Ecowater Europe
Ecowater Europe Water Softeners Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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Err 01
Control display shows “Err 01” and softener does not start regeneration
Inlet Valve / Fill Fault
Err 02
Display shows “Err 02” and regeneration stops during brining or slow rinse
Brine Valve / Brine Draw Fault
Err 03
Display shows “Err 03” and unit will not advance through regeneration steps
Motor / Cam Position Fault
Err 04
Display shows “Err 04” and water flow is not being measured correctly (usage stays at 0 or jumps erratically)
Flow Meter / Turbine Sensor Fault
Err 05
Display shows “Err 05” and time-of-day or regeneration schedule cannot be set or is lost frequently
Real-Time Clock / Memory Fault
Err 06
Display shows “Err 06” and unit does not detect salt level correctly (salt alarm even when tank is full)
Salt Level Sensor Fault
Err 07
Display shows “Err 07” and unit will not start regeneration; keypad appears unresponsive or partially working
Keypad / User Interface Fault
Err 08
Display shows “Err 08” and unit reports abnormal water hardness or fails to reach programmed softness
Hardness Sensor / Conductivity Probe Fault (if equipped)
Err 09
Display shows “Err 09” and unit indicates abnormal temperature or shuts down during very hot or cold conditions
Temperature Sensor Fault
Err 10
Display shows “Err 10” and unit reports internal communication error between display and main board
Internal Communication Bus Fault
Err 11
Display shows “Err 11” and unit indicates excessive water usage or leak alarm even when no taps are open
Continuous Flow / Leak Detection Fault
Err 12
Display shows “Err 12” and unit reports low inlet pressure or fails to regenerate due to insufficient water
Low Inlet Pressure Detection
Err 13
Display shows “Err 13” and unit indicates high inlet pressure or shuts off to protect components
High Inlet Pressure Protection
Err 14
Display shows “Err 14” and unit reports resin capacity error or cannot calculate remaining capacity
Resin Capacity / Programming Fault
Err 15
Display shows “Err 15” and unit indicates brine tank overfill or high water level alarm
Brine Tank Overfill / Float Fault
Err 16
Display shows “Err 16” and unit indicates drain line flow error during backwash or fast rinse
Drain Line Flow Fault
Err 17
Display shows “Err 17” and unit indicates resin tank sensor or position error (on twin/duplex models)
Tank Position / Resin Tank Sensor Fault
Err 18
Display shows “Err 18” and unit indicates resin sensor or quality sensor error (advanced models)
Resin Bed Quality Sensor Fault
Err 19
Display shows “Err 19” and unit indicates power supply or low voltage error
Low Voltage / Power Supply Fault
Err 20
Display shows “Err 20” and unit indicates general system fault requiring service
General System Fault / Undefined Error
Symptom
Buttons on the control panel do not respond or respond intermittently
Keypad Contact Failure
Symptom
Display is blank; softener appears completely dead
No Power / Dead Control
Symptom
Display is on but very dim or unreadable
Display Backlight / LCD Degradation
Symptom
Softener causes noticeable drop in water pressure at taps during normal use
Flow Restriction Through Softener
Symptom
Softener causes noticeable vibration in nearby pipes and walls during backwash
Hydraulic Vibration During High Flow
Symptom
Softener continuously drains water to the waste line even when not regenerating
Valve Not Sealing / Continuous Drain
Symptom
Softener does not start at the programmed regeneration time
Regeneration Scheduling / Timer Fault
Symptom
Softener emits a constant humming or buzzing sound from the control head
Transformer / Motor Hum
Symptom
Softener installed but no improvement in limescale on fixtures
Bypass or Incorrect Plumbing
Symptom
Softener makes loud knocking or banging noises in pipes during regeneration
Water Hammer / Rapid Valve Operation Noise
Symptom
Softener occasionally allows hard water through before regeneration occurs
Hardness Bleed-Through Before Scheduled Regeneration
Symptom
Softener regenerates at unexpected times, such as during the day
Incorrect Regeneration Time / Immediate Regeneration Mode
Symptom
Softener stuck in regeneration and does not return to service mode
Regeneration Cycle Stalled
Symptom
Softener uses almost no salt; salt level remains unchanged for months but water is still soft
Under-Utilized Regeneration / Oversized System
Symptom
Softener uses salt very quickly; salt level drops much faster than expected
Excessive Salt Consumption
Symptom
Water has a metallic or rusty taste/colour even though softener is installed
Iron Breakthrough / Resin Fouling
Symptom
Water has a rotten egg (sulphur) smell despite softening
Hydrogen Sulphide / Bacterial Contamination
Symptom
Water has a salty taste at taps immediately after regeneration
Excessive Salt Carryover
Symptom
Water remains hard at taps even though the Ecowater softener appears to regenerate normally
Reduced Softening Capacity / Resin Exhaustion
Symptom
Water softener does not use salt; salt level never drops and water gradually becomes hard
No Brine Draw / Regeneration Not Occurring
Symptom
Water softener leaks from around the valve head or top of the resin tank
Valve Head / Tank O-Ring Leak
Symptom
Water softener leaks from the brine tank or around the brine well
Brine Tank / Brine Well Leak
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| Err 01 |
Control display shows “Err 01” and softener does not start regeneration
|
Inlet Valve / Fill Fault | View Details |
| Err 02 |
Display shows “Err 02” and regeneration stops during brining or slow rinse
|
Brine Valve / Brine Draw Fault | View Details |
| Err 03 |
Display shows “Err 03” and unit will not advance through regeneration steps
|
