Chigo CMV-50V9A-S, Service Manual

Page: 44 / 50

Fig. 7 the wire controller
Fig.8 the indoor PCB
Malfunction code
：
P2
（
the outdoor unit transducer module protection faulty
）
Turn off the power
1、whether the compressor’s connecting wiring is loose
2、check whether the module and radiator are firm
N
1、pls make the compressor’s
connecting wiring firm。
2 、 pls fixup the IPM and
radiator together
Y
Check whether the compressor’s winding value is normal
（
refer to SNYO C-6RZ146H1A winding value:T-R 0.452
Ω
T-S0.452
Ω
R-S0.452
Ω）
N
The compressor is bad, then
change it.
The intelligent power module is bad , and
then change it.
Y
The faulty cause
：
1 、 the compressor’s connecting wiring is
loose;
2、the IPM module and radiator are not firm
3、the IPM board has the fault.
4、the compressor is bad.
The dynatron Q3 reference value:
be pole :The positive pole resistance
：
660
Ω
the negative pole resistance
：
961
Ω；
bc pole :The positive pole resistance
：
659
Ω
the negative pole resistance :1439
Ω
The clamping diode’s parameter:
VD15 The positive pole resistance
：
389
Ω
the
negative pole resistance
：
392
Ω
VD16 The positive pole resistance
：
497
Ω
the
negative pole resistance
：
1012
Ω