Beam / Smart PU371 Control ...
$49.99
Product details
Beam part 312300 is a 120-volt control board sold for the Beam PU371 and Smart branded central vacuum power units named in the title of this listing. It reads the low-voltage signal from a wall inlet valve, closing the circuit that starts the motor, then opens it again once the hose comes off and the inlet resets for the next use.
A worn board tends to show up as a unit that stays dead, one that starts and stops with no pattern, or one that ignores the inlet signal entirely while the motor still tests fine by itself when checked directly with a meter. Sitting between the wiring and the motor's power circuit, it fails more often than the motor does, which is why it is worth checking before assuming a motor problem.
Because the same board serves both label variants of this platform, either brand name on your existing unit points to the same part number, so there is no need to track down which name is printed on your housing before ordering. Still, confirm PU371 is the model shown on your nameplate, since other Beam power units use different boards entirely and a mismatch will not run correctly even if it mounts.
Check the nameplate rather than the housing label to be sure, since the outside branding tells you the product family but the nameplate model number is what actually determines which board fits, and that plate usually sits near the power cord or intake fitting on most units in this lineup.
- Part: 312300
- Fits: Beam PU371 and Smart central vacuum power units (confirm on your nameplate)
- Voltage: 120 volt
- Type: Control / circuit board