Common problems and how a plumber fixes them
| The problem | Usual cause | What the plumber does |
|---|---|---|
| Pump hums but no water moves | Clogged intake, jammed impeller or stuck check valve | Clears or replaces the part |
| Pump won't start | Stuck float, tripped GFCI or failed motor | Frees the float or replaces the pump |
| Pump runs nonstop | Undersized pump or failed switch | Replaces the switch or upsizes the pump |
| Water on the floor during a power cut | No backup pump | Installs a battery or water powered backup |
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Common sump pump problems
- Pump runs but doesn't remove water: clogged intake, failed impeller or a stuck check valve
- Pump won't turn on: stuck or tangled float switch, tripped GFCI or a burned out motor
- Pump runs constantly: undersized pump, high water table or a broken switch
- Loud grinding or rattling: worn bearings or debris in the pit
- Frozen or blocked discharge line in winter
Sump pump installation and replacement
Most sump pumps last roughly 7 to 10 years. When it's time for a new pump, ask the contractor about pump capacity for your basement, a new check valve, and a battery backup or water powered backup pump, because the main pump is most likely to fail during the same storm that knocks out power.
Choosing a sump pump
Submersible pumps sit in the pit and run quieter, while pedestal pumps sit above the water and are easier to service. Cast iron housings handle heat from long run times better than plastic ones. A vertical float switch is less likely to snag on the pit wall than a tethered float. If your pump runs often during storms, ask the contractor whether a higher capacity pump or a second pump makes sense.
Test your sump pump before spring
Searches for sump pump repair in Indianapolis spike in March, when snowmelt and spring rain raise the water table. Test the pump each February: pour a bucket of water into the pit and check that the pump starts, empties the pit and shuts off. Also check that the discharge line outside is clear and carries water well away from the foundation.
How this works: Plumbers in Indianapolis Today is a referral service. When you call 317-314-8486, we connect you with an independent, licensed plumbing contractor who serves your area. The contractor quotes, performs and stands behind the work, not us.
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How much does sump pump repair cost?
A switch or check valve repair costs much less than a full pump replacement, and adding a battery backup adds to the total. The contractor will inspect the pump and quote before starting.
Should I repair or replace my sump pump?
If the pump is older than about seven years, or the motor has failed, replacement is usually the better choice. A stuck float or a bad check valve on a newer pump is normally worth repairing.
Is a sump pump failure an emergency?
Yes, if water is rising in the basement or rain is forecast. Call 317-314-8486 and keep away from standing water near outlets or appliances.