12
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Troubleshooting
Installer reference guide
189
EPGA11~ EAV23DA6V
Daikin Altherma 3 H F
4P606487-1 – 2019.12
12.3.3 Symptom: The compressor does NOT start (space heating or domestic water heating)
Possible causes
Corrective action
The unit must start up out of its
operation range (the water
temperature is too low)
If the water temperature is too low, the
unit uses the backup heater to reach
the minimum water temperature first
(15°C).
Check and make sure that:
▪
The power supply to the backup
heater is correctly wired.
▪
The backup heater thermal protector
is NOT activated.
▪
The backup heater contactors are
NOT broken.
If the problem persists after you have
conducted all of the above checks,
contact your dealer.
The preferential kWh rate power supply
settings and electrical connections do
NOT match
This should match with the connections
as explained in
62] and
The preferential kWh rate signal was
sent by the electricity company
Wait for the power to return (2 hours
max.).
12.3.4 Symptom: The system is making gurgling noises after commissioning
Possible cause
Corrective action
There is air in the system.
Purge air from the system.
(a)
Various malfunctions.
Check if or
is displayed on the
home screen of the user interface. See
"12.4.1 To display the help text in case
of a malfunction"
193] for more
information about the malfunction.
(a)
We recommend to purge air with the air purge function of the unit (to be
performed by the installer). If you purge air from the heat emitters or collectors,
mind the following:
WARNING
Air purging heat emitters or collectors.
Before you purge air from heat emitters or
collectors, check if
or
is displayed on the home screen of the user interface.
▪
If not, you can purge air immediately.
▪
If yes, make sure that the room where you want to purge air is sufficiently
ventilated.
Reason:
Refrigerant might leak into the water circuit, and
subsequently into the room when you purge air from the heat emitters or
collectors.
