Daikin EBLQ05+07CAV3 Installer's Reference Manual page 85

Error code Detailed error
code
A1 00
AH 00
89 03
AJ 03
UA 17
UA 16
UA 22
INFORMATION
In case of error code AH and no interruption of the
disinfection function occurred due to domestic hot water
tapping, following actions are recommended:
▪ When the Domestic hot water > Type > Reheat or
Reheat + sched. is selected, it is recommended to
program the start-up of 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.
NOTICE
When the minimum water flow is lower than described in
the table below, the unit will temporarily stop operation and
the user interface will display error 7H‑01. After some time,
this error will reset automatically and the unit will resume
operation.
Minimum required flow
05+07 models
If the 7H‑01 error persists, the unit will stop operation and the user
interface will display an error code that needs to be reset manually.
Depending on the problem, this error code is different:
Error code Detailed error
code
7H 04
7H 05
EBLQ05+07CAV3 + EDLQ05+07CAV3 + EKCB07CAV3 +
EK2CB07CAV3 + EKMBUHCA3V3 + EKMBUHCA9W1
Daikin Altherma low temperature monobloc
4P405544-1 – 2015.03
Description
EEPROM reading error.
Tank disinfection function not
completed correctly.
Heat exchanger frozen.
Too long DHW heat-up time
required.
Tank type problem
Communication problem between
hydro part and control box.
Communication problem between
control box and option box.
12 l/min
Description
The water flow problems mainly
occurred during domestic hot
water operation. Check the
domestic hot water circuit.
The water flow problems mainly
occurred during space heating
operation. Check the space
heating circuit.
Error code Detailed error
code
7H 06
INFORMATION
Error AJ-03 is reset automatically from the moment there is
a normal tank heat-up.
INFORMATION
If the unit detects flow when the pump is not running, an
external device might be causing flow, or there might be
something wrong with the flow measuring devices (flow
sensor and flow switch).
▪ If the flow sensor detects flow when the pump is not
running, the unit will stop operation and the user
interface will display error C0‑00. For the unit to resume
operation, this error needs to be reset manually.
▪ If the flow switch detects flow when the pump is not
running, the unit will temporarily stop operation and the
user interface will display error C0‑01. After some time,
the error will reset automatically and the unit will
resume operation. If the problem persists, the unit will
stop operation and the user interface will display error
C0‑02. For the unit to resume operation, this error
needs to be reset manually.
13 Disposal
13.1 Overview: Disposal
Typical workflow
Disposing of the system typically consists of the following stages:
1 Pumping down the system.
2 Dismantling the system according to the applicable legislation.
3 Treating the refrigerant, oil and other parts according to the
applicable legislation.
INFORMATION
For more details, see the service manual.
13.2 To pump down
Example: To protect the environment, pump down when disposing
of the unit.
It is NOT required to pump down when relocating the unit.
NOTICE
During pump down operation, stop the compressor before
removing the refrigerant piping. If the compressor is still
running and the stop valve is open during pump down, air
will be sucked into the system. Compressor breakage and
other injury will be the result due to abnormal pressure in
the refrigerant cycle.
Pump down operation will extract all refrigerant from the system into
the outdoor unit.
13 Disposal
Description
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.
Installer reference guide
85