Service
- 205 -
‘19 • HM-T-340
E36 - Hot gas alarm
YES
NO
YES
NO
YES
NO
NO
NO
NO
NO
YES
NO
NO
YES
YES
YES
YES
YES
NO
Are the characteristics of the
hot gas sensor (Tho-D) OK?
Does the fault also occur during
cooling?
Does the discharge pipe temperature
protection control work properly?
Does the temperature (external
gauge) correspond with the
displayed temperature in the event
of an alarm?
- Is the filter blocked?
- Is the air circulation obstructed?
- Is the installation space sufficient?
- Is the heat exchanger dirty?
Replace defective sensor.
Insufficient amount of refrigerant.
Recharge it.
Check the operation data with
logging tool.
Defective control PCB - replace.
Is the service valve on the water
line open?
Open it.
Is the valve(s)
functioning properly?
Is the operation signal of the
valves outputted correctly?
Replace the indoor unit relay board AA23.
Replace the valve(s).
If the phenomenon persists,
If the phenomenon persists,
Is there clogging on the strainer on
the water line?
YES
NO
Clean - up the strainer.
Is air - bleed done properly?
Bleed the air in the water line.
Is the circulation pump setting
(5.11.1.2) done properly?
Set the appropriate value to
obtain enough water flow.
Is the operation signal of the pump
outputted correctly?
YES
Replace the pump.
Replace the indoor unit relay board AA23.
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 ...