15
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Troubleshooting
Installer reference guide
277
ERRA08~12E + ELVH/23E
Daikin Altherma 3 R MT F
4P708474-1 – 2023.05
Possible cause
Corrective action
Various malfunctions.
Check if or
is displayed on the
home screen of the user interface. See
"15.4.1 To display the help text in case
of a malfunction"
281] 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.
15.3.5 Symptom: The pump is blocked
Possible causes
Corrective action
If the unit has been powered off for a
long time, lime might block the rotor of
the pump.
Depending on the pump type, do one of
the following:
▪
Use a Philips No. 2 screwdriver to
push the deblocking screw of the
rotor in (0.5 cm). Then turn the
deblocking screw back and forth until
the rotor is deblocked.
(a)
Note:
Do NOT use excessive force.
2
2
1
▪
Remove the screw of the stator
housing and use a screwdriver to turn
back and forth the ceramic shaft of
the rotor until the rotor is deblocked.
(a)
Note:
Do NOT use excessive force.
(a)
If you cannot deblock the rotor of the pump with this method, you will need to
disassemble the pump and turn the rotor by hand.
