13 Disposal
Installer reference guide
86
ERGA04~08DAV3(A) + EHVH04+08S23DAV
Daikin Altherma – Low temperature split
4P499573-1A – 2018.11
Error code Detailed error
code
Description
C0 00 Water flow detected while pump
is OFF
C0 01 Flow switch malfunction
C0 02 Flow switch malfunction
C4 00 Heat exchanger temperature
sensor problem
CJ 02 Room temperature sensor
problem
EC 00 Abnormal increase tank
temperature
EC 04 Tank preheating
H1 00 External temperature sensor
problem
HC 00 Tank temperature sensor
problem
HC 01 Second tank temperature sensor
problem
HJ 10 Water pressure sensor
abnormality
JA 17 Refrigerant pressure sensor
abnormality
U3 00 Under floor heating screed dryout
function not completed correctly
U4 00 Indoor/outdoor unit
communication problem
U5 00 User interface communication
problem
U8 01 Connection with LAN adapter lost
U8 02 Connection with room thermostat
lost
U8 03 No connection with room
thermostat
UA 00 Indoor unit, outdoor unit matching
problem
UA 17 Tank type problem
UA 21 Extension/hydro mismatch
problem
UA 22 Communication problem between
control box and option box
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.
INFORMATION
If the anti-legionella heater overheats and is disabled by
the thermostatic safety, the unit will not give an error
directly. Check if the anti-legionella heater is still in
operation if you experience one or more of the following
errors:
▪ Powerful operation takes a very long time to heat up
and the error code AJ-03 is displayed.
▪ During anti-legionella operation (weekly), the error code
AH-00 is displayed because the unit cannot reach the
requested temperature required for tank disinfection.
INFORMATION
A malfunctioning anti-legionella heater will have an impact
on energy metering and power consumption control.
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.
INFORMATION
Error AJ-03 is reset automatically from the moment there is
a normal tank heat-up.
INFORMATION
How an error code can be reset will be displayed on the
user interface connected on the indoor unit.
Error code UA 17: Tank type problem
Possible cause Corrective action
No backup heater is installed,
and [E-05] is set to "0".
Set [E-05] to "1".
13 Disposal
NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.
13.1 Overview: Disposal
Typical workflow
Disposing of the system typically consists of the following stages:
1 Pumping down the system.
2 Bringing the system to a specialized treatment facility.
INFORMATION
For more details, see the service manual.
13.2 To pump down
Example: To protect the environment, pump down when relocating
the unit or when disposing of the unit.
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