Takeuchi TB 250 - The Air Flow Cannot be Changed

5-60
5
AIR CONDITIONER
TROUBLESHOOTING
D. The air flow cannot be changed
Notes:
1. Before inspection, turn off the starter switch and remove the fan switch connector.
2. After completion of repair work, make sure to reinstall the connectors removed for inspection.
Cannot be changed be-
tween 1 and 2.
Cannot
be changed be-
tween 1 and 3.
Cannot be changed be-
tween 2 and 3.
Cannot be changed between
1, 2 and 3.
Check for short circuits in
the blue/white and blue/
yellow. Short-circuited?
YES
Check
for short circuits in
the blue/black and blue/
white. Short-circuited?
YES
Check
for short circuits in
the blue/black and blue/
yellow. Short-circuited?
YES
Check
for short circuits in the
blue/white, blue/yellow and
blue/black. Short-circuited?
NO NO NO NO YES
Air
flow changeover
switch is faulty
Replace
the air flow
changeover switch
Repair the short cir
cuit(s)
Resistor is faulty
Replace the r
esistor