Electrolux Water Heaters Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E1
Water heater does not heat; display shows E1 shortly after a heating request
Inlet Thermistor / Temperature Sensor Failure
E10
Display shows E10; unit does not start heating when hot water is demanded
Insufficient Water Pressure / Flow Start Error
E11
Display shows E11; unit may heat briefly then shut off
Outlet Temperature Over-Limit / Anti-Scald Protection
E12
Display shows E12; unit fails to start or shuts down unexpectedly
Internal Communication Error (PCB-to-Module)
E13
Display shows E13; unit may not respond to temperature adjustments
Temperature Setting Potentiometer / Sensor Error
E14
Display shows E14; unit may not power on or may shut off randomly
Low Voltage / Power Supply Error
E15
Display shows E15; unit may lock out and not restart until power is cycled
Earth Leakage / Ground Fault Detection
E16
Display shows E16; unit may overheat or shut down unexpectedly
Tank Thermostat / Sensor Failure (Storage-Type Models)
E17
Display shows E17; unit may not fill or may show abnormal tank level (for models with level sensor)
Tank Level Sensor / Probe Error
E18
Display shows E18; unit may not ignite or heat (for gas-assisted hybrid Electrolux water heaters)
Ignition Failure / Flame Detection Error
E19
Display shows E19; unit may overheat or not regulate temperature correctly
Mixing Valve / Outlet Temperature Control Error
E2
Water heater shuts down during operation and displays E2; water temperature fluctuates or is cold
Outlet Thermistor / Temperature Sensor Failure
E20
Display shows E20; unit may not respond to remote control or external thermostat
External Control / Communication Error
E3
Display shows E3 and unit stops heating; may occur shortly after startup
Overheat Protection / High Temperature Cut-out Trip
E4
Unit displays E4 and does not start heating when hot water is demanded
Flow Sensor / Flow Switch Failure
E5
Display shows E5; water temperature is unstable or unit shuts down intermittently
Temperature Sensor Mismatch / Delta-T Error
E6
Unit displays E6 and does not heat; may click but no sustained operation
Heating Element Circuit Failure
E7
Display shows E7; unit may not power up fully or may reset repeatedly
Main Control Board / EEPROM Error
E8
Unit displays E8 and shuts down; may occur during long draws of hot water
Dry-Fire / No Water in Heat Exchanger Protection
E9
Display shows E9; unit may not respond to buttons or may behave erratically
User Interface / Keypad Communication Error
Symptom
Control panel buttons do not respond or respond intermittently
Keypad / User Interface Failure
Symptom
Display is blank but unit heats water normally
Display Backlight / UI Power Issue
Symptom
Hot water pressure is low while cold water pressure is normal
Hot Water Flow Restriction
Symptom
Water from heater has a metallic or rusty color
Internal Corrosion / Anode Depletion
Symptom
Water from heater has a rotten egg or sulfur smell
Bacterial Contamination / Anode Reaction
Symptom
Water heater cycles on and off rapidly (short cycling)
Control / Sensor Hysteresis Problem
Symptom
Water heater does not turn on at all; no lights or display
No Power / Line Supply Failure
Symptom
Water heater emits a burning smell or shows signs of scorching near wiring
Overheated Electrical Connections
Symptom
Water heater leaks from bottom of unit
Tank or Heat Exchanger Leak
Symptom
Water heater leaks from top or side connections
Fitting / Connection Leak
Symptom
Water heater makes a high-pitched whistling or hissing noise when running
Flow Noise / Cavitation
Symptom
Water heater makes popping or rumbling noises during heating
Scale Buildup on Heating Surfaces
Symptom
Water heater powers on but does not heat water; water remains cold
No Heating / Element Not Energizing
Symptom
Water heater produces insufficient hot water; runs out quickly
Capacity / Recovery Deficiency
Symptom
Water heater trips the circuit breaker or RCD/GFCI when heating
Electrical Short or Ground Fault
Symptom
Water heater vibrates excessively or rattles when heating
Mechanical Vibration / Mounting Issue
Symptom
Water heater's safety relief valve drips or discharges water periodically
Excessive Pressure / Temperature Relief
Symptom
Water is too hot at taps; risk of scalding
Overheating / Thermostat Out of Calibration
Symptom
Water temperature fluctuates between hot and cold during a shower
Temperature Instability / Modulation Fault
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Water heater does not heat; display shows E1 shortly after a heating request
|
Inlet Thermistor / Temperature Sensor Failure | View Details |
| E10 |
Display shows E10; unit does not start heating when hot water is demanded
|
Insufficient Water Pressure / Flow Start Error | View Details |
| E11 |
Display shows E11; unit may heat briefly then shut off
|
