E3 Error Code
📋 What Does E3 Mean?
Heating Fault — water is not reaching target temperature during wash.
🔍 Common Causes
- 1Heating element failed
- 2Thermostat fault
- 3Control board relay for heater faulty
- 4Limescale buildup on element
📞 When to Call a Pro
Heating element or control board replacement.
🔧 DIY Fix Steps
- 1Run a machine-cleaning cycle with dishwasher descaler/cleaner
- 2Cancel and restart cycle
- 3Ensure incoming water is at least 120°F at the tap (connect a hot water faucet nearby first)
- 4Unplug 5 minutes to reset
Frequently Asked Questions
What does E3 mean on a Bosch dishwasher?
Heating Fault — water is not reaching target temperature during wash.
Can I fix E3 myself?
Yes, in many cases. Start with: run a machine-cleaning cycle with dishwasher descaler/cleaner If that does not resolve it, heating element or control board replacement.
How much does it cost to repair error E3?
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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