Service
- 211 -
‘19 • HM-T-340
E45 - Inverter communication error
Correct the connection.
Set JSW10, 11 correctly.
NO
YES
NO
YES
Is the voltage 15VDC detected
between
䐠
and
䐡
of CNI3 on
the control PCB side?
Replace the outdoor
fan motor.
Note (3): Under anomalous conditions,
the voltage becomes less than 14VDC.
(2) (3)
Is the voltage 15VDC detected
after disconnecting the
connector of outdoor fan motor?
(1)
Replace the ourdoor control PCB
Has the fault been corrected?
Replace the control PCB
If not solved yet, replace
the inverter PCB as well.
OK
YES
Note (2): How to check voltage at
CN13
䋻
See E51.
NO
YES
YES
NO
Connect the signal wire
securely.
YES
Is the connection of signal wire
between inverter PCB and
outdoor control PCB OK?
Note (1): See pages 183 & 184
of manual '10-HM-T149
(3)
NO
YES
Replace the inverter PCB.
NO
NO
Is the communication between
the control PCB and the inverter
PCB OK?
Are JSW10, 11 on the inverter
PCB all set correctly ?
Does the LED on the inverter
PCB flash?
Troubleshooting guide
Summary of Contents for FDCW100VNX-A
Page 7: ... 5 Technical data 19 HM T 340 Technical data ...
Page 36: ... 34 Technical data 19 HM T 340 Dimensions FDCW71VNX A Meaning of symbol ...
Page 38: ... 36 Technical data 19 HM T 340 FDCW140VNX A Meaning of symbol Dimensions ...
Page 41: ... 39 Technical data 19 HM T 340 Electrical circuit diagram ...
Page 42: ... 40 Technical data 19 HM T 340 Electrical circuit diagram ...
Page 43: ... 41 Technical data 19 HM T 340 Electrical circuit diagram ...
Page 44: ... 42 Technical data 19 HM T 340 Electrical circuit diagram ...
Page 45: ... 43 Technical data 19 HM T 340 Electrical circuit diagram ...
Page 46: ... 44 Technical data 19 HM T 340 Electrical circuit diagram ...
Page 47: ... 45 Technical data 19 HM T 340 Electrical circuit diagram ...
Page 48: ... 46 Technical data 19 HM T 340 Electrical circuit diagram ...
Page 49: ... 47 Technical data 19 HM T 340 Electrical circuit diagram Split box HSB60 W ...
Page 50: ... 48 Technical data 19 HM T 340 HSB100 Electrical circuit diagram ...
Page 51: ... 49 Technical data 19 HM T 340 HSB140 Electrical circuit diagram ...
Page 52: ... 50 Technical data 19 HM T 340 Electrical circuit diagram Outdoor units FDCW60VNX A ...
Page 57: ... 55 Technical data 19 HM T 340 Electrical circuit diagram POWER SOURCE RC HY20 W sheet 3 ...
Page 58: ... 56 Technical data 19 HM T 340 Electrical circuit diagram RC HY20 W sheet 4 ...
Page 61: ... 59 Technical data 19 HM T 340 Electrical circuit diagram POWER SOURCE RC HY40 W sheet 3 ...
Page 62: ... 60 Technical data 19 HM T 340 Electrical circuit diagram RC HY40 W sheet 4 ...
Page 64: ... 62 Technical data 19 HM T 340 Electrical circuit diagram RC HY40 W sheet 6 ...
Page 65: ...Installation 19 HM T 340 Installation 63 ...
Page 133: ...Control 19 HM T 340 Control 131 ...
Page 170: ... 168 Service 19 HM T 340 Service ...
Page 263: ... 258 Service 19 HM T 340 Outdoor unit FDCW60VNX FDCW71VNX Component replacement ...
Page 264: ...Service 259 19 HM T 340 FDCW100VNX FDCW140VNX LEK LEK Component replacement ...
Page 290: ... 285 Components 19 HM T 340 Components ...
Page 300: ... 295 Components 19 HM T 340 PT300 Component positions ...
Page 301: ... 296 Components 19 HM T 340 Component positions PT300 PT300 A mm 1634 B mm 743 C mm 673 ...
Page 302: ... 297 Components 19 HM T 340 PT500 Component positions ...
Page 303: ... 298 Components 19 HM T 340 PT500 Component positions PT500 A mm 1835 B mm 897 C mm 832 ...
Page 311: ...THo R THo A THo D Outside units FDCW60VNX 306 Components 19 HM T 340 Piping system ...