Symptom: The Pump Is Blocked; Symptom: The Pump Is Making Noise (Cavitation) - Daikin ERLA14D V3 Series Installer's Reference Manual

15 | Troubleshooting

15.3.5 Symptom: The pump is blocked

15.3.6 Symptom: The pump is making noise (cavitation)

Installer reference guide
270
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
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" [ 255]) or use the
automatic air purge function (see
perform an automatic air
4
purge" [ 256]).
ERLA11~16D + EBSH/X(B)11+16P30+50D
2
2
"To perform a
"To
Daikin Altherma 3 R ECH₂O
4P663482-1C – 2023.05