Penyelesaian Masalah Menggunakan Remote Kontrol
Clogging of foreign
particles
Defective outdoor
unit electronic
High suction
air
temperature
High suction air
temperature of
unit outdoor
Mixing of non-condensable gas
Defective service
monitor PCB
(Including
capacity setting)
PERIKSA 1
Pemeriksaan untuk Penyebab Kenaikan Tekanan Tinggi
Mengacu pada Analisis Pohon Kesalahan/Fault Tree Analysis (FTA) yang ditunjukkan di
bawah, menyelidiki titik yang rusak.
Rise in high
pressure
Local
pressure
rise
[In cooling]
If the katup ekspansi
elektronik unit outdoor is
throttled:
(
1)
Defective valve coil
Check to be sure the stop valve is open.
Conduct visual checks for pipe conditions.
Is there any temperature difference caused before
and after the filter or branch pipe.
Are the coil resistance and insulation normal?
[In cooling]
A temperature difference in excess of 10
C
between the inlet and the outlet i s deemed to be abnormal.
Defective sensor tekanan tinggi
Defective service monitor PCB
Short circuit
High outdoor air temperature
Are the electrical characteristics normal?
Is the pressure value checked with the Service Checker
corresponding to the measurement of the pressure sensor?
Is the suction air temperature not more than
43
C?
Is the outdoor temperature not more than 43
C?
Degradation
Decreased
Is the penukar panas clogged? (In cooling)
Is air or else mixed in the refrigeran system?
Can the fan motor be rotated with hands?
Are the motor coil resistance and
insulation normal?
If a spare PCB is mounted, is the capacity
setting properly made?
Is the air filter clogged?
Obstacle
Is there any obstacle in the air passage?
Excessive pengisian refrigeran
Is the indoor unit too small compared to
the large-sized unit outdoor?
Catatan: 1: In cooling, it is normal if the katup ekspansi elektronik unit outdoor (EV1) is fully open.
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