It is not regenerating
The cycle never starts on its own, or will not complete when you start it.
Water Softener Troubleshooting by Symptom
Do not begin by replacing a part. First confirm the symptom, make sure the unit has power and is not in bypass, and see whether it can complete a manual regeneration. Your answers below will route you to the smallest useful next check.
Start the diagnosis
Seven checks, in the order that rules out the most with the least effort. Each one says what its answer establishes and — just as important — what it leaves open. Your position is kept in the page address only, so you can bookmark or share a result. Nothing is stored about you.
The checks, in order
Work down this list. Each question says what its answer establishes and what it leaves open. Skipping a question does not save time — it moves the uncertainty further down.
-
Is the display powered and readable?
A control that has lost power cannot start a regeneration on schedule, so nothing further down this list can be judged until power is confirmed.
- Yes, the display is lit and shows a steady time → go to the next question
- The display is blank → see the outcome below
- The display is lit but the time is flashing → see the outcome below
- The display shows an error code → see the outcome below
-
Is the unit in service rather than bypass?
A softener in bypass sends the household untreated water while continuing to look normal. It is the cheapest thing to rule out and one of the most common explanations for hard water at the tap.
- Yes, it is in service → go to the next question
- It is in bypass, or I cannot tell → see the outcome below
-
Does the treated water actually test hard?
How water feels is not a measurement. Whirlpool and Kenmore both recommend testing rather than judging by feel, because supplies differ. Testing turns a vague complaint into a number you can act on.
- Yes, a test strip shows hard water after the softener → go to the next question
- No, it tests soft — my concern is the salt or the tank → go to the next question
- I have not tested it yet → see the outcome below
-
Can the unit start and finish a manual regeneration?
This is the single most informative test in the whole list. A unit that regenerates on command but never on its own has a scheduling, metering or programming problem. A unit that cannot complete a cycle has a mechanical or electrical one. The two need completely different checks.
- Yes, it runs a full cycle when I start one → go to the next question
- The motor does not start at all → see the outcome below
- It starts but stalls or will not finish → see the outcome below
- I do not know how to start one on my model → see the outcome below
-
Has the salt level changed across more than one regeneration?
A level that looks unchanged after a few days proves nothing on its own — some units use very little salt per cycle. What matters is whether it moves across several documented cycles.
- Yes, salt is being used → go to the next question
- No, the level has not moved for weeks → see the outcome below
- I have not watched it for long enough to say → see the outcome below
-
How much water is standing in the brine tank when the unit is at rest?
Some water in a brine tank is normal and the level legitimately rises and falls during a cycle. Water above the salt when the unit is at rest is a different symptom with its own causes.
- A few inches at the bottom, below the salt → go to the next question
- Water is standing above the salt, or reaching the overflow → see the outcome below
- The tank is dry → see the outcome below
-
Does water flow to the drain only during a cycle, or all the time?
Continuous drain flow wastes water and prevents the resin from holding a charge. It is a distinct fault from a unit that never drains at all.
- Only during a regeneration, as expected → see the outcome below
- It drains constantly → see the outcome below
- No water reaches the drain during a cycle → see the outcome below
What each answer means
Treat this as a power or control board problem first
A blank display means the control is not running, so it cannot start a regeneration on any schedule. Whirlpool’s documented checks are the power cord and outlet, the wiring under the cover, and then the control board itself. GE similarly asks you to confirm the transformer is plugged in and to test the outlet with a lamp, noting that if a wall switch controls the outlet it must stay on at all times.
Stop Stop if you find wet wiring, moisture on the control board, or any damaged electrical part. Water and mains electricity together is not a homeowner check. Unplug the unit and call the manufacturer or a qualified electrician.
- What this establishes
- The control is not powered or not running.
- What it does not establish
- Nothing about the valve, the resin, the salt or the plumbing. A blank display hides all of them.
Set the time before judging anything else
A flashing time display usually means the control lost power and does not know the time of day. Whirlpool lists an incorrect time setting as a documented cause of water that is hard only some of the time, because a time-scheduled recharge then runs at the wrong hour — often while the household is drawing water.
- What this establishes
- The control has lost its sense of time, which alone can explain intermittent hard water.
- What it does not establish
- Whether the hardness setting, the metering or the salt use are also wrong. Correct the clock, then run through this again.
Check the hardness value you should be using Find your model’s manual
Read the code against your own manual before touching anything
Error codes are not shared between brands or even between control families of the same brand. As one example of how specific they are: Whirlpool documents Err1, Err3 and Err4 on the WHES30 and WHES33 as a fault in the wiring harness, the position switch, the valve or the motor, and Err5 as a control board fault, and states that while a code is displayed every button except PROGRAM stops working. WaterBoss documents an entirely different code, E2, as the connection between the computer and the motor. Neither list transfers to the other.
