Hellenbrand
Hellenbrand 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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Batt
Display shows “Batt” or clock resets after power outages.
Backup Battery / Capacitor Low
Err1
Control display shows “Err1” and softener will not start a regeneration cycle automatically.
Turbine / Flow Meter Signal Fault
Err2
Display shows “Err2” and the softener stops mid-regeneration or will not start a cycle.
Motor / Drive Fault (No Position Feedback)
Err3
Display shows “Err3” and regeneration stops at a specific step (e.g., brine draw or backwash).
Valve Positioning / Cam Alignment Error
Err4
Display shows “Err4” and the softener does not respond to button presses or time-of-day is lost frequently.
Control Board Memory / Clock Error
Err5
Display shows “Err5” and the unit will not initiate or complete a regeneration cycle.
Program Configuration / Parameter Error
Err6
Display shows “Err6” and the softener appears to be in regeneration continuously or never regenerates.
Reed Switch / Position Sensor Fault
Err7
Display shows “Err7” and the unit does not meter water usage correctly (regenerates too often or not at all).
Meter Calibration / Flow Count Error
Err8
Display shows “Err8” and the brine tank does not refill properly after regeneration.
Brine Refill / Refill Valve Fault
Err9
Display shows “Err9” and the unit reports low salt or brine system fault even when salt is present.
Brine Level / Salt Sensor Fault
H0
Display shows “H0” or similar hardness error and regeneration frequency seems incorrect.
Hardness Setting / Sensor Error
Lo Salt
Display shows “Lo Salt” or “Add Salt” even though the brine tank appears to have salt.
Low Salt Detection / Brine Concentration Fault
No AC
Display is blank or shows “No AC” and the softener does not regenerate.
Power Supply / Transformer Fault
Service
Display alternates between normal screen and “Service” or “Call for Service” message.
General Service Alarm / Preventive Maintenance Indicator
Symptom
Bottom of brine tank full of thick, slushy salt mush and debris; softener performance is poor.
Salt Mushing / Brine Contamination
Symptom
Brine tank fills with too much water (high water level) after regeneration.
Brine Overfill / Refill Control Failure
Symptom
Brine tank has very little or no water before regeneration, and salt does not seem to dissolve.
Insufficient Brine Refill
Symptom
No water at faucets when softener is in service position, but water returns when bypassed.
Blocked Control Valve / Inlet Obstruction
Symptom
Salt level in brine tank does not go down over time; salt appears to form a hard crust.
Salt Bridging
Symptom
Softener appears to regenerate at random times, not at the programmed regeneration time.
Unexpected / Unsynchronized Regeneration
Symptom
Softener causes noticeable drop in water pressure throughout the house.
Flow Restriction Through Softener
Symptom
Softener control head feels warm or hot to the touch.
Overheating Transformer or Control Board
Symptom
Softener discharges resin beads into plumbing; small amber beads appear in faucet aerators and fixtures.
Broken Bottom Distributor / Resin Loss
Symptom
Softener display is dim, flickering, or unreadable, but unit still seems to function.
Display / LCD Failure
Symptom
Softener does not regenerate at all (no cycling), but display is powered and shows normal time.
No Regeneration – Control / Programming Fault
Symptom
Softener emits a constant humming or buzzing sound from the control head.
Transformer / Motor Hum
Symptom
Softener emits a rotten egg or foul odor from softened water.
Bacterial Growth / Sulfur Odor
Symptom
Softener leaks water from around the control head or tank neck.
Control Valve / Tank O-Ring Leak
Symptom
Softener makes loud banging or knocking noises during regeneration.
Water Hammer / Rapid Valve Movement
Symptom
Softener never seems to regenerate, but water is still soft for now.
Under-Regeneration / Stuck Meter
Symptom
Softener produces water with a salty taste immediately after regeneration.
Incomplete Brine Rinse
Symptom
Softener regenerates too frequently, wasting salt and water.
Over-Regeneration / Meter Miscalibration
Symptom
Softener stuck in regeneration and continuously running water to drain.
Valve Stuck in Backwash/Rinse Position
Symptom
Water continuously flows to drain even when the softener is not in regeneration.
Continuous Drain Flow / Internal Valve Leak
Symptom
Water leaking from the brine tank or around the brine line connection.
Brine Tank / Brine Line Leak
Symptom
Water remains hard at faucets even though the softener appears to run normally.
