Production Description

Control failure
Parts and causes: the relay (contactor) contact of the garage door is stuck, the travel microswitch fails or the contact piece is deformed, the fastening screw of the sliding block is loose, and the screw of the backup plate is loose, so that the sliding block or nut cannot move with the rotation of the screw rod, the transmission gear of the limiter is damaged, and the upper and lower keys of the button are stuck.
Treatment method: replace the relay (contactor); Replace microswitch or contact piece; Tighten the slider screw and reset the backup plate; Replace the transmission gear of the stopper; Replace the button.

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