Midea MC-SU30-RN1L

Aqua Tempo Super II
201709 59
Part
4 - Diagnosis and Troubleshooting
Procedure 4.6.4
E9
Water flow switch connection on main
PCB is loose
1
Yes
Ensure the switch is connected properly
No
Water flow is insufficient
2
Yes
Check the water piping and valves. Make
sure the water piping is clean, there is no
air in the water piping and all valves are
open. Make sure the water pump
capacity is enough.
No
Water flow switch is damaged
Yes
Replace the water flow switch
No
Replace main PCB
Note:
1. Water flow switch connection is port CN44 on the main PCB (labeled 31 in Figure 4-2.1 in Part 4, 2.2 “Outdoor unit main PCB”).