Experiencing salt cell problems can be frustrating, especially when you rely on your salt chlorine generator for clean pool water. A common cause of such issues is excessive calcium buildup on the cell plates, hindering its ability to properly electrolyze salt. Fortunately, Taylor Technologies, a leading provider of water testing kits, offers solutions to identify and address these problems accurately. Ignoring salt cell problems can lead to diminished chlorine production, affecting overall water quality, and potentially necessitating professional assistance from pool maintenance experts at Leslie’s Pool Supplies. Furthermore, the pool pump‘s performance significantly impacts the salt cell’s efficiency; a malfunctioning pump can starve the cell of adequate water flow, exacerbating salt cell problems.

Image taken from the YouTube channel Chlorine King Pool Service , from the video titled How to Diagnose & Fix Your Hayward AquaRite Chlorine Generator .
Salt Cell Problems? Easy Fixes You NEED to Know!
Dealing with a malfunctioning salt cell can be frustrating, but many issues have simple solutions. This guide breaks down common salt cell problems and offers practical fixes you can implement.
Understanding Your Salt Cell
Before diving into troubleshooting, it’s crucial to understand what a salt cell does and how it works.
What is a Salt Cell?
A salt cell, also known as a salt chlorinator, uses electrolysis to convert salt (sodium chloride) into chlorine. This chlorine sanitizes your pool water. It’s a more convenient and often gentler alternative to traditional chlorine tablets or liquid chlorine.
How Does a Salt Cell Work?
Inside the salt cell, electrodes pass an electric current through the salt water. This process splits the sodium chloride molecules, creating chlorine gas. The chlorine then dissolves in the water, providing consistent sanitation.
Common Salt Cell Problems and Solutions
This section outlines the most frequent issues people encounter with their salt cells and offers step-by-step solutions.
1. Low or No Chlorine Production
This is perhaps the most common complaint. Here are the potential causes and fixes:
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Low Salt Levels: Insufficient salt in the water will hinder chlorine production.
- Solution: Test your pool water’s salt level using a salt test kit or have it tested at a pool supply store. Adjust salt levels according to your salt cell manufacturer’s recommendations. Generally, this range is between 2500-4500 ppm (parts per million).
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High Calcium Hardness: Excessive calcium can build up on the salt cell plates, reducing its efficiency.
- Solution: Check your pool water’s calcium hardness levels. If they are too high, use a calcium hardness reducer available at pool supply stores. Consider adding a scale inhibitor to prevent future buildup.
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Cold Water Temperatures: Salt cells often struggle to produce chlorine efficiently in cold water (below 60°F/15°C).
- Solution: Many salt cells have a temperature sensor and will shut down automatically when the water is too cold. In this case, there is no fix besides waiting for warmer weather. You might need to supplement with traditional chlorine during colder months.
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Dirty Salt Cell: Calcium and other mineral deposits can accumulate on the cell plates, inhibiting chlorine production.
- Solution: Clean the salt cell. Most salt cells have a self-cleaning function (reverse polarity), but manual cleaning may be necessary. Follow these steps:
- Turn off the power to your salt system.
- Remove the salt cell from the plumbing.
- Inspect the plates. If they are coated with deposits, use a diluted muriatic acid solution (follow safety precautions – wear gloves and eye protection).
- Soak the cell in the solution for 15-20 minutes.
- Rinse thoroughly with a garden hose.
- Reinstall the cell and turn the system back on.
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Old or Failing Salt Cell: Salt cells have a limited lifespan (typically 3-5 years).
- Solution: If you’ve tried all other troubleshooting steps and your salt cell is several years old, it might be time to replace it.
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Incorrect System Settings: The salt cell might be set to a low chlorine production level.
- Solution: Check your salt system’s control panel and ensure the chlorine production percentage is set appropriately for your pool size and usage.
2. Salt Cell Error Codes
Salt cell systems often display error codes indicating specific problems. Refer to your manufacturer’s manual for a detailed explanation of each code. Here are some common error codes:
- "Low Salt" Error: Indicates insufficient salt levels.
- Solution: Test and adjust salt levels as described above. Even if you think the salt level is correct, re-test to be sure the error isn’t being caused by a faulty salt sensor.
