SoftPro
SoftPro 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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E01
Control panel displays E01 and the softener will not start a regeneration cycle.
Inlet Water Supply Fault
E02
Display shows E02 and the unit aborts regeneration shortly after starting.
Drain Line Flow Fault
E03
SoftPro water softener shows E03 and will not advance through regeneration steps.
Motor or Drive Fault
E04
Display shows E04 and time-of-day or regeneration settings will not hold.
Control Board / Memory Fault
E05
SoftPro water softener displays E05 and shows incorrect flow or usage readings.
Flow Meter / Turbine Sensor Fault
E06
Display shows E06 and the unit regenerates at incorrect times or not at all.
Programming / Clock Fault
E07
SoftPro softener shows E07 and will not draw brine during regeneration.
Brine Draw / Injector Fault
E08
Display shows E08 and the brine tank overfills with water after regeneration.
Brine Refill / Float Fault
E09
SoftPro display shows E09 and the unit remains in regeneration or backwash indefinitely.
Position Switch / Encoder Fault
E10
Display shows E10 and the unit reports abnormal temperature or shuts down during regeneration.
Temperature Sensor / Overheat Fault
E11
SoftPro softener shows E11 and salt usage is not being tracked correctly.
Salt Level / Brine Sensor Fault
E12
Display shows E12 and the unit indicates an internal leak or continuous flow when no water is being used.
Continuous Flow / Leak Detection Fault
E13
SoftPro controller shows E13 and regeneration is locked out due to low inlet pressure.
Low Inlet Pressure Fault
E14
Display shows E14 and the unit reports a resin tank communication or sensor error (on twin/advanced models).
Resin Tank Sensor / Communication Fault
E15
SoftPro softener shows E15 and will not accept new programming or button presses.
Keypad / User Interface Fault
E16
Display shows E16 and the unit indicates an internal valve configuration error.
Valve Configuration / Parameter Fault
E17
SoftPro softener shows E17 and regeneration is skipped due to excessive water usage or capacity error.
Capacity / Overuse Fault
E18
Display shows E18 and the unit reports a brine tank high-level alarm (if equipped with sensor).
Brine Tank High Level Fault
E19
SoftPro controller shows E19 and indicates a power supply or low-voltage error.
Low Voltage / Power Supply Fault
E20
Display shows E20 and the unit indicates a regeneration timeout or incomplete cycle.
Regeneration Timeout Fault
Symptom
SoftPro softener brine tank is full of water and not draining down between regenerations.
Brine Tank Not Draining
Symptom
SoftPro softener causes low water pressure or reduced flow in the home.
Flow Restriction Through Softener
Symptom
SoftPro softener display is blank or intermittently turns off, but the outlet has power.
No Display / Intermittent Power
Symptom
SoftPro softener display shows incorrect time or resets after power outages.
Clock / Backup Power Loss
Symptom
SoftPro softener does not regenerate often enough, leading to periodic hard water.
Insufficient Regeneration Frequency
Symptom
SoftPro softener emits a constant humming or buzzing noise from the control head.
Electrical / Motor Noise
Symptom
SoftPro softener is installed but water bypasses the unit and remains hard at all times.
Plumbing Misconfiguration / Cross-Connection
Symptom
SoftPro softener is stuck in regeneration and continuously runs water to the drain.
Valve Stuck in Regeneration
Symptom
SoftPro softener regenerates too frequently, wasting salt and water.
Excessive Regeneration Frequency
Symptom
SoftPro water softener appears to run normally but there is visible resin (small beads) in household faucets or aerators.
Resin Loss into Plumbing
Symptom
SoftPro water softener brine tank has very little or no water in it at any time.
Insufficient Brine Refill
Symptom
SoftPro water softener causes a sulfur or rotten egg smell in the water after installation.
Odor Associated with Softener
Symptom
SoftPro water softener is leaking water from around the control valve head.
Control Valve External Leak
Symptom
SoftPro water softener is not softening water (hard water at faucets) even though it appears to regenerate normally.
Resin Bed Exhaustion or Bypass
Symptom
SoftPro water softener is not using salt and water remains hard, but no error code is displayed.
No Brine Draw / No Salt Usage
Symptom
SoftPro water softener makes loud banging or water hammer noises during regeneration.
Water Hammer / Hydraulic Shock
Symptom
SoftPro water softener produces salty-tasting water after regeneration.
Excessive Brine Carryover
Symptom
SoftPro water softener will not start a manual regeneration when the button is pressed.
Manual Regeneration Initiation Failure
Symptom
Water is leaking from the SoftPro brine tank or around its base.
