Drain System Abnormality - Daikin 2MXS-N Series Service Manual

Troubleshooting for FFQ Series
6.4

Drain System Abnormality

AF
Error Code
Method of Error Water leakage is detected based on the float switch ON/OFF changeover while the compressor is
not operating.
Detection
Error Decision The float switch changes from ON to OFF while the compressor is OFF.
Conditions
Supposed
Causes
Troubleshooting
130
Error in the drain pipe installation
Defective float switch
Defective indoor unit PCB
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Are
the float switch and
the drain pipe
normal?
YES
Is the
water drain system
normal?
YES
NO
NO
SiUS121502E
The float switch may be
defective. Check 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 if the drain-up
height and the horizontal
pipe length exceed the
specifications.
(R16022)
Service Diagnosis