The E16 error on your Hoover Dishwasher means there is a problem with the water heating system. This error indicates the appliance has detected that water is not heating properly or the heating element circuit has failed.
| Error code | E16 |
|---|---|
| Meaning | Water heating fault or heating element failure |
| Severity | Medium — Dishwasher may still run cold cycles but cleaning performance will be severely reduced |
| Time to fix | 15–45 minutes |
| Tools needed | Multimeter, screwdriver set, towels |
What the E16 error means
The E16 error code appears when your Hoover dishwasher detects a fault in the heating circuit. This typically means the heating element is not working correctly, the thermistor temperature sensor has failed, or there is a wiring issue preventing proper heating. The dishwasher's control board monitors the water temperature during cycles and triggers this error when it cannot reach the required temperature within the expected timeframe.
Common causes
- Faulty or burned-out heating element that can no longer heat water effectively
- Defective thermistor or temperature sensor providing incorrect readings to the control board
- Damaged or loose wiring connections between the heating element and control board
- Tripped thermal cut-out switch that has shut down the heating element for safety
- Failed control board unable to properly regulate the heating circuit
- Limescale buildup on the heating element reducing its efficiency in hard water areas
How to fix the E16 error
- Reset the dishwasher first Switch off the dishwasher at the mains power supply and leave it unplugged for 10 minutes. This can clear temporary electronic glitches. Plug it back in and run a test cycle to see if the error returns.
- Check the heating element for continuity Turn off power and water supply. Access the heating element at the base of the tub by removing the bottom panel. Use a multimeter to test for continuity across the element terminals. A working element should read between 15-30 ohms. If there is no continuity or infinite resistance, the element has failed and needs replacement.
- Inspect the thermistor sensor Locate the thermistor attached near the heating element. Disconnect it and test with a multimeter at room temperature. It should read approximately 50,000 ohms at 25°C. If the reading is significantly different or shows no continuity, replace the thermistor.
- Examine all wiring connections Inspect the wires connecting the heating element and thermistor to the control board. Look for burn marks, corrosion, loose connections, or damaged insulation. Reconnect any loose wires and replace any damaged wiring harnesses.
- Check the thermal cut-out switch Some Hoover models have a thermal safety switch on the heating element. If this has tripped due to overheating, it may need to be manually reset or replaced if faulty.
- Test the control board If all other components test correctly, the control board may be faulty. This is less common but can prevent the heating circuit from operating. Professional diagnosis may be needed, and board replacement is typically the only solution.
FAQ
Can I still use my Hoover dishwasher with the E16 error?
You may be able to run cold wash cycles, but cleaning performance will be very poor as modern detergent tablets require hot water to dissolve and activate properly. It is not recommended for regular use and the underlying fault should be repaired.
How much does it cost to replace a Hoover dishwasher heating element?
A replacement heating element typically costs between £20 and £50 for the part alone. If you hire a professional appliance repair technician, expect to pay £80 to £150 including labour. DIY replacement can save significant costs if you are confident with basic appliance repairs.
Why does the E16 error appear only on some wash cycles?
The error may only trigger on cycles that require higher water temperatures such as intensive or sanitize modes. If the heating element is partially failed or there is intermittent wiring contact, it may work on shorter or cooler cycles but fail when sustained heating is required.
