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This video demonstrates troubleshooting with the wall controller for the LiftMaster industrial D.C. commercial door trolley and hoist styles operators models TDC JDC and JHDC.
This video is intended for demonstration purposes only. The procedures demonstrated should only be performed by trained, professional installers and service technicians. Safe operation and servicing requires that you follow all instructions and safety advisories found in the manual.
To locate a trained, professional installer or service technician go to LiftMaster.com/locate-a-dealer.
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