Amfa4000
Amfa4000 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
Display shows E01 and the Amfa4000 will not start a regeneration cycle
Inlet Water Supply Fault
E02
E02 displayed and the Amfa4000 does not draw brine during regeneration
Brine Suction / Injector Blockage
E03
E03 error and the Amfa4000 is stuck in regeneration or will not advance through stages
Control Valve Motor / Cam Index Fault
E04
E04 displayed and the Amfa4000 shows no flow even when water is being used in the house
Flow Sensor Signal Loss
E05
E05 error and the Amfa4000 display is frozen or unresponsive
Control Board / User Interface Fault
E06
E06 displayed and the Amfa4000 regenerates at incorrect times or not at all
Clock / Timekeeping Error
E07
E07 error and the Amfa4000 reports high salt usage or frequent regenerations
Metering / Capacity Calculation Fault
E08
E08 displayed and the Amfa4000 fails to refill the brine tank after regeneration
Refill Solenoid / Piston Fault
E09
E09 error and the Amfa4000 overfills the brine tank or shows high brine level
Brine Overfill / Float Fault
E10
E10 displayed and the Amfa4000 reports low salt even when the brine tank contains salt
Salt Level Sensor Fault
E11
E11 error and the Amfa4000 reports high inlet pressure or shuts down during regeneration
High Inlet Pressure Protection
E12
E12 displayed and the Amfa4000 reports low inlet pressure or fails to complete regeneration
Low Inlet Pressure / Fill Fault
E13
E13 error and the Amfa4000 reports a temperature fault
Inlet Water Temperature Out of Range
E14
E14 displayed and the Amfa4000 cannot detect the rotor/cam home position
Position Sensor / Encoder Fault
E15
E15 error and the Amfa4000 reports memory or configuration corruption
EEPROM / Configuration Memory Fault
E16
E16 displayed and the Amfa4000 reports a drain/backwash fault
Drain Line Flow Restriction
E17
E17 error and the Amfa4000 indicates resin bed compaction or high differential pressure
Resin Bed Compaction / Channeling
E18
E18 displayed and the Amfa4000 reports a leak or internal water presence in the base tray (if equipped with leak sensor)
Leak Detection / Tray Sensor Triggered
E19
E19 error and the Amfa4000 reports a brine valve stuck open or closed
Brine Valve Actuation Fault
E20
E20 displayed and the Amfa4000 reports an internal communication error between display and main board
Internal Communication Bus Fault
Symptom
Amfa4000 causes noticeable drop in water pressure throughout the house during normal use
Flow Restriction Through Softener
Symptom
Amfa4000 display is dim, flickering, or hard to read
Display Backlight / Power Issue
Symptom
Amfa4000 display is on but buttons do not respond or respond intermittently
Keypad / User Interface Failure
Symptom
Amfa4000 emits a constant beeping or alarm sound without a visible error code
Audible Alarm Without Display Fault
Symptom
Amfa4000 frequently loses time or settings after short power cuts
Backup Power / Memory Retention Failure
Symptom
Amfa4000 is very noisy during regeneration (loud banging or hammering sounds)
Water Hammer / Rapid Valve Transition
Symptom
Amfa4000 occasionally makes clicking or grinding noises from the valve head even when not regenerating
Intermittent Valve Motor Operation
Symptom
Amfa4000 produces a rotten egg or sulfur smell in the water
Bacterial Contamination / Sulfur Interaction
Symptom
Amfa4000 stuck in regeneration and does not return to service mode
Regeneration Cycle Stalled
Symptom
Amfa4000 uses salt very quickly, requiring frequent refills
Excessive Salt Consumption
Symptom
Amfa4000 uses very little or no salt; salt level never seems to drop
Insufficient Brine Draw / No Regeneration
Symptom
Amfa4000 will not start at all, no display or lights
No Power / Dead Control
Symptom
Visible rust or discoloration in softened water from Amfa4000
Iron Fouling / Contamination
Symptom
Water from Amfa4000 has a salty taste after regeneration
Residual Brine in Service Water
Symptom
Water leaking from around the top valve head of the Amfa4000
Valve Head O-Ring / Seal Leak
Symptom
Water leaking from or around the brine tank of the Amfa4000
Brine Tank / Brine Line Leak
Symptom
Water remains hard at taps even though the Amfa4000 appears to run regenerations normally
Loss of Softening Capacity
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Display shows E01 and the Amfa4000 will not start a regeneration cycle
|
Inlet Water Supply Fault | View Details |
| E02 |
E02 displayed and the Amfa4000 does not draw brine during regeneration
|
Brine Suction / Injector Blockage | View Details |
| E03 |
E03 error and the Amfa4000 is stuck in regeneration or will not advance through stages
|