Brine Tank Leak
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Control panel displays E01 and the softener will not start a regeneration cycle.
|
Inlet Water Supply Fault | View Details |
| E02 |
Display shows E02 and the unit aborts regeneration shortly after starting.
|
Drain Line Flow Fault | View Details |
| E03 |
SoftPro water softener shows E03 and will not advance through regeneration steps.
|
Motor or Drive Fault | View Details |
| E04 |
Display shows E04 and time-of-day or regeneration settings will not hold.
|
Control Board / Memory Fault | View Details |
| E05 |
SoftPro water softener displays E05 and shows incorrect flow or usage readings.
|
Flow Meter / Turbine Sensor Fault | View Details |
| E06 |
Display shows E06 and the unit regenerates at incorrect times or not at all.
|
Programming / Clock Fault | View Details |
| E07 |
SoftPro softener shows E07 and will not draw brine during regeneration.
|
Brine Draw / Injector Fault | View Details |
| E08 |
Display shows E08 and the brine tank overfills with water after regeneration.
|
Brine Refill / Float Fault | View Details |
| E09 |
SoftPro display shows E09 and the unit remains in regeneration or backwash indefinitely.
|
Position Switch / Encoder Fault | View Details |
| E10 |
Display shows E10 and the unit reports abnormal temperature or shuts down during regeneration.
|
Temperature Sensor / Overheat Fault | View Details |
| E11 |
SoftPro softener shows E11 and salt usage is not being tracked correctly.
|
Salt Level / Brine Sensor Fault | View Details |
| E12 |
Display shows E12 and the unit indicates an internal leak or continuous flow when no water is being used.
|
Continuous Flow / Leak Detection Fault | View Details |
| E13 |
SoftPro controller shows E13 and regeneration is locked out due to low inlet pressure.
|
Low Inlet Pressure Fault | View Details |
| E14 |
Display shows E14 and the unit reports a resin tank communication or sensor error (on twin/advanced models).
|
Resin Tank Sensor / Communication Fault | View Details |
| E15 |
SoftPro softener shows E15 and will not accept new programming or button presses.
|
Keypad / User Interface Fault | View Details |
| E16 |
Display shows E16 and the unit indicates an internal valve configuration error.
|
Valve Configuration / Parameter Fault | View Details |
| E17 |
SoftPro softener shows E17 and regeneration is skipped due to excessive water usage or capacity error.
|
Capacity / Overuse Fault | View Details |
| E18 |
Display shows E18 and the unit reports a brine tank high-level alarm (if equipped with sensor).
|
Brine Tank High Level Fault | View Details |
| E19 |
SoftPro controller shows E19 and indicates a power supply or low-voltage error.
|
Low Voltage / Power Supply Fault | View Details |
| E20 |
Display shows E20 and the unit indicates a regeneration timeout or incomplete cycle.
|
Regeneration Timeout Fault | View Details |
| – |
SoftPro softener brine tank is full of water and not draining down between regenerations.
|
Brine Tank Not Draining | View Details |
| – |
SoftPro softener causes low water pressure or reduced flow in the home.
|
Flow Restriction Through Softener | View Details |
| – |
SoftPro softener display is blank or intermittently turns off, but the outlet has power.
|
No Display / Intermittent Power | View Details |
| – |
SoftPro softener display shows incorrect time or resets after power outages.
|
Clock / Backup Power Loss | View Details |
| – |
SoftPro softener does not regenerate often enough, leading to periodic hard water.
|
Insufficient Regeneration Frequency | View Details |
| – |
SoftPro softener emits a constant humming or buzzing noise from the control head.
|
Electrical / Motor Noise | View Details |
| – |
SoftPro softener is installed but water bypasses the unit and remains hard at all times.
|
Plumbing Misconfiguration / Cross-Connection | View Details |
| – |
SoftPro softener is stuck in regeneration and continuously runs water to the drain.
|
Valve Stuck in Regeneration | View Details |
| – |
SoftPro softener regenerates too frequently, wasting salt and water.
|
Excessive Regeneration Frequency | View Details |
| – |
SoftPro water softener appears to run normally but there is visible resin (small beads) in household faucets or aerators.
|
Resin Loss into Plumbing | View Details |
| – |
SoftPro water softener brine tank has very little or no water in it at any time.
|
Insufficient Brine Refill | View Details |
| – |
SoftPro water softener causes a sulfur or rotten egg smell in the water after installation.
|
Odor Associated with Softener | View Details |
| – |
SoftPro water softener is leaking water from around the control valve head.
|
Control Valve External Leak | View Details |
| – |
SoftPro water softener is not softening water (hard water at faucets) even though it appears to regenerate normally.
|
Resin Bed Exhaustion or Bypass | View Details |
| – |
SoftPro water softener is not using salt and water remains hard, but no error code is displayed.
|
No Brine Draw / No Salt Usage | View Details |
| – |
SoftPro water softener makes loud banging or water hammer noises during regeneration.
|
Water Hammer / Hydraulic Shock | View Details |
| – |
SoftPro water softener produces salty-tasting water after regeneration.
|
Excessive Brine Carryover | View Details |
| – |
SoftPro water softener will not start a manual regeneration when the button is pressed.
|
Manual Regeneration Initiation Failure | View Details |
| – |
Water is leaking from the SoftPro brine tank or around its base.
|
Brine Tank Leak | View Details |
No matching codes found
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