Midea MGA-D10/N1 Manual page 43

Troubleshooting
P6: Plate heat exchanger low temperature protection
LED indicates P6
Judge 1: Check whether the temperature-sensitive kit
at the plate heat exchanger side gets faulty
Judge 2: The heat exchange of water side is
Judge 3: Check whether the circulation water is
Judge 4: Check whether the FCU are not started.
42
No
insufficient
No
insufficient
No
Yes
Replace the temperature-sensitive kit
Yes
Clean the water side heat exchanger or pipe
Yes
Refill water periodically
Yes
MCAC-UTSM-2008-11
Start the FCU
Outdoor Unit