Stop Stop if clearing the code would mean opening a pressurised component or working near wet wiring.
Model needed This step needs the document for your exact model. We will not print a procedure that might belong to different equipment.
- What this establishes
- The control has detected a fault it can name.
- What it does not establish
- What the code means on your equipment, unless your own manual says so. A code table from another brand is worse than no information.
Put the unit into service, then wait before re-testing
On a single bypass valve, Whirlpool and Rheem both document that the handle stays pulled OUT in normal service, and that pushing it IN sends water around the softener. On a three-valve bypass, service means the inlet and outlet valves open and the middle bypass valve fully closed. Rheem notes that a partly open bypass still lets hard water through. GE adds that after a correction you should allow a day or so for soft water to flush through the water heater, so an immediate hot-tap test can still read hard.
Stop Do not force a stuck bypass handle. Rheem suggests twisting or turning it to free it; beyond that, a cracked bypass on a pressurised line is a leak in your home.
- What this establishes
- Whether untreated water was reaching the house regardless of how the softener was working.
- What it does not establish
- Whether the softener itself regenerates correctly. Re-run this flow after the system has been in service for a day.
Test the water before changing anything
Whirlpool and Kenmore both describe the same final check: after a completed recharge, test at several faucets with a hardness test strip, and read 0–3 gpg (0–50 ppm) as soft. Testing first stops you from adjusting a setting that was never wrong. Test the untreated supply too — the number the controller needs is the hardness going in, not the hardness coming out.
- What this establishes
- Nothing yet. This is the measurement that everything further down the list is judged against.
- What it does not establish
- Everything else. A softener that feels wrong but tests soft has a different problem from one that tests hard.
Convert your test result to a setting value Back to all symptoms
A cycle that will not start is an electrical or valve fault
If the control is powered and a manual regeneration produces no motor movement at all, the fault is between the control and the valve rather than in the salt or the plumbing. Whirlpool’s own code list attributes a motor that does not run to the wiring harness, the position switch, the valve creating high torque, or the motor itself — all of which its manual routes to a service person rather than the owner.
Stop Stop here if the next step would mean dismantling the valve on a pressurised line or testing voltages. Contact the manufacturer or a qualified technician.
Model needed This step needs the document for your exact model. We will not print a procedure that might belong to different equipment.
- What this establishes
- The control cannot drive the valve.
- What it does not establish
- Which of those four parts is at fault. Distinguishing them needs the diagnostics in your own service documentation.
A cycle that starts but will not finish
Whirlpool documents a stalled or clicking motor as either a motor malfunction or an internal valve fault putting high torque on the motor, and lists replacing the rotor and seal or the motor and switch as the corrections. Both are service repairs, not adjustments. Before assuming the worst, confirm the cycle really is stalling rather than simply being long: Whirlpool describes a normal recharge as 2 to 2.5 hours, with the brine draw stage alone taking around two of them.
Stop Stop before opening the valve body. It is on a pressurised water line.
Model needed This step needs the document for your exact model. We will not print a procedure that might belong to different equipment.
- What this establishes
- The valve is not completing its rotation.
- What it does not establish
- Whether the motor or the valve is the cause.
Get the right manual before starting a cycle
How you start a manual regeneration is genuinely model-specific. On the Whirlpool WHES30 and WHES33 it is a press and hold of the RECHARGE button for about three seconds; on another manufacturer’s control it is a different button, a different hold time, or a menu. We will not print a sequence that might belong to somebody else’s equipment.
Model needed This step needs the document for your exact model. We will not print a procedure that might belong to different equipment.
- What this establishes
- Nothing yet, because the most informative test in this flow has not been run.
- What it does not establish
- Everything downstream of a manual regeneration, which is most of the remaining checks.
Salt that never moves: check in this order
Whirlpool publishes a specific order for little or no salt use, and it starts further back than most people expect: confirm the unit is actually metering water, because a unit that is not metering is not recharging and therefore has no reason to use salt. Only then check for a salt bridge or a solidified block, and only then check whether the fill stage is putting water into the tank at all.
- What this establishes
- That salt is not being consumed.
- What it does not establish
- Whether the cause is upstream (no regeneration is happening) or in the brine tank (a bridge, or no fill). Those have different fixes.
