Carrier 12K - Full-Water Malfunction

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Troubleshooting (Cont.)
Solving steps for typical malfunction (Cont.)
For indoor unit (Cont.)
f. Full-water malfunction
Full-water malfunction
Check whether the wate
r
-level switch is
inserted well
No
Insert the water-level switch well
Check whether the water-level switch is broken
Yes
Yes
Replace the water-level switch
Check whether the water pump is normal
No
Check PCB board or replace the main control
board
Yes
No
Replace the water pump