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Maintenance and service
Installer reference guide
262
ERLA11~W1 + EBSH/X(B)11+16P30+50DF
Daikin Altherma 3 R ECH₂O
4P663482-1A – 2021.11
Switch box
▪
Carry out a thorough visual inspection of the switch box and look for obvious
defects such as loose connections or defective wiring.
▪
Using an ohmmeter, check if contactors K1M, K2M, K3M and K5M (depending on
your installation) operate correctly. All contacts of these contactors must be in
open position when the power is turned OFF.
WARNING
If the internal wiring is damaged, it has to be replaced by the manufacturer, its
service agent or similarly qualified persons.
Storage tank water level
Carry out a visual check of the water level inside the storage tank.
1
"7.2.4 To open the indoor unit"
82]):
1
User interface panel
1
2
2
Switch box
2
Check if the red level indicator is visible. If NOT, add water to the storage tank
(see
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