QKS Door Operator

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#4734 - 10/01/12 04:18 PM Re: QKS Door Operator [Re: E-man]
Joined: Oct 2012 Posts: 3 Allan stranger
Allan stranger Joined: Oct 2012 Posts: 3	Common problem with the QKS910 Schindler door controller is failure of the Darlington power transistor. It's gain drops to zero after it overheats when the doors are jammed open

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