hE Error Code
📋 What Does hE Mean?
Heater Error — the heating element is not warming water to the target temperature.
🔍 Common Causes
- 1Heating element burned out
- 2Heater relay on control board faulty
- 3Thermistor giving false readings
- 4Limescale buildup on heating element
📞 When to Call a Pro
Heating element or control board relay replacement.
🔧 DIY Fix Steps
- 1Run a hot cycle with a dishwasher descaler to remove limescale
- 2Unplug and restart to rule out a transient fault
- 3Check incoming water is at least 120°F (49°C)
Frequently Asked Questions
What does hE mean on a Lg dishwasher?
Heater Error — the heating element is not warming water to the target temperature.
Can I fix hE myself?
Yes, in many cases. Start with: run a hot cycle with a dishwasher descaler to remove limescale If that does not resolve it, heating element or control board relay replacement.
How much does it cost to repair error hE?
Estimated repair cost: $120–$350. This varies by region and technician.
Tools That Help With This Diagnosis
Basic troubleshooting tools grouped separately from the actual error-code explanation.
Multimeters
Useful for basic electrical checks when the repair path calls for it and the unit is safely isolated.
Driver sets
Useful when the first obstacle is simply reaching the part or hose involved.
Cleanup tools
Useful for drain and leak faults where standing water hides the problem.
Related Pages
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Troubleshooting guide hub
Open broader diagnosis, symptom, and first-step guides.
Diagnostic tools
See basic tools that help without mixing them into the code explanation itself.
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