1
0
.3.
3
Outdoor DC fan motor fault
Outdoor display LED1 flash 9 times
Method of DC fan motor is detected by checking the fan running condition and so on
Supposed
Ƶ
DC fan motor protection dues to the DC fan motor faulty
Causes
Ƶ
DC fan motor protection dues to faulty PCB
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage
may be occurred.
Check whether Terminal on the outdoor
mainboard is well inserted.
Is it normal?
Yes
NO
Fasten the connection
Power on the unit and turn into Cool
mode. check whether the motor can
running
˛
Yes
Measure whether the voltage between 3
and 6 is 0-5V approx.
Is it normal?
N0
The motor of the outdoor unit is damaged
and needs replacing.
1.Measure whether the voltage between 1 and 3 of the
motor socket on the PCB is DC310V approx.
2.Measure whether the voltage between 3 and 4 of the
socket is DC15V approx.
3.Measurewhether the voltage between 5 and 3 of the
socket is 0-6v approx.
NO
Is it normal?
The mainboard of the outdoor unit is
damaged and needs replacing
N0
Yes
Yes
Seivice diagnosis
Domestic air conditioner
36
Summary of Contents for 1U26QE4ERA
Page 14: ...Operation range Domestic air conditioner 5 Operation range 12 10 0 20 16 32 10 20 15 ...
Page 64: ...Circuit diagrams 62 Domestic air conditioner ...
Page 65: ...Circuit diagrams Domestic air conditioner 12 2 Module board Circuit Diagram 63 ...
Page 70: ...Removal Procedure 2 Removal of Electrical Box 3 Domestic Air Conditioner ...