Midea Mini C Series Service Manual page 77

Mini C Series VRF 50/60Hz
2.20 P8: Typhoon protection (For all models)
2.20.1 Digital display output
P8
2.20.2 Description
 P8 indicates strong wind protection.
 The system stops running.
 Error code displayed on the outdoor unit PCB.
2.20.3 Trigger / recover condition
 Trigger condition:
Fan speed ≥400rps when the outdoor unit is not start up. Or fan speed over 400rps for 90S when outdoor unit stop for
malfunction.
 Recover condition: Detect the fan speed < 400rps for more than 120S.
 Reset method: Resume automatically.
2.20.4 Possible causes
 There is strong wind around the outdoor unit.
 DC fan motor is damaged.
 Main PCB damaged.
2.20.5 Procedure
Check history fault
code to analyze
Notes:
1. P8 protection recovers in 2 minutes when the strong wind stops.
76
Whether the fan blade was blow to high
speed in standby
Yes Power off for 3 minutes and then repower
on to confirm whether the fault is cleared
Power off and pull up CN17(white) and
CN19(black) of DC motor wire, repower
on to confirm whether report E6 code
protection
Check whether DC motor is normal
DC motor is damaged
P8
Yes
No
No
No
Yes
No
Trigger the protect
function, Wait unit the
1
strong wind stops
ODU main control
board damaged
Yes