Water Softener Control Head Replacement — Arnold, MD
An Arnold homeowner had a 7-year-old water softener that stopped regenerating. The control head had failed — the motor gear stripped and the timer board burned out. We replaced the control head, reprogrammed the regeneration cycle to match the home's actual water hardness, and restored full soft water the same day.
The Problem
A homeowner in Arnold called after noticing their water had become hard again — soap wasn't lathering, there was a film on the shower glass, and the dishwasher was leaving spots on glasses. The water softener was 7 years old and had been working well until about three weeks prior. The unit was not regenerating — the homeowner could hear it used to cycle at 2 AM, but that had stopped. Salt level in the brine tank had not dropped in weeks.
Our Diagnosis
We inspected the softener and confirmed it was not regenerating. The control head — the electronic valve assembly that controls the regeneration cycle — had failed. The timer board had burned out and the motor gear that drives the valve through its regeneration positions had stripped. The resin bed itself was in good condition, just exhausted from lack of regeneration. The brine tank was clean with no salt bridges. The unit was worth repairing — a new control head is significantly less expensive than a full softener replacement, and the resin and tank were in excellent shape.
The Repair Process
- 1Confirmed control head failure — timer board burned out, motor gear stripped
- 2Inspected resin bed — resin in good condition, no channeling or fouling
- 3Inspected brine tank — clean, no salt bridges, brine valve functioning
- 4Ordered and installed a replacement control head matched to the existing valve body
- 5Performed a manual regeneration cycle to recharge the exhausted resin bed
- 6Programmed the regeneration schedule based on household size (4 people) and actual water hardness (22 GPG)
- 7Set regeneration frequency to every 4 days and verified the 2 AM cycle time
- 8Tested water hardness at the tap — confirmed 0 GPG (fully softened)
- 9Verified salt draw and brine refill cycle functioning correctly
The Outcome
Full soft water restored the same day. The homeowner avoided a $1,200–$1,800 full softener replacement by repairing the control head for significantly less. The reprogrammed regeneration cycle is now correctly matched to the home's actual water hardness and household demand — the previous programming had been set for a smaller household and was regenerating too infrequently for the family's usage.
Key Takeaway
A failed water softener control head does not always mean you need a new softener. If the resin bed and tank are in good condition, a control head replacement is a cost-effective repair. Always have a plumber inspect the full unit before replacing it.
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