Sump pump won't turn on (float or power)

Prove power, then prove the pump by bypassing the float, then fix the float. Most residential pumps with a piggyback plug make this a two-minute test.

Cross-checked ~30 min easyBrands: All

Before you start

  • Never stand in water while handling plugs
  • Do not run the pump plugged straight in for more than a few minutes (overheat risk)

Diagnostic steps

Unlock all 4 steps with expected values

Full library + AI assistant for $34.90, one time.

Get lifetime access

OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

More sump & well pumps guides

Sump pump won't turn on (float or power) · OnCall Tech