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Troubleshooting for SA Indoor Unit - FFQ Series
SiBE12-816_D
227
Service Diagnosis
6.4
Drain System Abnormality
Remote
Controller
Display
AF
Method of
Malfunction
Detection
Water leakage is detected based on the float switch ON/OFF changeover while the compressor
is not operating.
Malfunction
Decision
Conditions
When the float switch changes from ON to OFF while the compressor is OFF
Supposed
Causes
Error in the drain pipe installation
Defective float switch
Defective indoor unit PCB
Troubleshooting
YES
YES
NO
NO
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
The float switch may be
defective. Check to see if
the drain-up height and the
horizontal pipe length
exceed the specifications.
Clogged water drain
system, clogged drain
pump, or faulty float switch
Replace the indoor unit
PCB. Check to see if the
drain-up height and the
horizontal pipe length
exceed the specifications.
(R14222)
Are
the float switch and
the drain pipe
normal?
Is
the water drain system
normal?