Symptom: The Compressor Does Not Start (Space Heating Or Domestic Water Heating); Symptom: The System Is Making Gurgling Noises After Commissioning - Daikin Altherma 3 R F Installer's Reference Manual

12 | Troubleshooting

12.3.2 Symptom: The compressor does NOT start (space heating or domestic water heating)

12.3.3 Symptom: The system is making gurgling noises after commissioning

Installer reference guide
182
Possible causes
The unit must start up out of its
operation range (the water
temperature is too low)
The preferential kWh rate power supply
settings and electrical connections do
NOT match
The preferential kWh rate signal was
sent by the electricity company
Possible cause
There is air in the system.
Various malfunctions.
(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
▪
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.
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 contactor is NOT
broken.
If the problem persists after you have
conducted all of the above checks,
contact your dealer.
This should match with the connections
as explained in
4
wiring" [ 50] and
main power
Wait for the power to return (2 hours
max.).
Purge air from the system.
Check if
home screen of the user interface. See
"12.4.1 To display the help text in case
of a malfunction" [
information about the malfunction.
or is displayed on the home screen of the user interface.
ERGA04~08DAV3(A) + EHVZ04+08S18+23DA6V+9W7
Corrective action
"6.5 Preparing electrical
"7.9.8 To connect the
4
supply" [ 86].
Corrective action
(a)
or is displayed on the
4
186] for more
Daikin Altherma 3 R F
4P618957-1 – 2020.03