Outlet Temperature Over-Limit / Anti-Scald Protection | View Details |
| E12 |
Display shows E12; unit fails to start or shuts down unexpectedly
|
Internal Communication Error (PCB-to-Module) | View Details |
| E13 |
Display shows E13; unit may not respond to temperature adjustments
|
Temperature Setting Potentiometer / Sensor Error | View Details |
| E14 |
Display shows E14; unit may not power on or may shut off randomly
|
Low Voltage / Power Supply Error | View Details |
| E15 |
Display shows E15; unit may lock out and not restart until power is cycled
|
Earth Leakage / Ground Fault Detection | View Details |
| E16 |
Display shows E16; unit may overheat or shut down unexpectedly
|
Tank Thermostat / Sensor Failure (Storage-Type Models) | View Details |
| E17 |
Display shows E17; unit may not fill or may show abnormal tank level (for models with level sensor)
|
Tank Level Sensor / Probe Error | View Details |
| E18 |
Display shows E18; unit may not ignite or heat (for gas-assisted hybrid Electrolux water heaters)
|
Ignition Failure / Flame Detection Error | View Details |
| E19 |
Display shows E19; unit may overheat or not regulate temperature correctly
|
Mixing Valve / Outlet Temperature Control Error | View Details |
| E2 |
Water heater shuts down during operation and displays E2; water temperature fluctuates or is cold
|
Outlet Thermistor / Temperature Sensor Failure | View Details |
| E20 |
Display shows E20; unit may not respond to remote control or external thermostat
|
External Control / Communication Error | View Details |
| E3 |
Display shows E3 and unit stops heating; may occur shortly after startup
|
Overheat Protection / High Temperature Cut-out Trip | View Details |
| E4 |
Unit displays E4 and does not start heating when hot water is demanded
|
Flow Sensor / Flow Switch Failure | View Details |
| E5 |
Display shows E5; water temperature is unstable or unit shuts down intermittently
|
Temperature Sensor Mismatch / Delta-T Error | View Details |
| E6 |
Unit displays E6 and does not heat; may click but no sustained operation
|
Heating Element Circuit Failure | View Details |
| E7 |
Display shows E7; unit may not power up fully or may reset repeatedly
|
Main Control Board / EEPROM Error | View Details |
| E8 |
Unit displays E8 and shuts down; may occur during long draws of hot water
|
Dry-Fire / No Water in Heat Exchanger Protection | View Details |
| E9 |
Display shows E9; unit may not respond to buttons or may behave erratically
|
User Interface / Keypad Communication Error | View Details |
| – |
Control panel buttons do not respond or respond intermittently
|
Keypad / User Interface Failure | View Details |
| – |
Display is blank but unit heats water normally
|
Display Backlight / UI Power Issue | View Details |
| – |
Hot water pressure is low while cold water pressure is normal
|
Hot Water Flow Restriction | View Details |
| – |
Water from heater has a metallic or rusty color
|
Internal Corrosion / Anode Depletion | View Details |
| – |
Water from heater has a rotten egg or sulfur smell
|
Bacterial Contamination / Anode Reaction | View Details |
| – |
Water heater cycles on and off rapidly (short cycling)
|
Control / Sensor Hysteresis Problem | View Details |
| – |
Water heater does not turn on at all; no lights or display
|
No Power / Line Supply Failure | View Details |
| – |
Water heater emits a burning smell or shows signs of scorching near wiring
|
Overheated Electrical Connections | View Details |
| – |
Water heater leaks from bottom of unit
|
Tank or Heat Exchanger Leak | View Details |
| – |
Water heater leaks from top or side connections
|
Fitting / Connection Leak | View Details |
| – |
Water heater makes a high-pitched whistling or hissing noise when running
|
Flow Noise / Cavitation | View Details |
| – |
Water heater makes popping or rumbling noises during heating
|
Scale Buildup on Heating Surfaces | View Details |
| – |
Water heater powers on but does not heat water; water remains cold
|
No Heating / Element Not Energizing | View Details |
| – |
Water heater produces insufficient hot water; runs out quickly
|
Capacity / Recovery Deficiency | View Details |
| – |
Water heater trips the circuit breaker or RCD/GFCI when heating
|
Electrical Short or Ground Fault | View Details |
| – |
Water heater vibrates excessively or rattles when heating
|
Mechanical Vibration / Mounting Issue | View Details |
| – |
Water heater's safety relief valve drips or discharges water periodically
|
Excessive Pressure / Temperature Relief | View Details |
| – |
Water is too hot at taps; risk of scalding
|
Overheating / Thermostat Out of Calibration | View Details |
| – |
Water temperature fluctuates between hot and cold during a shower
|
Temperature Instability / Modulation Fault | View Details |
No matching codes found
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