LiftMaster GH GT- Logic 4 Installation Manual - Page 35
Feature, Benefit, To Program, SELECTOR DIAL, Factory Defaults - logic 4 manual
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MAXIMUM RUN TIMER (MRT) Feature: The operator can learn the time it takes to open or close the door plus and an additional 10 seconds. Benefit: If the operator does not meet its open or close limit within the set time it will stop, limiting damage to the door and operator. To Program: NOTE: The default setting for the MRT is 90 seconds. In the event the application requires the MRT be manually learned for a longer duration follow steps below. 1. Start with the door in the closed position. 2. Set the selector dial to PROGRAM. 3. Press and release the MRT button on logic board. 4. Press the OPEN button and wait for the door to reach the full open limit. 5. Once the door has reached the open position, programming is complete. 6. Turn dial to desired wiring type. NOTE: To reset MRT only, turn selector dial to program and press and hold the MRT button until the MAS led flashes rapidly. SELECTOR DIAL T E2 D1 C2 B2 TS FSTS DIAG OPTN PROG Operation will vary depending on wiring type T E2 D1 C2 B2 TS FSTS DIAG OPTN PROG RESETTING FACTORY DEFAULTS CLEARING MEMORY To reset most of the user installed settings back to factory defaults: 1. Turn the selector dial to DIAGNOSTIC. 2. Press and hold the STOP button for 5 seconds. The MAS LED will flash momentarily when the factory defaults have been restored. 3. Return the selector dial to the desired wiring type. Factory Defaults: a. Timer-To-Close = 0 seconds b. The Mid Stop is deactivated c. The Maintenance Alert System is deactivated d. The Maximum Run Timer is set to 90 seconds e. Car Dealer Mode is deactivated f. The remote controls will still be learned g. Remote control programming via the 3-button station h. The LiftMaster Monitored Entrapment Protection (LMEP) device will be unprogrammed NOTE: Life of Operator feature (Odometer/Cycle Counter) and programmed remote controls are not cleared. SELECTOR DIAL T E2 D1 C2 B2 TS FSTS DIAG OPTN PROG Operation will vary depending on wiring type T E2 D1 C2 B2 TS FSTS DIAG OPTN PROG PROGRAMMING Programming - Maximum Run Timer (MRT)/Factory defaults 35