- "High Salt" Error: Indicates excessive salt levels.
- Solution: Partially drain the pool and refill with fresh water to dilute the salt concentration. Retest and adjust as necessary.
- "Low Flow" Error: Indicates insufficient water flow through the salt cell.
- Solution: Check your pump, filter, and plumbing for obstructions. Clean the filter and ensure all valves are open.
- "Cell Voltage Low" or "Cell Current Low" Error: Indicates a potential problem with the cell itself or the power supply.
- Solution: Inspect the cell for damage. Check the wiring connections to the cell and the power supply. If the problem persists, consult a qualified pool technician.
3. Short Salt Cell Lifespan
If your salt cell seems to be failing prematurely, consider these factors:
- Excessive Calcium Hardness: As mentioned earlier, high calcium levels can lead to rapid scaling on the cell plates, shortening its lifespan.
- Solution: Maintain proper calcium hardness levels and use a scale inhibitor.
- Overuse of Shock: Frequent shocking with high doses of chlorine can damage the salt cell.
- Solution: Consider using non-chlorine shock (potassium monopersulfate) or reduce the frequency and dosage of chlorine shock treatments.
- Running the Cell for Extended Periods: Overworking the salt cell can shorten its lifespan.
- Solution: Adjust the chlorine production percentage based on your pool’s needs. Avoid running the cell at maximum output unnecessarily.
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Poor Water Chemistry: Imbalanced pH, alkalinity, and other water parameters can contribute to cell degradation.
- Solution: Regularly test and balance your pool water chemistry to maintain optimal conditions. The ideal range for pool water parameters is as follows:
Parameter Ideal Range pH 7.2 – 7.8 Alkalinity 80 – 120 ppm Calcium Hardness 200 – 400 ppm Cyanuric Acid (CYA) 30 – 50 ppm
4. Water is Cloudy
Cloudy water isn’t always a salt cell problem, but it can be indirectly related. If your salt cell isn’t producing enough chlorine, it can lead to algae growth and cloudy water.
- Solution: Ensure your salt cell is functioning correctly and producing enough chlorine. Check your water chemistry, especially pH and alkalinity, and adjust as needed. Consider using a clarifier to help remove suspended particles. Shocking the pool might also be necessary.
Preventing Future Salt Cell Problems
Proactive maintenance is key to extending the life of your salt cell and avoiding future headaches.
- Regular Water Testing: Test your pool water chemistry at least weekly and adjust as needed.
- Proper Salt Level Maintenance: Keep the salt level within the manufacturer’s recommended range.
- Salt Cell Cleaning: Inspect and clean the salt cell regularly, especially if you have hard water.
- Monitor Calcium Hardness: Control calcium hardness levels to prevent scaling.
- Professional Inspection: Consider having your salt system professionally inspected annually.
Salt Cell Problems: Frequently Asked Questions
This FAQ addresses common questions about salt cell problems and their solutions, expanding on the information provided in the main article.
What are the most common signs of salt cell problems?
Common signs include low chlorine levels despite the salt chlorinator running, a persistent "low salt" warning even with adequate salt levels, and visible scaling or buildup on the salt cell plates. These issues often indicate the salt cell needs cleaning or replacement.
How often should I clean my salt cell?
Generally, you should inspect your salt cell every 3-6 months. Depending on your water hardness and usage, cleaning might be needed more or less frequently. Regular inspection helps prevent salt cell problems caused by excessive calcium buildup.
What happens if I don’t address salt cell problems promptly?
Ignoring salt cell problems can lead to significantly reduced chlorine production, resulting in algae growth and unsanitary pool conditions. It can also shorten the lifespan of your salt cell, requiring more frequent and costly replacements.
Besides cleaning, what else can cause salt cell problems?
In addition to scaling, issues like incorrect salt levels, imbalanced water chemistry (pH, alkalinity), and a faulty flow sensor can contribute to salt cell problems. Regularly testing your water and maintaining proper balance is crucial for optimal salt cell performance.
So, there you have it! Hopefully, you’re feeling more confident tackling those salt cell problems. Now get out there and enjoy that sparkling clean pool – you deserve it!