Symptom: The Pump Is Blocked; Symptom: The Pump Is Making Noise (Cavitation) - Daikin Altherma 3 R ECH2O Installer's Reference Manual

15.3.5 Symptom: The pump is blocked

15.3.6 Symptom: The pump is making noise (cavitation)

ERLA11~16DAV3+W1 + EBSH/X(B)11+16P30+50DF
Daikin Altherma 3 R ECH₂O
4P663482-1A – 2021.11
Possible causes
If the unit has been powered off for a
long time, lime might block the rotor of
the pump.
(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.
Possible causes
There is air in the system
15 Troubleshooting
|
Corrective action
Remove the screw of the stator housing
and use a screwdriver to turn back and
forth the ceramic shaft of the rotor until
(a)
the rotor is deblocked.
Note: Do NOT use excessive force.
1
2
1
3
2
Corrective action
Purge air manually (see
4
manual air purge" [ 252]) or use the
automatic air purge function (see
perform an automatic air
4
purge" [ 253]).
2
2
"To perform a
"To
Installer reference guide
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