May be due toDescriptionText in displayAlarm,
outdoor
unit
Alarm, in-
door unit
- Interruption in voltage supply to
the inverter.
Temporary fault in inverter, 3 times
within 2 hours.
Inverter alarm type II128445
- Defective EMC board (TDI)
- Defective compressor
- Interruption in voltage supply to
the inverter.
One compressor phase has been
missing 3 times within 2 hours or
missing continuously for 1 hour.
Inverter alarm type II130447
- Unsuccessful start attempt
- Start fault, compressorCompressor has run at lower speed
than permitted 3 times within 2
hours.
Inverter alarm type II132449
- Low voltage
Voltage fault to F2120.Current from inverter to compressor
temporarily high, 3 times within 2
hours.
Inverter alarm type II136453
Problem with voltage in to F2120.Capacity from inverter temporarily
too high, 3 times within 2 hours.
Inverter alarm type II138455
Incoming voltage too low (1x230V
product).
Too low incoming voltage temper-
ature to F2120.
Inverter error140467
- Problem in cooling circuitIncorrect pressure setup during
compressor start between BP8 and
BP9
Failed start184501
- Defective pressure sensors
Low voltage, compressor limitCompressor has run at lower speed
than permitted 3 times within 2
hours.
Compr. speed too low186503
F2120Chapter 5 | Troubleshooting24