Motor / Cam Position Fault | View Details |
| Err 04 |
Display shows “Err 04” and water flow is not being measured correctly (usage stays at 0 or jumps erratically)
|
Flow Meter / Turbine Sensor Fault | View Details |
| Err 05 |
Display shows “Err 05” and time-of-day or regeneration schedule cannot be set or is lost frequently
|
Real-Time Clock / Memory Fault | View Details |
| Err 06 |
Display shows “Err 06” and unit does not detect salt level correctly (salt alarm even when tank is full)
|
Salt Level Sensor Fault | View Details |
| Err 07 |
Display shows “Err 07” and unit will not start regeneration; keypad appears unresponsive or partially working
|
Keypad / User Interface Fault | View Details |
| Err 08 |
Display shows “Err 08” and unit reports abnormal water hardness or fails to reach programmed softness
|
Hardness Sensor / Conductivity Probe Fault (if equipped) | View Details |
| Err 09 |
Display shows “Err 09” and unit indicates abnormal temperature or shuts down during very hot or cold conditions
|
Temperature Sensor Fault | View Details |
| Err 10 |
Display shows “Err 10” and unit reports internal communication error between display and main board
|
Internal Communication Bus Fault | View Details |
| Err 11 |
Display shows “Err 11” and unit indicates excessive water usage or leak alarm even when no taps are open
|
Continuous Flow / Leak Detection Fault | View Details |
| Err 12 |
Display shows “Err 12” and unit reports low inlet pressure or fails to regenerate due to insufficient water
|
Low Inlet Pressure Detection | View Details |
| Err 13 |
Display shows “Err 13” and unit indicates high inlet pressure or shuts off to protect components
|
High Inlet Pressure Protection | View Details |
| Err 14 |
Display shows “Err 14” and unit reports resin capacity error or cannot calculate remaining capacity
|
Resin Capacity / Programming Fault | View Details |
| Err 15 |
Display shows “Err 15” and unit indicates brine tank overfill or high water level alarm
|
Brine Tank Overfill / Float Fault | View Details |
| Err 16 |
Display shows “Err 16” and unit indicates drain line flow error during backwash or fast rinse
|
Drain Line Flow Fault | View Details |
| Err 17 |
Display shows “Err 17” and unit indicates resin tank sensor or position error (on twin/duplex models)
|
Tank Position / Resin Tank Sensor Fault | View Details |
| Err 18 |
Display shows “Err 18” and unit indicates resin sensor or quality sensor error (advanced models)
|
Resin Bed Quality Sensor Fault | View Details |
| Err 19 |
Display shows “Err 19” and unit indicates power supply or low voltage error
|
Low Voltage / Power Supply Fault | View Details |
| Err 20 |
Display shows “Err 20” and unit indicates general system fault requiring service
|
General System Fault / Undefined Error | View Details |
| – |
Buttons on the control panel do not respond or respond intermittently
|
Keypad Contact Failure | View Details |
| – |
Display is blank; softener appears completely dead
|
No Power / Dead Control | View Details |
| – |
Display is on but very dim or unreadable
|
Display Backlight / LCD Degradation | View Details |
| – |
Softener causes noticeable drop in water pressure at taps during normal use
|
Flow Restriction Through Softener | View Details |
| – |
Softener causes noticeable vibration in nearby pipes and walls during backwash
|
Hydraulic Vibration During High Flow | View Details |
| – |
Softener continuously drains water to the waste line even when not regenerating
|
Valve Not Sealing / Continuous Drain | View Details |
| – |
Softener does not start at the programmed regeneration time
|
Regeneration Scheduling / Timer Fault | View Details |
| – |
Softener emits a constant humming or buzzing sound from the control head
|
Transformer / Motor Hum | View Details |
| – |
Softener installed but no improvement in limescale on fixtures
|
Bypass or Incorrect Plumbing | View Details |
| – |
Softener makes loud knocking or banging noises in pipes during regeneration
|
Water Hammer / Rapid Valve Operation Noise | View Details |
| – |
Softener occasionally allows hard water through before regeneration occurs
|
Hardness Bleed-Through Before Scheduled Regeneration | View Details |
| – |
Softener regenerates at unexpected times, such as during the day
|
Incorrect Regeneration Time / Immediate Regeneration Mode | View Details |
| – |
Softener stuck in regeneration and does not return to service mode
|
Regeneration Cycle Stalled | View Details |
| – |
Softener uses almost no salt; salt level remains unchanged for months but water is still soft
|
Under-Utilized Regeneration / Oversized System | View Details |
| – |
Softener uses salt very quickly; salt level drops much faster than expected
|
Excessive Salt Consumption | View Details |
| – |
Water has a metallic or rusty taste/colour even though softener is installed
|
Iron Breakthrough / Resin Fouling | View Details |
| – |
Water has a rotten egg (sulphur) smell despite softening
|
Hydrogen Sulphide / Bacterial Contamination | View Details |
| – |
Water has a salty taste at taps immediately after regeneration
|
Excessive Salt Carryover | View Details |
| – |
Water remains hard at taps even though the Ecowater softener appears to regenerate normally
|
Reduced Softening Capacity / Resin Exhaustion | View Details |
| – |
Water softener does not use salt; salt level never drops and water gradually becomes hard
|
No Brine Draw / Regeneration Not Occurring | View Details |
| – |
Water softener leaks from around the valve head or top of the resin tank
|
Valve Head / Tank O-Ring Leak | View Details |
| – |
Water softener leaks from the brine tank or around the brine well
|
Brine Tank / Brine Well Leak | View Details |
No matching codes found
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