Diagnostic Guide

Bilge Pump Running Constantly

A bilge pump that runs all the time means water is coming in faster than the pump can keep up at the float-switch level — or the float switch is stuck.

A bilge pump that runs all the time means water is coming in faster than the pump can keep up at the float-switch level — or the float switch is stuck.

What to Check

1

Lift the float

If the pump runs only when float is up, water is genuinely accumulating — find the source.

2

Check stuck float

Debris under the float keeps pumps running dry — burns the motor out fast.

3

Trace the source

Shaft seal, AC condensate, rain through hatch, or fresh-water pump leak.

When to Call Us

Get a proper diagnosis before you burn out the pump. We trace the source, fix the leak, and verify the float-switch and pump are working correctly.

Services That Fix This

Ready to Get Your Boat in Prime Condition?

Bring your boat to our covered shop in San Rafael for full-service repair, maintenance, paint, and refits. Call (415) 524-5194 or send a message — we respond same day.

Call (415) 524-5194