Service diagnosis
31 Domestic air conditioner
10.3.3 Indoor DC fan motor malfunction
Indoor Display
E14
Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine
Malfunction abnormal fan motor operation
Detection
Malfunction when the detected rotation feedback signal don’t received in 2 minutes
Decision
Conditions
Supposed Operation halt due to breaking of wire inside the fan motor.
Causes
Operation halt due to breaking of the fan motor lead wires
Detection error due to faulty indoor unit PCB
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or else
parts damage may be occurred.
Check whether
terminals on indoor
pcb is well
Pull out the term inals on
the indoor mainboard and
reinsert them.
Turn off power switch,and pull out the fan motor.
Measure the resistances between balck line (0V)and white
line(15V) ,balck line (0V)and red line(310V) of indoor fan motor .
The
resistances range is
between 30K
Ω
with
2M
Ω
The
indoor fan
motor is damaged
and need replace
NO
YES
NO
YES
the ind oor pcb is dam aged
and need replace
Summary of Contents for AS35TAMHRA-C
Page 12: ...Piping diagrams Domestic air conditioner 5 Piping diagrams 10 ...
Page 27: ...Dimensional drawings 24 Domestic air conditioner 8 Dimensional drawings 9 Center of gravity ...
Page 44: ...Circuit diagrams 43 Domestic air conditioner 11 Circuit Diagrams ...
Page 45: ...Circuit diagrams 44 Domestic air conditioner ...
Page 51: ...three 6 Removal Procedure 4 Domestic Air Conditioner Remove the casing 1 2 3 ...
Page 54: ...2 7 Domestic Air Conditioner Removal Procedure Lift up the exchanger and remove it 1 ...
Page 55: ...Removal Procedure 8 Domestic Air Conditioner motor cover motor cover ...
Page 56: ...Removal Procedure 9 Domestic Air Conditioner ...
