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

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Troubleshooting

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

13.3.3 Symptom: The system is making gurgling noises after commissioning

Installer reference guide
172
Possible causes
The compressor cannot start if the
water temperature is too low. The unit
will use the backup heater to reach the
minimum water temperature (12°C),
after which the compressor can start.
The compressor cannot start in cooling
mode if the water temperature is too
low (<12°C).
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 an error or
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.
Corrective action
If the backup heater doesn't start
either, 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, contact your
dealer.
Wait until the temperature is above
12°C. The water pump will continue to
operate to sample the inlet water.
This should match with the connections
as explained in:
"8.3.1  To connect the main power
supply" [
4
 93]
"8.1.5  About preferential kWh rate
4
power
supply" [
 89]
"8.1.6 
Overview
connections
except
4
actuators" [
 90]
Wait for the power to return (maximum
2 hours).
Corrective action
Purge air from the system.
Check if is displayed on the home
pages of the user interface. You can
press
to display more information
about the malfunction.
is displayed on the home pages of the user
ERLA03DAV3 + EHFH03S18DJ3V
of
electrical
external
(a)
Daikin Altherma 3 R F
4P596806-1 – 2019.10
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