Midea MC-SU30-RN1L Service Manual

Aqua Tempo Super II
201709 77
Part
4 - Diagnosis and Troubleshooting
4.13 P7 Troubleshooting
Digital display output 4.13.1
Description 4.13.2
 High temperature protection of air side heat exchanger refrigerant outlet temperature sensor or air side heat
exchanger refrigerant total outlet temperature sensor in cooling mode. When the air side heat exchanger refrigerant
outlet temperature is higher than 65°C or air side heat exchanger refrigerant total outlet temperature is higher than
62°C for more than 3 seconds, the system displays P7 protection and all units stop running. When the air side heat
exchanger refrigerant outlet temperature returns drops below 52°C , P7 is removed and normal operation resumes.
 All units stop running.
 Error code is displayed on main PCB and user interface.
Possible causes 4.13.3
 Air side heat exchanger refrigerant outlet temperature sensor or air side heat exchanger refrigerant total outlet
temperature sensor not connected properly or has malfunctioned.
 Fan motor wiring connection is wrong.
 Poor condenser heat exchange.
 Fan motor damaged.
 Main PCB damaged.

Midea MC-SU30-RN1L Specifications

General

Brand	Midea
Model	MC-SU30-RN1L
Category	Chiller
Language	English