TCL U-MATCH-R32 Series User Manual

TCL U-MATCH-R32 SERIES DC INVERTER AIR CONDITIONERS SERVICE MANUAL
91
3.3.10 P5---Sub-cooling protection on Cooling/Dry mode
On Cooling or Dry mode, when IDU evaporator coil temperature IPT＜1℃ continuously for 3 min after
compressor start up for 6 min, CPU will switch off outdoor unit and show P5 failure code.
Display P5
Switch on unit
after minutes
Display P5
Yes
IDU filter dirty?
Yes
Clean filter
No
Normal
No
No
P5 disappear?
Yes
IDU air inlet
blocked?
No
Yes
Clean
P5 disappear?
No
Yes
Note: Cooling
mode under low
environment
temperature
easily have P5
Can fan blade
rotate freely?
Yes
No
Check and repair
fan blade
P5 disappear?
No
Yes
protection
Fan motor
works too slow
or stopped
No
Yes
Fan motor
defect?
No
Yes
Replace motor
Yes
Sensor IPT
Replace sensor
abnormal?
No
Replace IDU PCB
End

TCL U-MATCH-R32 Series Specifications

General

Brand	TCL
Model	U-MATCH-R32 Series
Category	Air Conditioner
Language	English