Troubleshooting Si10-417
150 Service Diagnosis
Check
No.02
1. Check connector connection.
2. Check motor control voltage output (pins 2-1).
5.4.2 Limit Switch Continuity Check
Check
No.3
Remove the front grille. The limit switch is located at the
left side of the drain pan assembly. Check the continuity
of the switch connection.
∗ The shutter can be opened and closed with hand.
Keep the shutter open and closed all the way for
each continuity check steps.
5
4
3
2
1
Motor power supply voltage
Unused
Unused
P.0V (reference potential)
Motor control power supply
S202
(R1073)
Tester
Limit switch
Forward
Upward
Shutter status
Continuity
Closed
No continuity
Open
Continuity
(Q0363)
Si10-417.fm Page 150 Wednesday, September 22, 2004 6:38 PM
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