Daikin VRVIII-S, Руководство по обслуживанию

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SiENBE34-703 Troubleshooting by Indication on the remote control
Troubleshooting 125
Troubleshooting
(V2778)
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Caution
Replace float switch.
Modify the float switch's
connection and turn on again.
Connect the drain pump and
turn on again.
Check the drain piping for
clogging or upward slope, etc.
Replace indoor unit PC board.
Replace the drain pump or
check for dirt, etc.
Connect either a short circuit
connector or float switch and
turn on again.
Defect of indoor unit PC board.
Loose connection of connector.
YES
Provide 220~240V power
supply.
Is power supply
220~240V provided?
The float switch is
connected to X8A (or
X15A) of the indoor unit
PC board.
A short circuit
connector is
connected to
X8A.
The float switch
contact is forming a
short circuit
(continuity check
with X8A (or X15A)
disconnected)
Becomes normal when
X8A (or X15A) of the
indoor unit PC board is
short circuited
Water builds up in
the drain pan.
The float switch
functions normally.
The drain pump is
connected to X25A or
terminals Y1 and Y2 of
the indoor unit PC
board.
The drain pump
works when the
power supply is
reset for the indoor
unit.
The voltage of
terminals Y1 and
Y2 or X25A is
220~240 V (within
5minutes of
resetting the power
supply).
YES
YES YES
YES
YES
YES
YES
YES
YES
NO
NO NO
NO
NO
NO
NO
NO
NO
NO