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12 Troubleshooting
Installer reference guide
75
EBLQ+EDLQ011~0W1 + EK(2)CB07CAV3
Daikin Altherma low temperature monobloc
4P538847-1 – 2018.05
Possible causes
Corrective action
Large domestic hot water tapping
happened recently before the
programmed start-up of the
disinfection function
When the Domestic hot water >
Type > Reheat or
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.
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.
Do NOT press the
button
while the disinfection function is
active.
12.3.10 Symptom: The energy metering
(produced heat) is NOT working correctly
Possible causes
Corrective action
The measured temperatures for
produced heat calculation are
NOT accurate.
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 69
).
12.4
Solving problems based on error
codes
12.4.1
Error codes: Overview
Error codes of the outdoor unit
Refrigerant part
Error code
Detailed error
code
Description
A5
00
OU: High pressure cooling/Peak
cut/ freeze protection problem.
Please contact your dealer.
E1
00
OU: PCB defect.
Power reset required.
Please contact your dealer.
E3
00
OU: Actuation of high pressure
switch (HPS).
Please contact your dealer.
E5
00
OU: Overheat of inverter
compressor motor.
Please contact your dealer.
E6
00
OU: Compressor startup defect.
Please contact your dealer.
Error code
Detailed error
code
Description
E7
00
OU: Malfunction of outdoor
unit fan motor.
Please contact your dealer.
E8
00
OU: Power input overvoltage.
Please contact your dealer.
EA
00
OU: Cool/heat switchover
problem.
Please contact your dealer.
H0
00
OU: Voltage/current sensor
problem.
Please contact your dealer.
H3
00
OU: Malfunction of high
pressure switch (HPS)
Please contact your dealer.
H6
00
OU: Malfunction of position
detection sensor.
Please contact your dealer.
H8
00
OU: Malfunction of compressor
input (CT) system.
Please contact your dealer.
H9
00
OU: Malfunction of outdoor
air thermistor.
Please contact your dealer.
F3
00
OU: Malfunction of discharge
pipe temperature.
Please contact your dealer.
F6
00
OU: Abnormal high pressure
in cooling.
Please contact your dealer.
FA
00
OU: Abnormal high pressure,
actuation of HPS.
Please contact your dealer.
JA
00
OU: Malfunction of high
pressure sensor.
Please contact your dealer.
J3
00
OU: Malfunction of discharge
pipe thermistor.
Please contact your dealer.
J6
00
OU: Malfunction of heat
exchanger thermistor.
Please contact your dealer.
L3
00
OU: Electrical box temperature
rise problem.
Please contact your dealer.
L4
00
OU: Malfunction of inverter
radiating fin temperature rise.
Please contact your dealer.