Hoover dishwashers, in particular, may display fault codes when something goes wrong. These codes can be helpful in diagnosing and fixing the problem, but it’s important to know how to interpret them.
In this blog post, we will discuss the various Hoover dishwasher error codes that may be displayed, as well as solutions for these issues.
Hoover Dishwasher Error Codes
Remember to always unplug the dishwasher and exercise caution when attempting any repairs.
E:02 or E2: Water solenoid valve error
This E2 error indicates that the process of filling the water was not finished.
Solutions:
- Ensure that the water pressure is sufficient.
- Check that the water pressure is adequate.
- Clean the inlet hose and filter.
- Check the inlet valve resistance with a multimeter.
| Electric part name | Ohmic value |
|---|---|
| Inlet valve | ~ 3.90 KΩ |
- Check and replace, if necessary, the main board.
E:03 or E3: Drain pump error
This E3 error means that the process of emptying the water was not completed within the expected time frame.
Solutions:
- Verify that the drain pump hose and filter are clean and functioning properly.
- Make sure the drain pump hose and filter are in good condition.
- Check the wall drain.
- Check drain pump resistance with a multimeter.
| Electric part name | Ohmic value |
|---|---|
| Drain pump | ~ 190 Ω |
- Check the pressure switch.
- Replace the main PCB if necessary.
E:04 or E4: Water leakage error
This E4 error occurs when the anti-flood switch detects an excess of water present for a period of 4 seconds.
Solutions:
- Inspect the wire harness connector for any loose or damaged components.
- Test the drain pump to see if it is functioning properly or if it needs to be replaced.
- If there is water leakage, locate and replace the faulty components and hoses.
- If the device is giving an alarm but there is no water leakage, it could be due to a failure in the overflow switch or the main board.
E:05 or E5: NTC sensor error
This refers to a problem with a thermistor, which is a type of temperature sensor.
Solutions:
- Inspect the wire harness connector for any loose or damaged components.
- Check the thermistor’s resistance according to the sensor temperature chart. If the resistance is not within the specified range, replace the sensor.
| Temperature | Ohmic value |
|---|---|
| 20°C | ~ 12580 Ω |
| 60°C | ~ 2390 Ω |
- Check the main board and, if required, replace it with a new one.
E:07 or E7: Washing Motor Pump error
This refers to a problem with the asynchronous motor pump, which is used to circulate water during the washing and rinsing cycles.
Solutions:
- Check the wiring between the motor and the board.
- Check the capacitor with a multimeter; if the capacitance is not within the specified range, replace the capacitor.
| Electric part name | capacitance value |
|---|---|
| Capacitor | ~ 5 µF |
- Check the tachometer with a multimeter; if the resistance is not within the specified range, replace the TM.
| Electric part name | Ohmic value |
| Tachometer | ~ 153 Ω |
- Check the motor pump using your multimeter; if the resistance is not within the specified range, replace the wash pump.
| Electric part name | Ohmic value |
|---|---|
| asynchronous washing motor | ~ 118 Ω |
- If the main board is faulty, replace it.
E:08 or E8: Abnormal heating temperature error
This E8 error means that the temperature during the heating process is not within the expected or normal range.
Solutions:
- Check the wiring between the heater and the board.
- Check the heating element resistance with a multimeter; if the resistance is not within the specified range, replace the heater assembly.
| Electric part name | Ohmic value |
|---|---|
| Heater: 1850 watt @ 220 Vac | ~ 26 Ω |
- Check the pressure switch contact resistance with multimeter; if the resistance is not within the specified range, replace the P.S.
| Electric part name | Ohmic value |
|---|---|
| pressure switch with water | ~ 0.1 – 1.0 Ω |
| pressure switch with no water | OL |
- Check the main PCB and replace it if necessary.
E:09 or E9: Turbidity sensor error
This refers to a problem with a sensor that measures the turbidity of water.
Solutions:
- Check the wiring between the turbidity sensor and the board.
- If there is a large amount of foam in the tank, perform several rinses using the Cold Pre-wash function.
- Clean the turbidity sensor.
- If the main board is not functioning properly, replace it.
E:10 or E10: Communication failure between the main PCB and the user control
This means that there is a problem with communication between the main board and the user control panel or interface.
Solutions:
- Check the wiring between the main board and user interface.
- Check the user interface and replace it if necessary.
- Check the main board and replace it if necessary.
E:12 or E12: BLDC washing motor error
This E12 error refers to a problem with a brushless DC (BLDC) circulation pump.
Solutions:
- Check the wiring between the main PCB and the BLDC motor.
- The resistance measurement between the windings should be the same; if the resistance is not within the specified range, replace the motor.:
| Electric part name | Ohmic value |
|---|---|
| BLDC motor | U and V = V and W = W and U = ~ 62 Ω |
- Check the main PCB. Replace it if necessary.
E:14 or E14: Heating chain error
This E14 error refers to a problem with the component in the appliance that generates heat, such as a heating element or a heating coil.
Solutions:
- Check the wiring harness connector.
- Check the pressure-safety microswitch.
- Check the NTC probe resistance with a multimeter.
| Temperature | Ohmic value |
|---|---|
| 20°C | ~ 12580 Ω |
- Check the heater assembly.
| Electric part name | Ohmic value |
|---|---|
| Heater: 1850 watt @ 220 Vac | ~ 26 Ω |
- Check the heater relay. Replace it if necessary.
E:15 or E15: EEPROM error
Main board EEPROM corrupted
Solutions:
- Replace the main PCB.
E:16 or E16: Pressure switch shorted error
This means that the pressure safety microswitch is not functioning properly and is always in the “closed” position.
Solutions:
- Check the wiring harness.
- Replace the microswitch.
- Check the heater relay. Replace it if necessary.
E:17 or E17: Heater relay error
This refers to a problem with the relay that controls the heater operation.
Solutions:
- Wait for at least 20 minutes.
- If the defect persists or recurs, replace the main PCB.
E:18 or E18: Water Level error
This E18 error means that the dishwasher detected an incorrect water level while it was filling with water.
Solutions:
- Check the solenoid valve.
- Clean the air trap chamber.
- Find the air leakage in the pressure switch hose.
- Replace the pressure level switch.
E:21 or E21: Flowmeter error
This E21 refers to a problem with a solenoid valve. If the valve is stuck open, it may not be able to regulate the flow of water properly.
Solutions:
- Check the reed switch.
- To check the reed switch, you can follow these steps:
- First, make sure that the power to the device is turned off.
- Locate the reed switch and identify its two pins.
- Obtain a magnet.
- Use a multimeter set to the continuity setting to test the switch.
- Touch one probe of the multimeter to each of the pins.
- Bring the magnet close to the reed switch. The multimeter should beep or indicate that the circuit is complete if the switch is functioning properly.
- If the multimeter does not beep or indicate a complete circuit when the magnet is brought near the switch, the switch may be faulty and may need to be replaced.
- Replace the water inlet valve.
Conclusion:
Overall, Hoover dishwasher error codes can be frustrating, but with a little knowledge and some troubleshooting, they can often be easily fixed.
Find out more about Hoover product error codes. Learn more today.
