Midea MC-SU30-RN1L Service Manual

Aqua Tempo Super II
201709 65
Part
4 - Diagnosis and Troubleshooting
4.10 P1 Troubleshooting
Digital display output 4.10.1
Description 4.10.2
 P1 indicates suction pipe low pressure protection. When the suction pressure falls below 0.05MPa, the system
displays P1 protection and all units stop running. When the pressure rises above 0.15MPa, P1 is removed and normal
operation resumes. When P1 error occurs 5 times in 120 minutes, a manual system restart is required before the
system can resume operation.
 Error code is displayed on main PCB and user interface.
Possible causes 4.10.3
 Low pressure switch not connected properly or has malfunctioned.
 Insufficient refrigerant.
 Low pressure side blockage.
 Poor evaporator heat exchange in heating mode.
 Insufficient water flow in cooling mode.
 Main PCB damaged.

Midea MC-SU30-RN1L Specifications

General

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