108
Check of HPS
Infinity
0
Ω
Yes
No
1. Disconnect the connector CN681.
2. Check the resistance of HPS 1 minute after the outdoor unit power supply was turned OFF.
Check the resistance between
each terminal.
Reconnect CN681.
Turn ON the power supply to the indoor and outdoor units.
3 minutes later, start EMERGENCY OPERATION.
Is HPS protection displayed
immediately after compressor
starts?
Replace HPS.
Replace the electronic control P.C. board, control
P.C. board or the outdoor control P.C. board.
Normal
• When the operation frequency does not go up from lowest frequency.
MXZ-3C68/4C71/4C80/5C100/6C120/6C122VA
MXZ-4C80/5C100VA2
MXZ-3C/4C/5C
MXZ-6C120
MXZ-6C122
CN681
Electronic
control P.C. board
Control P.C. board
Outdoor control
P.C. board
OBH584G
Summary of Contents for MXZ-2C30VA
Page 24: ...24 WIRING DIAGRAM 6 MXZ 2C30VA MXZ 2C40VA MXZ 2C52VA OBH584G ...
Page 25: ...25 MXZ 3C54VA OBH584G ...
Page 26: ...26 MXZ 3C68VA OBH584G ...
Page 27: ...27 MXZ 4C71VA OBH584G ...
Page 28: ...28 MXZ 4C80VA OBH584G ...
Page 29: ...29 MXZ 4C80VA2 OBH584G ...
Page 30: ...30 MXZ 5C100VA OBH584G ...
Page 31: ...31 MXZ 5C100VA2 OBH584G ...
Page 32: ...32 MXZ 6C120VA E1 OBH584G ...
Page 33: ...33 MXZ 6C120VA E2 OBH584G ...
Page 34: ...34 MXZ 6C122VA E1 OBH584G ...
Page 35: ...35 MXZ 6C122VA ER1 OBH584G ...
Page 36: ...36 MXZ 6C122VA E2 OBH584G ...
Page 37: ...37 MXZ 6C122VA ER2 OBH584G ...