TCL TAC-09CSD/XAB1

TCL Air Conditioner Service Manual
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34
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3.2.3 P7---Overheating protection on Cooling mode
On heating mode, when IDU evaporator coil temperature IPT≥62℃, ODU PCB will switch off outdoor unit
and show P7 failure code.
Display P7
ODU fan motor
works normal?
Replace IPT sensor
Replace IDU PCB
Fan motor
broken?
Replace fan motor
End
No
No
Y
es
Y
es
P7 disappear?
P7 disappear?
Y
esNo
Y
es
No
The sensor open or
short circuit?
No
Y
es
Sensor loosing
from connector?
Re-connect sensor
P7 disappear?
Y
es
Y
es
No