test run" on page 77).
Description
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.
Error code Detailed error
code
E5 00
E6 00
E7 00
E8 00
EA 00
H0 00
H3 00
H6 00
H8 00
H9 00
F3 00
F6 00
FA 00
JA 00
J3 00
J6 00
12 Troubleshooting
Description
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.
OU: Power input overvoltage.
Please contact your dealer.
OU: Cool/heat switchover
problem.
Please contact your dealer.
OU: Voltage/current sensor
problem.
Please contact your dealer.
OU: Malfunction of high
pressure switch (HPS)
Please contact your dealer.
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.
Installer reference guide
83