TCL CWH09TBAI Service Manual page 40

10.5.6 Display CL
Cause:
Air filter duty, the unit operation Cumulative time 500 hours, the controller will confirmation the filter
dirty and display CL.
Solution: Clean the air filter then cut off the power and supply again.
10.6 MALFUNCTION (PARTS) CHECK METHOD
10.6.1 Procedure for determining defective outdoor unit IPM/compressor
The following flow chart shows a procedure for locating the cause of a malfunction when the compressor
does not start up and a DC overcurrent indication error occurs.
Use the remote operates
the air conditioner
Compressor star up
Does indoor unit LED
display error code.
No
Normal
Clean indoor or outdoor
heat exchange
Add gas
Air Conditioner Service Manual
P9
Does compressor start up
Does low or high press
valve opened
Yes
Operates again after 3 Mins
Does compressor start
P0
No
Clean indoor heat exchange
and outdoor heat exchange
Not enough
Check the refrigerant
amount
Check the installation condition
EEPROM
No
No
Yes
Yes
No
Yes
Normal
Yes
Normal
Normal
Normal
Installation again
No
Does the wire
connects right
Yes
Open
Replace the
inverter PCB
Replace the compressor
Does the wire
connects right
Replace the inverter PCB
Connects wire
again
Connects wire
again
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