Bosch Dishwasher Error Code E03: Meaning and Fix
Reading the dishwasher display
A dishwasher reports its fault in the display window, or by blinking a cycle light a set number of times with a pause between groups. Count the blinks and pauses before opening the door. Bosch shows the code with a leading E and a number on both dishwashers and washers.
Bosch (part of BSH Home Appliances) uses E-numbered codes on dishwashers and washers. Its dishwashers share control platforms with Thermador and Gaggenau, so the same fault can appear on those brands. The codes apply to model numbers such as SHPM65Z55N, SHE53T55UC and WAT28400UC; check the label on your unit to confirm yours.
What causes E03
- A burned-out heating element or open thermal fuse
- Low water level so the element protection trips
- A damaged wire, connector or relay on the control board feeding the heater
- A faulty temperature sensor (NTC) reporting the wrong reading to the control
How to fix it
- Switch the appliance off at the breaker and let it cool completely before working on it.
- Inspect the heater wiring and connectors for scorching, looseness or corrosion and reseat them.
- Make sure the machine actually fills to the correct level before heating starts.
- Test the heating element and the temperature sensor for continuity/resistance with a multimeter against the values in your service sheet.
- Replace whichever component fails the test; never bypass a thermal fuse.
- Reassemble, restore power and run a hot cycle, checking that the water or air reaches temperature in a normal time.
Parts you may need
| Part | Part no. | Buy |
|---|---|---|
| Dishwasher Heating Element | 00219639 | Find part |
Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.
Questions
What does error E03 mean on a Bosch dishwasher?
The dishwasher filled but could not bring the water up to the programmed temperature within the allowed time. Exact behavior can vary by model and software version; confirm against your own manual.
Can I keep using my dishwasher while E03 is showing?
You can run cold or short cycles in a pinch, but results will be poor, and a heater that stays on is a safety concern, so repair it soon.
How do I clear E03, and can I fix it myself?
Cancel the program, switch the appliance off and leave it unplugged (or the breaker off) for about five minutes, then restart. The code only stays cleared if the underlying problem is fixed, so work through the steps above. Parts here involve electronics, heating or sealed components, so consider a qualified technician if the basic checks do not clear it.
Other Bosch dishwasher codes
Sources
Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.
Applies to models including SHPM65Z55N, SHE53T55UC, SHX53TL5UC, SHEM63W55N.