Some Part Of Air Conditioner Does Not Operate - Sanyo SAP-K77GHAX Technical & Service Manual

9-3. Some part of air conditioner does not operate.

9-3-1. Only indoor fan does not run.
If you turn fan gently once or twice
by hand, can the fan turn ?
Check connectors to P.C.Board.
1. Measure resistance of indoor fan
motor winding.
2. Is the resistance OK ?
• Check fan motor capacitor.
Check fan motor capacitor.
9-3-2. Only flap motor does not run.
Measure resistance of flap motor
winding and check the connector.
9-3-3. Only outdoor fan does not run.
If you turn fan gently once or twice
by hand, can the fan turn ?
Check connectors to indoor unit
P.C.Board.
1. Measure resistance of outdoor fan
motor winding.
2. Is the resistance OK ?
Check fan motor capacitor.
Yes
Yes
Check fan casing
foreign matter on
inside.
No
Fan motor winding
burnout or foreign
matter in bearings.
When fan speed is changed, does
applied voltage between lead wires
BRN and WHT change as well ?
P.C.Board is defective.
Check fan casing
foreign matter on
inside.
No
Fan motor winding
burnout or foreign
matter in bearings.
Check connectors to outdoor fan
motor lead wires.
59
Remove foreign
matter or repair.
Repair or replace.
No
Remove foreign
matter or repair.
Repair or replace.