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GE · GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel

GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel C4 Error Fix: Service Code — Float Switch Error

Diagnostic code C4 indicates the float switch (overflow sensor) is stuck — the float assembly in the bottom of the tub may be stuck in the raised position (often due to food debris), falsely indicating an overflow condition; clean around the float mechanism

Medium severity2 fixes available✨ Free fix available

Quick Answer

Error C4 on the GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel means: Service Code — Float Switch Error. The top-ranked community fix is “Replace the Float Switch Assembly” (medium difficulty, ~45 min, DIY cost: $15-$25). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · dishwasher

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many dishwasher repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $120-$180.

Other GE Models with Error C4

GDF535PGRSS 24 in Front Control with Steam Prewash

dishwasher · 2 fixes

GDF630PSMSS 24 in Front Control Dishwasher

dishwasher · 2 fixes

GDF645SSNSS 24 in Front Control with Steam & Sanitize

dishwasher · 2 fixes

GDP670SYVFS 24 in Top Control Smart with Dry Boost

dishwasher · 2 fixes

GDT226SSLSS 24 in Built-In Dishwasher with Piranha Disposal

dishwasher · 2 fixes

GDT550PYRFS 24 in Top Control with Sanitize Cycle

dishwasher · 2 fixes

GDT630PYRFS 24 in Top Control with Dry Boost

dishwasher · 2 fixes

GDT665SSNSS 24 in Front Control Dishwasher 50 dBA with Steam and Piranha Hard Food Disposer

dishwasher · 2 fixes

Other GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel Error Codes

BEEP-1

Single Beep + Flash — Water Fill Issue

2 fixes

BEEP-2

Two Beeps — Door Not Latched

2 fixes

BEEP-3

Three Beeps — Water Temperature Issue

2 fixes

BLINK-1

Start/Reset Light Flashing — Cycle Interrupted

2 fixes

BLINK-7

Start Light Blinks Seven Times — Heating Element Fault

2 fixes

BLINK-ALL

All Indicator Lights On But No Response

2 fixes

Service Code — Fill Valve Stuck Open

2 fixes

Service Code — Fill Valve Stuck Closed

2 fixes

People Also Ask About GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel Error C4

What does error code C4 mean on a GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel?

Error code C4 on the GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel means: Service Code — Float Switch Error. Diagnostic code C4 indicates the float switch (overflow sensor) is stuck — the float assembly in the bottom of the tub may be stuck in the raised position (often due to food debris), falsely indicating an overflow condition; clean around the float mechanism

How do I fix error code C4 on my GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel?

The most successful fix is "Replace the Float Switch Assembly" (medium difficulty, ~45 minutes). Estimated DIY cost: $15-$25. HomeMD has 2 community-ranked fixes for this error.

Is error code C4 on a GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel serious?

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Can I fix GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel error C4 myself?

Yes — the top-ranked community fix ("Replace the Float Switch Assembly") is rated medium difficulty and takes about 45 minutes. Tools needed: T20 Torx screwdriver, Needle-nose pliers.

How much does it cost to repair GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel error C4?

DIY cost: $15-$25. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel have?

The GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel has 8 other known error codes, including: BEEP-1 (Single Beep + Flash — Water Fill Issue), BEEP-2 (Two Beeps — Door Not Latched), BEEP-3 (Three Beeps — Water Temperature Issue), BLINK-1 (Start/Reset Light Flashing — Cycle Interrupted), BLINK-7 (Start Light Blinks Seven Times — Heating Element Fault), and 3 more.

Which other GE models have the C4 error?

Error code C4 also appears on 8 other GE models: GDF535PGRSS 24 in Front Control with Steam Prewash, GDF630PSMSS 24 in Front Control Dishwasher, GDF645SSNSS 24 in Front Control with Steam & Sanitize, GDP670SYVFS 24 in Top Control Smart with Dry Boost, GDT226SSLSS 24 in Built-In Dishwasher with Piranha Disposal, GDT550PYRFS 24 in Top Control with Sanitize Cycle, and 2 more. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel have?

The GE GDP630PYRFS 24 in Front Control Built-In Dishwasher 50 dBA Stainless Steel has 8 other known error codes:

BEEP-1 — Single Beep + Flash — Water Fill Issue (2 fixes)
BEEP-2 — Two Beeps — Door Not Latched (2 fixes)
BEEP-3 — Three Beeps — Water Temperature Issue (2 fixes)
BLINK-1 — Start/Reset Light Flashing — Cycle Interrupted (2 fixes)
BLINK-7 — Start Light Blinks Seven Times — Heating Element Fault (2 fixes)
BLINK-ALL — All Indicator Lights On But No Response (2 fixes)
C1 — Service Code — Fill Valve Stuck Open (2 fixes)
C2 — Service Code — Fill Valve Stuck Closed (2 fixes)

Which other GE models have the C4 error?

Error code C4 also appears on 8 other GE models:

GDF535PGRSS 24 in Front Control with Steam Prewash (dishwasher) · 2 fixes
GDF630PSMSS 24 in Front Control Dishwasher (dishwasher) · 2 fixes
GDF645SSNSS 24 in Front Control with Steam & Sanitize (dishwasher) · 2 fixes
GDP670SYVFS 24 in Top Control Smart with Dry Boost (dishwasher) · 2 fixes
GDT226SSLSS 24 in Built-In Dishwasher with Piranha Disposal (dishwasher) · 2 fixes
GDT550PYRFS 24 in Top Control with Sanitize Cycle (dishwasher) · 2 fixes
GDT630PYRFS 24 in Top Control with Dry Boost (dishwasher) · 2 fixes
GDT665SSNSS 24 in Front Control Dishwasher 50 dBA with Steam and Piranha Hard Food Disposer (dishwasher) · 2 fixes

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