Work through the not-using-salt guide Check whether it is regenerating at all
Watch across several cycles before calling it a fault
A salt level that looks unchanged over a few days is weak evidence. Some units use a small dose per cycle, and a demand-initiated control regenerates only when metered use calls for it, which can be many days apart. Mark the level, note the date, and compare after several documented cycles rather than acting on an impression.
- What this establishes
- Nothing conclusive yet. A few days of observation is not enough evidence to act on.
- What it does not establish
- Whether salt use is genuinely abnormal, and therefore whether anything is wrong at all.
How to tell if it is regenerating Read the not-using-salt guide
Water above the salt is a defined fault, not a quirk
Whirlpool states plainly that 0 to 4 inches in the bottom of the tank is normal and that water standing above the salt is a sign of a problem. Its documented order is to rule out external leaks first, then to check the drain installation — specifically that there are two separate drain lines, one from the valve and one from the tank overflow. Its owner’s manual lists seven causes for a tank full of water with flow to drain during service, including a plugged nozzle and venturi, a plugged drain hose, the two drain lines joined by a tee, water pressure that is too low or too high, and a dirty or broken brine float.
Stop Stop if you find an active leak, or if the next step would mean opening a component you cannot isolate from house pressure.
- What this establishes
- That the level is outside the range the manufacturer calls normal.
- What it does not establish
- Which of the seven documented causes applies. They are told apart by inspection, in order.
A completely dry tank points at the fill stage
A softener makes brine by filling the tank with water during the fill stage and letting it dissolve salt. Whirlpool describes fill as taking roughly 5 to 15 minutes and raising the level anywhere from a few inches to a few feet, after which the level returns to the normal few inches. A tank that is bone dry at rest, with no salt being used, suggests the fill stage is not delivering water — which is the third check in Whirlpool’s own little-or-no-salt-use sequence.
- What this establishes
- That no brine is being made.
- What it does not establish
- Whether the cause is the fill stage, a blocked line, or a control that is not cycling at all.
Constant drain flow
Whirlpool states the most common causes of constant draining are the valve head stuck in an open rinse position, or excessively high water pressure. Its documented approach is to bypass the unit to stop the flow, restore the display to a steady clock, then advance the valve through a full dry recharge while bypassed to see whether the head frees itself — and if the hose still leaks afterwards, to treat it as a rotor and seal replacement.
Stop Uncontrolled drain flow that you cannot stop by bypassing the unit is a plumbing emergency, not a diagnostic step. Shut off the supply and call a plumber.
- What this establishes
- That water is leaving through the drain outside of a cycle.
- What it does not establish
- Whether the valve position or the supply pressure is responsible.
Read the drain and discharge checks Find your model’s manual
No drain flow during a cycle
GE states that any restriction in the drain hose — pinched, plugged, elevated too high or otherwise restricted — may prevent proper operation of the nozzle and venturi and reduce or prevent brine draw during recharge. That is the mechanism connecting a drain problem to a salt problem: without flow through the venturi, no brine is drawn, so the resin is never recharged and the salt never goes down.
Stop Drain routing is also governed by local plumbing code and by your manual’s air gap requirements. Do not re-route a drain line on the basis of a general article, including this one.
- What this establishes
- That the discharge path is restricted, or that the cycle is not reaching the stage that drains.
- What it does not establish
- Where the restriction is. Height, kinks and internal blockage all look the same from outside the hose.
Read the drain and discharge checks Read the not-using-salt guide
The mechanics look right — review the programming
The unit is powered, in service, regenerating on command, using salt, holding a normal brine level and draining only during a cycle. That combination points away from hardware and towards the numbers programmed into it. Whirlpool lists an incorrect hardness setting, an incorrect model code and an increase in supply hardness among its documented causes of water that is hard some of the time, and notes that raising the hardness number is not simply a way to get softer water. Its manual also lists a leaking faucet or toilet as a cause, since the extra volume exhausts the resin sooner than the control expects.
- What this establishes
- That the mechanical path is behaving as documented.
- What it does not establish
- Whether the programmed hardness matches your current supply, or whether household water use has changed.
Calculate the hardness value to program Check the capacity your household needs
Guides by symptom
If you already know which of these describes your unit, go straight to it. Each guide repeats the safety limits and links back here.
-
-
The salt level never goes down
Salt looks untouched across several weeks, or the tank is not making brine.
-
There is too much water in the brine tank
Water is standing above the salt, or the level keeps rising.
-
It drains constantly, or not at all
Separate normal discharge during a cycle from flow that should not be happening.
-
I think the resin needs replacing
Check whether the evidence actually points at the media before buying any.
