Daikin MKS-T Series, Руководство по обслуживанию

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SiSG121917E Troubleshooting for MSP Duct Type Indoor Unit
Part 6 Service Diagnosis 132
6.5 Drain System Abnormality
Error Code
AF
Method of Error
Detection
Water leakage is detected based on the float switch ON/OFF changeover while the compressor
is not operating.
Error Decision
Conditions
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
N O
N O
Caution
Be s u re to t u rn off the po w er s w itch b efore connecting or disconnecting
connectors, or parts may b e damaged.
The float s w itch may b e
defecti v e. Check if the
drain- u p height and the
horizontal pipe length
exceed the specifications.
Clogged w ater drain
system, clogged drain
p
u mp, or fa u lty float s w itch
Replace the indoor u nit
PCB (control PCB). Check
if the drain-
u p height and
the horizontal pipe length
exceed the specifications.
(R24692)
Are
the float s w itch and
the drain pipe
normal?
Is the
w ater drain system
normal?