Chigo CMV-50V9A-S, Service Manual

Page: 42 / 50

Malfunction code
：
F6
（
the outdoor temp sensor fault
）
Turn off the power
Take out the temperature sensor from outdoor PCB. Then
test this outdoor temperature sensor resistance whether ii
is normal (the normal: discharge sensor is 3K~200K the
other sensor is 1K~40K
)
.
N
The outdoor temp sensor is
bad ,please change it.
Y
Connect the sensor with the indoor PCB
again. Check the sensor and the indoor PCB
terminal resistance. The normal value is 0
Ω
N
The indoor temperature sensor adapter
connector is loose. Change this indoor PCB
or repair this adapter connector
Y
The indoor PCB is bad. please
change it
Faulty cause
：
1
、
maybe the indoor coil
temp sensor’s bnc connector plugs is loose
or contact ill;
2
、
the sensor is bad or the down-lead is
circuit-break
、
circuit
－
short
3 、 the indoor PCB’s hardware has been
damaged
Fig. 6
、
the indoor fan motor
The main winding resistance
（
the motor wire:
black-white 273
）
the
auxiliary winding resistance
（
the motor
wire: red-white 343
Ω）