This is the button assembly on its own, the working guts of a central vacuum wall control station, supplied without the faceplate or the back-box it normally sits inside. If the surrounding trim and mounting box on your wall station are still in good shape, replacing just this module is the more direct fix than tearing out the whole station.The keypad carries the low-voltage signal from your wall press to the power unit's control circuit, telling the motor to start or stop. A worn or failed keypad typically shows up as a button that needs several presses to register, a station that no longer starts the unit at all, or a start signal that does not reliably shut off again. Included: Keypad and button module only, no faceplate or back-box Function: Low-voltage start and stop signal to the power unit Symptoms it addresses: Unresponsive button, multiple presses needed, stuck-on signal Install: Drops into the existing faceplate and back-box at the wall station Before ordering, check that the issue is really the keypad and not the low-voltage wire feeding it. A loose connection at the back-box terminal can mimic a dead button just as convincingly as a worn keypad, and it costs nothing to check with the faceplate off first. If the wiring looks solid and the button still will not respond, the keypad itself is the more likely fault.Central vacuum wall stations see repeated mechanical presses over many years, so the button contacts inside wear out well before the plastic trim around them shows any age, which is exactly the case this replacement module covers. Listed under SKU SWC555M.
