Service
-
-
Description
E40
E42
E45
E48
E49
E51
E53
Alarm text on the
display
Alarm
no.
May be due to
HP alarm
Inverter error
Inverter error
Fan alarm
LP alarm
Inverter error
S. fault Tho-S
The high pressure sensor (63H1) deployed 5 times
within 60 minutes or under 60 minutes continu-
ously.
Voltage from the inverter outside the parameters
four times within 30 minutes.
- Insufficient air circulation or blocked heat exchang-
er
- Open circuit or short circuit on input for high
pressure sensor (63H1)
- Defective high pressure sensor
- Expansion valve not correctly connected
- Service valve closed
- Defective control PCB in FDCW100VNX
- Low or no flow during heating operation
- Defective circulation pump
Also see the troubleshooting guide on page 122.
- Incoming power supply interference
- Service valve closed
- Insufficient amount of refrigerant
- Compressor fault
- Defective inverter PCB in FDCW100VNX
Also see the troubleshooting guide on page 123.
- The fan must not rotate freely
- Defective control PCB in FDCW100VNX
- Defective fan motor
- Control PCB in FDCW100VNX dirty
- Fuse (F2) blown
Also see the troubleshooting guide on page 125.
- Defective control PCB in FDCW100VNX
Also see the troubleshooting guide on page 129.
- Open-circuit or short-circuit on sensor input
- Sensor does not work (see “Temperature sensor”
section)
- Open circuit or short circuit on input for suction gas
sensor (Tho-S)
- Defective suction gas sensor (Tho-S)
Also see the troubleshooting guide on page 126.
- Open circuit or short circuit on input for low
pressure sensor
- Defective low pressure sensor
- Defective control PCB in FDCW100VNX
- Open-circuit in connection between PCBs
- Defective inverter PCB in FDCW100VNX
- Defective control PCB in FDCW100VNX
Also see the troubleshooting guide on page 124.
- Defective fan motor
- Defective inverter PCB in FDCW100VNX
Also see the troubleshooting guide on page 128.
Communication between PCB for inverter and control
PCB broken.
Too low value on the low pressure sensor 3times
within 60 minutes.
Continuous deviation on power transistor for 15
minutes.
Sensor fault, suction gas in FDCW100VNX (Tho-S).
Deviations in the fan speed in FDCW100VNX.
Alarm list
Содержание FDCW100VNX
Страница 7: ...For Home Owners 6 For Home Owners ...
Страница 20: ...Installation 19 Installation ...
Страница 42: ...Control 41 Control ...
Страница 66: ...System description 65 System description ...
Страница 81: ...Service 80 Service ...
Страница 138: ...Service Component replacement HM270V FDCW100VNX K E L LEK 1 2 5 6 LEK 3 4 LEK 7 LEK LEK LEK Component replacement ...
Страница 148: ...Components 147 Components ...
Страница 155: ...Technical data 154 Technical data ...
Страница 156: ...Technical data Electrical circuit diagram 155 Electrical circuit diagram HM270V ...
Страница 157: ...Technical data Electrical circuit diagram 156 ...
Страница 158: ...Technical data Electrical circuit diagram 157 ...
Страница 159: ...Technical data Electrical circuit diagram 158 ...
Страница 160: ...Technical data Electrical circuit diagram 159 ...
Страница 166: ...Technical data 165 Dimensions Indoor unit 32 32 55 95 65 52 185 40 42 645 30 60 1760 350 337 127 500 550 Dimensions ...