The LiftMaster 072A0057 FUSE, 250V, 1A is a manufacturer-specified replacement fuse used to protect the control circuitry of compatible LiftMaster operators. Intended for overcurrent protection on logic boards and accessory power circuits, this 1 amp, 250 volt fuse is used in select LiftMaster garage door openers, gate operators, and commercial door systems that call out part number 072A0057 or an equivalent 1A/250V fuse. It helps safeguard the opener’s electronics by interrupting power during a fault, supporting reliable operation in residential and commercial applications.
For proper use, match the rating exactly: 1A at 250V. Always disconnect power before servicing, replace only with the same rating, and verify compatibility by checking your unit’s parts list, service manual, or the fuse designation on the control board. Installation typically involves removing the blown fuse from its holder and inserting the new one; no programming is required. If the new fuse opens again, inspect for wiring faults, shorted accessories, or board issues before repeated replacement. This LiftMaster replacement fuse is a straightforward way to restore circuit protection and maintain dependable performance across compatible LiftMaster and Chamberlain Group systems.