-
I have a Whirlpool softener
Symptom, safe check and the exact manual section, with WHES30 and WHES33 in detail.
-
I have a Culligan softener
Identify the family first — they do not share an error vocabulary, and one shows ERR codes while others show words.
-
I have a Fleck 5600SXT control
Pentair’s error codes, and every troubleshooting row sorted into owner check, screen reading or service work.
The water still feels hard
Start by turning the impression into a measurement. Whirlpool and Kenmore both advise walking through their checks rather than judging by the feel of the water, because supplies differ, and both describe a strip result of 0 to 3 gpg (0 to 50 ppm) as soft. Test after a completed regeneration, at several faucets, on the cold side.
If the test confirms hard water, these are the documented causes worth separating:
| Likely cause | What would confirm it | Safe next check |
|---|---|---|
| The unit is in bypass | A single bypass handle pushed in, or a three-valve bypass with the middle valve open. | Return it to service, then allow a day or so for soft water to flush through the water heater before re-testing the hot side, as GE advises. |
| No salt in the tank | An empty or nearly empty salt tank. | GE lists this first and recommends keeping the level at least a quarter full, ideally three-quarters. Refill, then start a regeneration. |
| A salt bridge | A broom handle pushed into the salt meets something hard before reaching the bottom. | Break it carefully with the handle. Whirlpool warns against sharp or pointed objects, which can puncture the tank, and against pounding on the outside. GE suggests a gallon of warm — not hot — water if it will not break. |
| The hardness value is wrong | The programmed number does not match a current test of the untreated supply, or the supply has changed. | Recalculate the value and check it against your manual before changing it. |
| The wrong model code is programmed | The code shown in the control's diagnostics does not match the unit — Whirlpool shows L30P for a WHES30 and L33P for a WHES33. | Whirlpool states an incorrect code makes the softener run on incorrect configuration data. Correct it using your own manual. |
| Hot water used during a recharge | Hard water at the hot tap after a regeneration that ran while the household was drawing hot water. | Whirlpool lists this as a documented cause: the water heater fills with hard water. Move the regeneration time. |
| A blending valve is open | A bypass fitted with a blending valve that has been turned counter-clockwise. | Rheem documents this as a deliberate feature that adds a stream of hard water to the softened output. It will make a working softener test hard. |
| Excessive water use, or a leak | A running toilet or dripping faucet. Whirlpool notes a small leak can waste hundreds of gallons in a few days. | Fix leaks first. Extra volume exhausts the resin before the control expects it. |
| Exhausted resin | WaterBoss states that reduced house pressure is usually caused by exhausted resin, and that pressure returning when the unit is bypassed is a good indication. | This is a maintenance decision rather than an adjustment. Confirm against your model's documentation before buying media. |
The display is blank or shows an error
A blank display
A blank display means the control is not running, so it cannot regenerate on any schedule. Whirlpool's documented checks start outside the unit: confirm the power cord is plugged in, inspect the wiring for damage, and test the outlet with a lamp or a fan. GE adds a specific warning — if a wall switch controls that outlet, the switch has to stay on at all times. Whirlpool then asks you to check under the cover for damage or moisture, noting that a leak onto the control board can destroy the display.
Whirlpool's own troubleshooting table lists three causes for a blank display: an unplugged or disconnected power supply, a blown fuse or tripped breaker or a switched-off circuit, and a control board malfunction.
An error code
Error codes do not transfer between brands, and often not between control families within a brand. Two published examples show how far apart they are: Whirlpool documents Err1, Err3 and Err4 on the WHES30 and WHES33 as a fault in the wiring harness or position switch, a valve fault causing high torque, or an inoperative motor, and Err5 as a control board malfunction — and notes that while a code is displayed every button except PROGRAM stops working. WaterBoss documents a completely different code, E2, as the connection between the computer and the motor, with its own reconnection sequence.
Neither list is valid for the other manufacturer's equipment, and neither is valid for a brand not named here. Find the document for your own model and read its code table.
Drain and discharge
Two opposite symptoms live here, and it is worth being clear which one you have. Both are covered in more depth, with an interactive check and Whirlpool's published drain requirements, on the drain line diagnosis page.
It drains constantly
Whirlpool states the most common causes are the valve head getting stuck in an open rinse position, or excessively high water pressure. Its documented approach is to bypass the unit to stop the flow, restore a steady clock on the display, then advance the valve through a full dry recharge while it stays bypassed to see whether the head frees itself. If the hose still leaks afterwards, Whirlpool treats it as a rotor and seal replacement.
