The E07 error on your Bosch Dishwasher means the appliance has detected a problem with its heating circuit or water heating element. This usually stops the wash cycle partway through until the fault is cleared. Most cases are fixable at home with a few checks before you need to call an engineer.
| Error code | E07 |
|---|---|
| Meaning | Heating element or heating circuit fault detected during a wash cycle |
| Severity | Medium — the dishwasher will usually pause or stop the cycle but is not unsafe to leave unattended briefly |
| Time to fix | 15–45 minutes |
| Tools needed | Multimeter, screwdriver, torch |
What the E07 error means
E07 is triggered when the dishwasher's control board doesn't get the expected signal from the heating element or its sensor during the wash cycle. This can be caused by a genuine heater fault, a wiring issue, or a temporary glitch in the electronics. The dishwasher stops heating water to protect itself and flags the code so you know something needs attention.
Bosch appliances share a lot of common ground with their power tools when it comes to electrical faults — the same principles that apply to diagnosing something like a Bosch Drill Won'T Start issue (checking connections, power supply, and components) apply here too.
Common causes
- Faulty or burnt-out heating element
- Loose or corroded wiring connections to the heater
- Failed thermostat or temperature sensor (NTC)
- Limescale build-up insulating the heating element
- Faulty control board not reading the heater signal correctly
- Power supply fluctuation during the cycle
How to fix the E07 error
- Power cycle the dishwasher: Turn it off at the wall, wait two minutes, then switch back on and restart a cycle to clear a temporary fault.
- Check for limescale build-up: Run a descaling cycle with a dishwasher cleaner, especially if you're in a hard water area, since scale on the element is a common trigger.
- Inspect wiring connections: With the power disconnected, open the base panel and check the heater wiring for looseness or corrosion, similar to how you'd check Bosch Drill Battery Not Connecting issues where a poor connection stops power flow.
- Test the heating element with a multimeter: Disconnect power and test for continuity across the element. A reading of zero or infinite resistance means it needs replacing.
- Check the NTC temperature sensor: Test its resistance against the manufacturer's spec sheet; replace if it's out of range.
- Call a qualified engineer: If the element and sensor test fine, the control board itself may be faulty and should be replaced by a professional.
FAQ
Can I keep using my dishwasher with an E07 error?
It's best not to. The machine likely won't heat water properly, so dishes may not be cleaned or sanitised properly until the fault is fixed.
Is E07 dangerous?
Not typically, but a failing heating element can occasionally cause tripped circuits, so it's worth addressing promptly rather than ignoring it.
Will resetting the dishwasher fix E07 permanently?
Sometimes, if the cause was a one-off electrical glitch. If the code returns after a reset, there's likely a hardware fault that needs inspection.
