Maintenance:
Monthly Maintenance:
1.With door fully closed, manually operate the door with the emergency disconnect in the manual door oper- ated position. If the door feels unbalanced or binds, have a qualified service person repair or make adjustments to the door.
2.Perform the contact/obstruction tests. See Step 29 for the contact/obstruction test instructions. Inability to activate a door using the transmitter or wall station may be caused by a weak or dead battery. Press and hold the activation button on either the transmitter or the wall station. If the LED does not light, this is an indica- tion that the battery is weak or dead. Replace the battery.
NOTE: Dispose of dead batteries properly.
Battery replacement:
Insert a coin in the coin slot of the transmitter or wall station and twist coin to access the dead battery. Replace the battery, being careful to match the positive (+) symbols on the circuit boards with the battery.
COIN SLOT
LED
COIN SLOT
NOTE: Use only MN21 or equivalent
LED
NOTE: Some transmitters use two CR2016 or equivalent batteries while others use a single MN21 or equivalent battery.
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