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120
202105
CHV
Mini
Series
Ser
vice
Manual
CHV Mini VRF 50/60Hz
5.10 EC: T7/TS refrigerant cooling pipe inlet temperature sensor fault
5.11 H0: Communication fault between master chip and DSP
Pull out the T7/TS sensor plug and measure
the resistance
Check if the T7/TS sensor connector is loose
The outdoor ambient temperature is between 0
°
C
and 40
°
C, and the resistance is between 13KΩ and
2.9KΩ. The normal value at 25
°
C is about 5K.
normal
Replace the main PCB
NO
Connect the sensor well
YES
EC
If multimeter displays 0Ω or
OL, replace the sensor
H0
Communication failure between
main PCB chip and module
Replace the outdoor main PCB
Содержание CHV Mini Series
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