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GE Dishwasher · Error Code
CODE C4 · also shows C-4

GE C4Overfill / leak — flood float tripped

A GE C4 means the dishwasher's flood float tripped — it sensed an overfill or a leak and cut off to protect your floor. Often it's just too much water sitting from a slow drain, or a stuck float. Check the free stuff: clear the filter/drain so water isn't pooling, and make sure the float moves freely. If water keeps collecting, the water inlet valve may be leaking through.

🔧 From our repair bench: C4 is a flood-float trip — clear the drain so water isn't sitting, and make sure the float isn't stuck up before you suspect the valve.

🐜 Straight talk: this points you at the likely cause — it's not a guarantee, and every machine is different. Cut the power (and shut off gas or water) before you touch anything, test to confirm the part is actually bad before you buy, and if it's beyond you, get a pro. No shame in that.

What the code means

C4: Overfill / leak — flood float tripped

Overfill / leak — flood float tripped.
Most likely causes
  • Overfill
  • Leak Into Base
  • Float Switch
The 2-minute test → Confirm the fill level; check the flood float + look for a leak.
The kit

The Tools to Test + Fix With

You don't need a shop full of tools — you need these. The multimeter is the one that pays for itself the first time it stops you buying the wrong part on a fault code.

Digital multimeter

Test a suspect part for continuity BEFORE you buy — the single best way to avoid replacing the wrong thing on a fault code.

🔎 On Amazon →

Nut driver set (¼" + 5⁄16")

Most appliance panels are held on with ¼" and 5⁄16" hex screws.

🔎 On Amazon →

Screwdriver set (Phillips/flat/Torx)

Covers the odd panel screw and the Torx fasteners many brands use.

🔎 On Amazon →
Fix it — two honest options

The Fix — Free Checks First, Then the Part

Work top-down: the free checks before you spend a dime, and test to confirm the part is actually bad before you buy. When it is a part, you get both options — the genuine OEM part sourced through us and shipped to your door, or a budget aftermarket part on Amazon. Your call.

Free fixFree

No part — clear the drain & free the float

Clean the filter/sump so water drains, and check the flood float moves up and down freely (not stuck by debris). Clears many C4 codes.

✅ No part needed — try this first
Moderate DIY$20–55

Water inlet valve

If water keeps collecting even when the drain is clear, the inlet valve is leaking through. Shut the water off first.

🔧 Genuine OEM — through us → 🔎 Budget on Amazon →

Prices shown are typical aftermarket ranges and vary by brand and model — genuine OEM is priced by quote when you request it. Amazon links open a search so you can match your exact model number; as an Amazon Associate, Appliance Ant may earn from qualifying purchases at no extra cost to you. Always confirm the part fits your model.

Can you fix it yourself?

Safe to Try · Know the Risk · Call a Pro

General guidance, not professional advice. Always unplug the appliance (or shut off the gas/water) before you check anything. If it feels beyond you, that's exactly when to get a pro.

✅ Safe to try yourself

  • Clean the filter/sump so water isn't pooling and re-tripping the float.
  • Check the flood float moves freely and isn't jammed by debris.
  • Watch whether water keeps filling with the door shut (points to the valve).

⚠️ Doable — know the risk

  • Water inlet valve replacement — moderate; power and water off.

🛑 Call a pro — don't touch this

  • A leak reaching the wiring, or a control fault.
Is it worth fixing?

The Honest Call

Usually cheap — free if it's a stuck float or a drain clear, $20–55 if the inlet valve is leaking through.

In Middle Tennessee or Louisiana?

Don't want to DIY it? Our own family of technicians will come clear that C4 for you — honest flat pricing, usually same-day, 4.5★ from 1,000+ neighbors.

🔧 Get it fixed by our techs →
We come to:Walker, LABaton Rouge, LAHammond, LANew Orleans, LANashville, TNMurfreesboro, TNClarksville, TNFranklin, TN
FAQ

People Also Ask

What does C4 mean on a GE dishwasher?
The flood float tripped — the dishwasher sensed an overfill or leak and shut off to protect your floor. Often just water pooling from a slow drain or a stuck float; sometimes a leaking inlet valve.
How do I fix a GE C4 code?
Clean the filter and sump so water drains properly, and make sure the flood float moves freely. If water keeps collecting even when the drain is clear, replace the water inlet valve.
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