Hisense AMS-07UR4SNVT4 Service Manual page 175

6 . TROUBLE SHOOTING
6 . TROUBLE SHOOTING
Error code 19
Compressor drive in trouble
Is the wires between
control board and drive
board connecting tightly?
yes
Is there +5V
in the CN6 ?
yes
Change the
drive board and
check ok or not
yes
Drive board is fault
no
Reconnect the wires
Disconnect the
no
wires of CN6 and
check the +5V
again
yes
Check the compressor:
1.
no
2.
The error appeared by
accident,keep operating
and watching the air-con
no
Change the control
board
the resistance of the
windings right or not
the resistance between
the windings and
grand right or not
yse
no
The compressor
is fault,change
the compressor