Symptom: The Compressor Does Not Start (Space Heating); Symptom: The System Is Making Gurgling Noises After Commissioning; Symptom: The Pump Is Making Noise (Cavitation) - Daikin Altherma R Hybrid Installer's Reference Manual

13 | Troubleshooting

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

13.3.3 Symptom: The system is making gurgling noises after commissioning

13.3.4 Symptom: The pump is making noise (cavitation)

Installer reference guide
176
Possible causes
The unit must start up out of its
operation range (the water
temperature is too low)
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.
Possible causes
There is air in the system
Corrective action
If the water temperature is too low, the
unit uses the gas boiler to reach the
minimum water temperature first
(15°C).
Check and make sure that:
▪ The power supply to the gas boiler is
correctly wired.
▪ The communication cable between
the gas boiler and the indoor unit is
properly mounted.
If the problem persists after you have
conducted all of the above checks,
contact your dealer.
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
Corrective action
Purge air manually (see
4
manual air purge" [ 157]) or use the
automatic air purge function (see
perform an automatic air
4
purge" [ 158]).
CHYHBH05+08AF + EHYKOMB33A
(a)
"To perform a
"To
Daikin Altherma R Hybrid
4P471761-1E – 2020.10