GE Dishwasher: error code

Professional Repair Guide

What is this symptom?

Experiencing an error code on your GE dishwasher? These alphanumeric fault codes indicate specific issues like drainage problems, temperature sensor faults, and more. The display interruptions signal an urgent need for diagnostics and repairs to restore normal operation.

Urgency: Medium

Important Tips for GE Models

  • Error codes like C1–C8, PF, Cup Open, LEAK DETECTED, 999 are specific diagnostic codes used by GE dishwashers detailed in official support documentation.

Possible Causes

Drain pump cycle exceeded threshold or drainage obstruction

How to Identify: Error codes C1, C2, C3, FTD/F56 appear; dishwasher won’t drain; standing water after cycle or long drain time. (products.

Part: Drain pump, drain hose, air gap

Float switch stuck or clogged float/sump

How to Identify: C4 or C5 with symptoms of improper water sensing or dual fill events; float stuck low/high; debris visible under float cover. (products.

Part: Float switch assembly

Inlet water temperature too low or temperature sensor failure

How to Identify: C6/C7 codes; cold water entering dishwasher or thermistor circuit errors; error persists after reset. (products.

Part: Water temperature sensor/thermistor, inlet water heating

Detergent dispenser blocked or not closed

How to Identify: C8 or Cup Open code; detergent cup does not open/close; physical obstruction present. (products.

Part: Detergent dispenser assembly

Water leak detected

How to Identify: LEAK DETECTED or 999 codes; water beneath dishwasher or wet floor; cycle aborted. (products.

Part: Leak sensor/flood tray components

Power interruption event

How to Identify: PF code appears after power outage; dishwasher behaves normally after reset. (products.

Part: Control board/power supply

DIY Solutions

Clean Drain Components and Reset

Moderate 20–40 minutes
Tools Needed: screwdriver, bucket, gloves
  1. Turn off power and water to dishwasher.
  2. Check and clean air gap (if installed) and drain hose for clogs or kinks.
  3. Remove standing water and inspect sump and drain pump for debris.
  4. Restore power and run a short cycle to test drainage.
  5. If error persists, perform a hard reset by turning off circuit breaker for 30–60 seconds then restart dishwasher.
⚠️ Safety First: Disconnect power before accessing internal components.

Check and Unstick Float Switch

Moderate 15–30 minutes
Tools Needed: screwdriver, flashlight
  1. Turn off power at breaker.
  2. Open dishwasher and locate float assembly (front left corner under float cover).
  3. Inspect for debris; gently lift float up and down to ensure free movement.
  4. Clean around float with cloth and remove debris.
  5. Restore power and rerun a cycle to see if error clears.
⚠️ Safety First: Ensure power is off to avoid electrical hazard.

Clear Detergent Dispenser Blockage

Easy 5–10 minutes
Tools Needed: none
  1. Open dishwasher door and access detergent compartment.
  2. Remove any utensils or items blocking the detergent cup.
  3. Close and latch the dispenser.
  4. Restart dishwasher to see if error clears.

Next step

Choose the next step for error code

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Drain Hose

Carries waste water from the drain pump to your home's standpipe or sink drain.

Typical part-only price
$15 - $30
DIY difficulty
Easy
Estimated time
15-30 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other parts options

Check related components first; use model search as a fallback.

Possible related component

Drain Pump

Pumps waste water out of the appliance during the drain cycle.

$35 - $80 · Easy · 15-30 mins

Check fit & price
Possible related component

Float Switch

Detects the maximum water level to prevent overflow and potential flooding.

$15 - $40 · Easy · 10-20 mins

Check fit & price
Possible related component

Thermistor

Measures precise temperature changes and sends resistance feedback to the control board.

$15 - $35 · Easy · 15-30 mins

Check fit & price
Model number required

Model-compatible Dishwasher parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Dishwasher Cleaner and Descaler

Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.

View maintenance supply
Maintenance supply

Braided Dishwasher Inlet Hose

For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.

View maintenance supply

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.

Professional Repairs

Replace Temperature Sensor/Thermistor

Estimated Cost: $50–$150 parts; $150–$300 labor

Repair Leak Source and Replace Faulty Leak Sensor

Estimated Cost: $100–$300

Drain Pump or Main Control Board Replacement

Estimated Cost: Pump $80–$200; board $150–$400 parts; labor $150–$400

When to Call a Professional

Error persists after DIY troubleshooting steps
Water leak with wet floor or LEAK DETECTED/999 error
Temperature sensor failures (C7) not cleared by reset

Preventive Maintenance

  • Clean air gap and drain hose: Drain‑related error codes and clogs
    Frequency: every 3–6 months
  • Run hot water at sink before starting dishwasher: Low inlet water temperature errors (C6)
    Frequency: each use
  • Check and clean float area: Float sticking leading to fill and drain issues
    Frequency: monthly

Frequently Asked Questions

Why is my GE Dishwasher error code?
Error codes can indicate drainage problems, temperature sensor faults, blocked detergent dispensers, or even power interruptions.
How do I fix GE Dishwasher error code myself?
You can clean drain components, check the float switch, and clear any detergent dispenser blockages.
How much does it cost to fix error code?
Professional repairs can range from $50 to $400 depending on the issue, such as sensor replacement or pump repairs.
When should I call a technician for error code?
If DIY solutions don't resolve the issue or if the error persists, it's time to consult a technician for professional diagnosis and repair.

References & Sources

Community Analytical Insights

Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions

Common Issues Reported by Users

  • Heater malfunction (1 mentions)
  • Pressure sensor issue (1 mentions)
  • Water inlet valve failure (1 mentions)

User Suggested Solutions

Limited-source guidance; percentages and success-rate claims are not shown
View Sources

Data compiled from real discussions on r/appliancerepair and r/Appliances:

  1. general electric dishwasher error code E3
  2. GE Dishwasher H2O Error (cleaned/replaced pressure sensor & ...

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