Control Valve Motor / Cam Index Fault | View Details |
| E04 |
E04 displayed and the Amfa4000 shows no flow even when water is being used in the house
|
Flow Sensor Signal Loss | View Details |
| E05 |
E05 error and the Amfa4000 display is frozen or unresponsive
|
Control Board / User Interface Fault | View Details |
| E06 |
E06 displayed and the Amfa4000 regenerates at incorrect times or not at all
|
Clock / Timekeeping Error | View Details |
| E07 |
E07 error and the Amfa4000 reports high salt usage or frequent regenerations
|
Metering / Capacity Calculation Fault | View Details |
| E08 |
E08 displayed and the Amfa4000 fails to refill the brine tank after regeneration
|
Refill Solenoid / Piston Fault | View Details |
| E09 |
E09 error and the Amfa4000 overfills the brine tank or shows high brine level
|
Brine Overfill / Float Fault | View Details |
| E10 |
E10 displayed and the Amfa4000 reports low salt even when the brine tank contains salt
|
Salt Level Sensor Fault | View Details |
| E11 |
E11 error and the Amfa4000 reports high inlet pressure or shuts down during regeneration
|
High Inlet Pressure Protection | View Details |
| E12 |
E12 displayed and the Amfa4000 reports low inlet pressure or fails to complete regeneration
|
Low Inlet Pressure / Fill Fault | View Details |
| E13 |
E13 error and the Amfa4000 reports a temperature fault
|
Inlet Water Temperature Out of Range | View Details |
| E14 |
E14 displayed and the Amfa4000 cannot detect the rotor/cam home position
|
Position Sensor / Encoder Fault | View Details |
| E15 |
E15 error and the Amfa4000 reports memory or configuration corruption
|
EEPROM / Configuration Memory Fault | View Details |
| E16 |
E16 displayed and the Amfa4000 reports a drain/backwash fault
|
Drain Line Flow Restriction | View Details |
| E17 |
E17 error and the Amfa4000 indicates resin bed compaction or high differential pressure
|
Resin Bed Compaction / Channeling | View Details |
| E18 |
E18 displayed and the Amfa4000 reports a leak or internal water presence in the base tray (if equipped with leak sensor)
|
Leak Detection / Tray Sensor Triggered | View Details |
| E19 |
E19 error and the Amfa4000 reports a brine valve stuck open or closed
|
Brine Valve Actuation Fault | View Details |
| E20 |
E20 displayed and the Amfa4000 reports an internal communication error between display and main board
|
Internal Communication Bus Fault | View Details |
| – |
Amfa4000 causes noticeable drop in water pressure throughout the house during normal use
|
Flow Restriction Through Softener | View Details |
| – |
Amfa4000 display is dim, flickering, or hard to read
|
Display Backlight / Power Issue | View Details |
| – |
Amfa4000 display is on but buttons do not respond or respond intermittently
|
Keypad / User Interface Failure | View Details |
| – |
Amfa4000 emits a constant beeping or alarm sound without a visible error code
|
Audible Alarm Without Display Fault | View Details |
| – |
Amfa4000 frequently loses time or settings after short power cuts
|
Backup Power / Memory Retention Failure | View Details |
| – |
Amfa4000 is very noisy during regeneration (loud banging or hammering sounds)
|
Water Hammer / Rapid Valve Transition | View Details |
| – |
Amfa4000 occasionally makes clicking or grinding noises from the valve head even when not regenerating
|
Intermittent Valve Motor Operation | View Details |
| – |
Amfa4000 produces a rotten egg or sulfur smell in the water
|
Bacterial Contamination / Sulfur Interaction | View Details |
| – |
Amfa4000 stuck in regeneration and does not return to service mode
|
Regeneration Cycle Stalled | View Details |
| – |
Amfa4000 uses salt very quickly, requiring frequent refills
|
Excessive Salt Consumption | View Details |
| – |
Amfa4000 uses very little or no salt; salt level never seems to drop
|
Insufficient Brine Draw / No Regeneration | View Details |
| – |
Amfa4000 will not start at all, no display or lights
|
No Power / Dead Control | View Details |
| – |
Visible rust or discoloration in softened water from Amfa4000
|
Iron Fouling / Contamination | View Details |
| – |
Water from Amfa4000 has a salty taste after regeneration
|
Residual Brine in Service Water | View Details |
| – |
Water leaking from around the top valve head of the Amfa4000
|
Valve Head O-Ring / Seal Leak | View Details |
| – |
Water leaking from or around the brine tank of the Amfa4000
|
Brine Tank / Brine Line Leak | View Details |
| – |
Water remains hard at taps even though the Amfa4000 appears to run regenerations normally
|
Loss of Softening Capacity | View Details |
No matching codes found
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