Loss of Softening Capacity
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| Batt |
Display shows “Batt” or clock resets after power outages.
|
Backup Battery / Capacitor Low | View Details |
| Err1 |
Control display shows “Err1” and softener will not start a regeneration cycle automatically.
|
Turbine / Flow Meter Signal Fault | View Details |
| Err2 |
Display shows “Err2” and the softener stops mid-regeneration or will not start a cycle.
|
Motor / Drive Fault (No Position Feedback) | View Details |
| Err3 |
Display shows “Err3” and regeneration stops at a specific step (e.g., brine draw or backwash).
|
Valve Positioning / Cam Alignment Error | View Details |
| Err4 |
Display shows “Err4” and the softener does not respond to button presses or time-of-day is lost frequently.
|
Control Board Memory / Clock Error | View Details |
| Err5 |
Display shows “Err5” and the unit will not initiate or complete a regeneration cycle.
|
Program Configuration / Parameter Error | View Details |
| Err6 |
Display shows “Err6” and the softener appears to be in regeneration continuously or never regenerates.
|
Reed Switch / Position Sensor Fault | View Details |
| Err7 |
Display shows “Err7” and the unit does not meter water usage correctly (regenerates too often or not at all).
|
Meter Calibration / Flow Count Error | View Details |
| Err8 |
Display shows “Err8” and the brine tank does not refill properly after regeneration.
|
Brine Refill / Refill Valve Fault | View Details |
| Err9 |
Display shows “Err9” and the unit reports low salt or brine system fault even when salt is present.
|
Brine Level / Salt Sensor Fault | View Details |
| H0 |
Display shows “H0” or similar hardness error and regeneration frequency seems incorrect.
|
Hardness Setting / Sensor Error | View Details |
| Lo Salt |
Display shows “Lo Salt” or “Add Salt” even though the brine tank appears to have salt.
|
Low Salt Detection / Brine Concentration Fault | View Details |
| No AC |
Display is blank or shows “No AC” and the softener does not regenerate.
|
Power Supply / Transformer Fault | View Details |
| Service |
Display alternates between normal screen and “Service” or “Call for Service” message.
|
General Service Alarm / Preventive Maintenance Indicator | View Details |
| – |
Bottom of brine tank full of thick, slushy salt mush and debris; softener performance is poor.
|
Salt Mushing / Brine Contamination | View Details |
| – |
Brine tank fills with too much water (high water level) after regeneration.
|
Brine Overfill / Refill Control Failure | View Details |
| – |
Brine tank has very little or no water before regeneration, and salt does not seem to dissolve.
|
Insufficient Brine Refill | View Details |
| – |
No water at faucets when softener is in service position, but water returns when bypassed.
|
Blocked Control Valve / Inlet Obstruction | View Details |
| – |
Salt level in brine tank does not go down over time; salt appears to form a hard crust.
|
Salt Bridging | View Details |
| – |
Softener appears to regenerate at random times, not at the programmed regeneration time.
|
Unexpected / Unsynchronized Regeneration | View Details |
| – |
Softener causes noticeable drop in water pressure throughout the house.
|
Flow Restriction Through Softener | View Details |
| – |
Softener control head feels warm or hot to the touch.
|
Overheating Transformer or Control Board | View Details |
| – |
Softener discharges resin beads into plumbing; small amber beads appear in faucet aerators and fixtures.
|
Broken Bottom Distributor / Resin Loss | View Details |
| – |
Softener display is dim, flickering, or unreadable, but unit still seems to function.
|
Display / LCD Failure | View Details |
| – |
Softener does not regenerate at all (no cycling), but display is powered and shows normal time.
|
No Regeneration – Control / Programming Fault | View Details |
| – |
Softener emits a constant humming or buzzing sound from the control head.
|
Transformer / Motor Hum | View Details |
| – |
Softener emits a rotten egg or foul odor from softened water.
|
Bacterial Growth / Sulfur Odor | View Details |
| – |
Softener leaks water from around the control head or tank neck.
|
Control Valve / Tank O-Ring Leak | View Details |
| – |
Softener makes loud banging or knocking noises during regeneration.
|
Water Hammer / Rapid Valve Movement | View Details |
| – |
Softener never seems to regenerate, but water is still soft for now.
|
Under-Regeneration / Stuck Meter | View Details |
| – |
Softener produces water with a salty taste immediately after regeneration.
|
Incomplete Brine Rinse | View Details |
| – |
Softener regenerates too frequently, wasting salt and water.
|
Over-Regeneration / Meter Miscalibration | View Details |
| – |
Softener stuck in regeneration and continuously running water to drain.
|
Valve Stuck in Backwash/Rinse Position | View Details |
| – |
Water continuously flows to drain even when the softener is not in regeneration.
|
Continuous Drain Flow / Internal Valve Leak | View Details |
| – |
Water leaking from the brine tank or around the brine line connection.
|
Brine Tank / Brine Line Leak | View Details |
| – |
Water remains hard at faucets even though the softener appears to run normally.
|
Loss of Softening Capacity | View Details |
No matching codes found
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