Failure Of Drain System - Daikin SkyAir Super Inverter 70 D Series Service Manual

SiE25-110
6.5

Failure of Drain System

AF
Remote
Controller
Display
Applicable
FHYCP, FUYP
Models
Method of
Water leakage is detected based on float switch ON/OFF operation while the compressor is in
non-operation.
Malfunction
Detection
Malfunction When the float switch changes from ON to OFF while the compressor is in non-operation.
Decision
Conditions
Supposed
Causes
Troubleshooting
Troubleshooting
Error in drain pipe installation
Faulty float switch
Faulty indoor unit PCB
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Are float
NO
switch and drain pipe
normal?
YES
∗In FHYP and FAYP problems can also
occur in the optional drain-up kit.
Is drain-up
kit installed?
YES
Is drain pump
normal?
YES
Is
amount
of circulated drain
water excessive after
pump stops
operation?
NO
Does
drain water
flow in reverse during
nonoperation?
NO
Troubleshooting by Remote Controller Display / LED Display
Is water
NO
drainage system
normal?
YES
NO
NO
YES
YES
Possible failure of float switch.
Check to see if drain-up height
and horizontal pipe length
exceed specifications.
Clogged drain water discharge
system
Clogged drain pump
Faulty float switch
Replace indoor unit PCB.
Check jumper connector
X15A.
Check drain pump and drain
pipe.
Check water drainage system.
Check to see if drain-up height
and horizontal pipe length
exceed specifications.
Faulty trap in water drainage
system
Replace indoor unit PCB.
(S2524)
137