Error code:
P4
Reason:
Safety shutdown of inverter controller. Internal system monitoring triggered (e.g. communi-
cation problem between board and compressor, the compressor speed is not OK)
Cause:
n
Faulty electrical connections
n
Inverter regulation on board defective
n
Condenser fan motor defective
n
Compressor defective
n
Control board defective
Check the electrical connection between the
control board and compressor. Are these cor-
rectly implemented?
YES
Establish a proper connection.
NO
Check the inverter controller. Is this functional?
NO
Replace the control board.
YES
Check the condenser fan motor. Is it OK?
NO
Follow the instructions for troubleshooting fault
F5
YES
Check the winding resistances of the com-
pressor. Are they OK?
NO
Replace the compressor
YES
Replace the control boards of the outdoor unit.
Check individual components
Check the temperature probes
Disconnect the temperature probe from the control
board and measure the resistance on the plug's
contacts.
1
Fig. 60: Check temperature probes
1: Multimeter
61
Содержание RXT 1053 DC
Страница 62: ...Resistance values for probes T1 T2 T3 and T4 K Ohm K Ohm K Ohm K Ohm REMKO RXT DC 62 ...
Страница 63: ...Resistance values for probe T5 K Ohm K Ohm K Ohm K Ohm 63 ...
Страница 70: ...No Designation 31 Cooling fin 32 Fin motor 33 Refrigerant connections cover REMKO RXT DC 70 ...
Страница 77: ...No Designation 31 Shut off valve mounting plate 32 Condensate tray heating 33 Crankcase heating 77 ...
Страница 80: ...No Designation 31 Crankcase heating 32 Terminal block cover 33 Side panel right REMKO RXT DC 80 ...
Страница 82: ...REMKO RXT DC 82 ...
Страница 83: ......