Nothing reaches the drain during a cycle
GE states that any restriction in the drain hose — pinched, plugged, elevated too high or otherwise restricted — may prevent proper operation of the nozzle and venturi and reduce or prevent brine draw during recharge. That is the mechanism connecting a drain problem to a salt problem: without flow through the venturi there is no suction, so no brine is drawn, so the resin is never recharged and the salt level never moves.
Whirlpool's owner's manual also lists a specific installation fault worth checking: the valve drain line and the salt tank overflow drain connected together by a tee. Its instruction is to disconnect the tee and run separate drain lines.
Identify the part a check refers to
Manuals name components precisely, and a check that says "inspect the nozzle and venturi" is useless if you cannot find it. This is a generic arrangement — use it to locate the part in the instruction, then confirm against the diagram in your own manual before touching anything.
Diagram key
- 1 Inlet (hard water in). Untreated water arrives from the house supply.
- 2 Bypass valve. Routes water either through the softener or around it. In service, a single bypass handle sits pulled out; pushed in, water skips the unit entirely.
- 3 Control valve. The head on top of the resin tank. It meters water use, decides when to regenerate and drives the valve through each stage of the cycle.
- 4 Resin tank. Holds the ion exchange resin that removes hardness minerals from the water passing through it.
- 5 Riser tube and distributor. The central tube carrying water to the bottom of the resin bed and back up to the valve.
- 6 Brine tank (salt tank). Holds the salt. Water added during the fill stage dissolves salt to make the brine that recharges the resin.
- 7 Brine well and float. The tube inside the brine tank containing the float assembly, which limits how high the water level can rise.
- 8 Brine line. Carries brine from the tank to the control valve during the brine draw stage.
- 9 Nozzle and venturi (injector). Creates the suction that draws brine out of the tank. A restriction here, or in the drain line, can reduce or prevent brine draw.
- 10 Drain line. Carries brine and rinse water away during regeneration. Manufacturers require it to be unrestricted and installed to their air gap instructions.
- 11 Tank overflow line. A separate discharge from the brine tank. Manufacturers document this as its own line, not joined to the valve drain by a tee.
- 12 Outlet (soft water out). Treated water continues to the house.
Official troubleshooting documents used on this page
These are the documents the checks above are drawn from. Where two manufacturers describe the same physical test, both are listed so you can see it is not our invention.
-
Whirlpool
Water Softener Owner’s Manual — Models WHES30 and WHES33 PDF
Contains the specification table, the hardness and recharge programming steps, the salt bridge procedure, the troubleshooting table and the error codes. The model code shown in diagnostics is L30P for the WHES30 and L33P for the WHES33.
-
Whirlpool
How do I know if my softener is working?
Routes by the first seven digits of the serial number, printed on the inside rim of the tank under the salt lid hinges.
-
GE
Water Softener — Not Softening the Water
GE’s own ordered checks for a unit that is not softening, including the salt bridge test and the nozzle and venturi inspection.
-
Kenmore
How do I know if my softener is working?
Kenmore routes by the first seven digits of the serial number. Use the Kenmore site for a Kenmore unit even though the layout resembles other brands’ support sites.
-
WaterBoss
Covers reduced pressure, high salt use, the E2 error code, salt bridges and a flashing 00 display.
-
Rheem
Includes the blending valve, which deliberately mixes hard water into the softened output and can explain a hard test result on a working unit.
Sources checked
Each link goes to the manufacturer or organisation that published it. We do not host copies.
- Whirlpool Water Solutions Whirlpool Water Softener Owner’s Manual — Models WHES30 and WHES33 PDF
- GE Appliances Water Softener — Not Softening the Water
- Whirlpool Water Solutions Support How Does a Bypass Valve Work?
- Rheem Water Treatment Support How Does a Bypass Valve Work?
- Whirlpool Water Solutions Support How do I know if my softener is working?
- Kenmore Water Solutions Support How do I know if my softener is working?
- Whirlpool Water Solutions Support Softener Not Recharging Automatically
- Whirlpool Water Solutions Support How long does it take for a softener to recharge?
- Whirlpool Water Solutions Support Little/No Salt Use
- Whirlpool Water Solutions Support How Much Water Should Be in the Salt Tank?
- Rheem Water Treatment Support How Much Water Should Be in the Salt Tank?
- Whirlpool Water Solutions Support Constant Draining on Water Softener
- Whirlpool Water Solutions Support Hardness Level Programming
- Whirlpool Water Solutions Support Excess Water in Tank
- WaterBoss Troubleshooting Tips
- Water Quality Association Glossary of Terms