32
Outdoor unit display
LED STATUS
P4(LED flashes for nine times)
Compressor drive malfunction
（
module protection arose
）
Are the U,V,W connected to compressor and inverter module right?
Replace the module to see if it is normal
？
Replace the outdoor power board
If the problem comes to again, check wingding resistance of inverter compressor, is it right?
Replace inverter compressor
Repair connector
Yes
No
No
Replace inverter compressor
Repair connector
If the problem comes to again, check wingding resistance of inverter compressor, is it
1 ohm
?
Replace the outdoor power board
Are the U,V,W connected to compressor and inverter module right?
Yes
No
No
