Hisense AMS-07UR4SNVT4 Service Manual page 173

6 . TROUBLE SHOOTING
6 . TROUBLE SHOOTING
Error code 15
Compressor shell temperature
too high protection
Is the protector plug
connected to the CN10
of the control board
tightly or not
yes
Stop the machine for a
while then check the pins
of the protector plug if it
is short or not
yes
Normal protecton，maybe
lack of refrigerant or the two
valves that connecting to
indoor unit are not opening
no
Reconnect the plug
The protector fault ,replace it.
no
Or the protector connecting
wire in the conpressor is
loosen,check it