BGH BSBSIC24CTK Manual page 52

16. P7 malfunction
High temperature protection of evaporator
Whether compressor operates?
Check whether the heat exchanger is dirty, the
air-outlet is blocked and the indoor fan is normal?
Clean the heat exchanger and the air-outlet
Check whether the indoor fan is normal
Check refrigerant system (such as clogging of
capillary etc.)
48
P7 display
Yes
Yes
No
No
Whether
connection is good?
Yes
Whether
temperature sensor
is normal?
Yes
Whether the indoor
PCB is normal?
Troubleshooting
No
Reconnect
the
retest.
No
the Replace the
temperature sensor
No
Replace the indoor
PCB
and