How to Fix Whirlpool Dishwasher Error F03

Written by

⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.

Error Code: Dishwasher Difficulty: Moderate

Problem: Heating System Failure

⚖️ Repair Decision

⚠️ CHECK WARRANTY / AGE

$100 – $250 Range

How to Fix Dishwasher Error

🔧 Service Mode Tip: Measure heater resistance.

OEM Part #: W10518394

Estimated Market Price: $50 – $150

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Get the ‘Secret Service Mode’ Cheat Sheet for your Whirlpool model. Includes an easy-to-read list of every error code and quick diagnostic tips.

✅ Join 15,000+ DIYers • Instant PDF Download

Appliance Type

Appliance Age

Estimated repair cost (parts, or parts + labor) Most DIY parts are $50–$250. If you have a quote, use the total.

Is it under warranty?

More options (for a better recommendation)

Brand

Your DIY Skill Level

EPA Section 608 Certified Technician with 18+ years experience.