Midea Aqua Tempo Super Series

Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-201606
83
7) Power supply phase sequence malfunction
8) Communication malfunction
Power supply phase sequence
malfunction.
Communication malfunction
Yes
Inform the customer service
center.
Phase sequence error.
Lack of phase.
Phase lack protector is broken.
PCB mistakes to alarm.
No
Yes
Adjust connecting wire.
No
No
No
Yes
Check power supply.
Yes
Yes
Replace phase lack
protector.
Replace PCB.
Inform the customer service
center.
No power input to unit or wired
controller.
Communicating wire malfunction.
Address repeat.
PCB mistakes to alarm.
The attachments of unit have
strong electromagnetic
interference.
Replace PCB.
Yes
Inspect power supply.
Yes
Yes
Inspect communicating
wire.
Adjust address.
Yes
Yes
Yes
Reduce electromagnetic
interference.
No
No
No
No
No