An operator counter tracks door cycles: one opening plus one closing equals one cycle. To track the usage of a garage door, users often install counters on the operators.
One of the more common reasons to track door cycles is to schedule maintenance before the door or the operator needs repairs.…
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The logic board acts as the brain of the opener, telling it when to open and shut the garage door. In this video, we show you how to replace a LiftMaster logic 5 control board.
Engineers at the Chamberlain Group have designed their LiftMaster operators with error codes that reduce the time required to troubleshoot and repair equipment.
Operator product manuals cover a variety of error codes. In this video, we cover the four major problems that occur in an estimated 80% of operator failures.…
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In most commercial operators sold in the last century, there were two voltages: the incoming line voltage, and the lower secondary voltage from the transformer. This was usually 24-28 volts with alternating current. On rainy days in my early years, this lower voltage would often produce a noticeable shock.…
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Installers and salesmen order sectional door operators to match the operator voltages to the voltages in the buildings. Sometimes salesmen order operators with the wrong voltage, and then need to change the operator voltage. This can be done by changing the wires at the motor, as long as the building voltage is 110 or 220 volts.…
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When I first got into the door business, the most common wiring for a 110-volt circuit consisted of a four-wire motor and two power leads. The two power leads ran straight to the motor. The other wires from the motor could go to either power lead.…
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Huge inventory of torsion springs for same or next day shipping! Here you will find all you need in the most common sizes of 1 3/4," 2," 2 1/4," and 2 5/8" inside diameter springs. Larger 3 3/4" and 6" inside diameter commercial and industrial springs may require a day or two to ship. You'll also find TorqueMaster Springs, Extension Springs, Self-Storage door springs, steel rolling door springs and springs for one piece single panel doors.
Shelves packed with every part you need to fix your doors.
Please note. Shipping times and costs have changed. Normal transit times are currently not guaranteed, even on next day and second day shipments. Shipping prices on items over eight feet have more than tripled.
