Frequent issues with Hayward Aqua Rite, Aqua Trol, Swim Pure, Pro Logic and Aqua Logic

Is your Hayward salt system showing an error, or not making chlorine anymore? Here are the problems we see most often, what you can check yourself, and when the board needs a repair. Good news: when the salt reading is wrong, about 95% of the time it’s a worn cell, not the board.

Applies to: Aqua Rite, Aqua Trol, Swim Pure, Aqua Nature, Aqua Rite PRO, Pro Logic, Aqua Logic / Aqua Plus, OmniLogic and OmniPL.

Salt system problem? Find out in 2 minutes if you need a repair

Most low-salt problems come from a worn cell, not the board. Answer a few questions to know what to do, before you call.

Start the troubleshooting guide

Or start with your system:

Still not solved after the guide? Call us at 438-448-0782.

Salt and cell problems (the most common)

The salt reading is wrong

The system has no salt sensor: it calculates the salt from the cell. A store water test and the instant salt test tell you if it’s the cell or the board.

See the fix →

Check Salt and Inspect Cell lights on

Not enough salt, or a cell at the end of its life. Check the salt at a pool store first, then the cell type set in the system.

See the checks →

How to test your salt cell

The instant salt test (press Diagnostic 5 times) takes one minute and compares the cell reading with the store test.

Do the test →

Reset the salt average

The instant reading is good, but the display is still wrong? The 24-hour average is simply lagging behind.

See the steps →

Lights, display and power

No lights on, but the display works

The Power light must always be on. If it’s off, the board needs a repair. That costs much less than a new cell.

See the fix →

Nothing lights up (no display, no lights)

Often it’s the GFCI outlet. Check the outlet, then the yellow 20 A fuse, before blaming the board.

See the checks →

“PCB” shown on the display

This is a board problem, often intermittent at first. We can repair it.

See the fix →

The buttons or the Diagnostic button don’t respond

A simple cleaning often fixes it. Our videos show how to do it yourself.

See the videos →

Pro Logic, Aqua Logic, Aqua Rite PRO and OmniLogic

“No Cell Power” shown

Check the yellow 20 A fuse. If it’s good, or if it blows again, the main board needs a repair.

See the fix →

“COMMUNICATION ERROR” shown

Unplug the accessories to find out if the error comes from an accessory, the main board or the display.

See the steps →

Other problems

No Flow light on

It’s usually the flow sensor, not the board. The guide shows you how to test the sensor out of the pipe.

See the fix →

HOT or COLD shown

Compare the temperature shown with the pool. With the cell unplugged, the board must show 77 °F or 25 °C: if not, the board reads wrong.

See the fix →

Too much chlorine in the pool

Press Diagnostic 4 times: the value ending with P must match the dial. If not, the board needs a repair.

See the fix →

Inspect Cell light flashing alone

This is not a fault: it’s a 500-hour reminder. Inspect the cell, then hold Diagnostic a few seconds to turn the light off.

Helpful videos

Chlorine production calculator

How much chlorine does your system make with your setting? Pick the cell, the percentage and the pump hours: the result shows in grams, pounds and ppm.

Worn cell: we don’t repair cells

We don’t test or repair salt cells. We refer you to Pool Cell Repair (Saint-Jean-sur-Richelieu, Quebec), who replace the plates, the heart of the cell, for a fraction of the price of a new one. Contact them directly.

Does your board need a repair?

We repair original Hayward boards within 1 to 2 business days after we receive them, with a 1-year warranty. By mail (Canada, USA and other countries) or by appointment in Mont-Saint-Hilaire, Quebec.

Questions? Call us at 438 448-0782.

Frequently asked questions

How do I know if my salt cell is working?

Have your water tested at a pool store, then do the instant salt test: switch to OFF then back to AUTO, then press Diagnostic 5 times. If the instant salt is far from the store test and the cell type is set correctly, the cell is almost always at the end of its life.

How do I reset my Hayward salt system?

The “reset” that fixes a lagging salt display is the salt average reset: show the instant salt (press Diagnostic 5 times), then slide the switch to SUPER CHLORINATE and right back to AUTO. Watch the video.

Why is the salt shown different from the store test?

A gap of a few hundred ppm (up to 500) is normal. Beyond that, check that the system is set for your cell (T-5, T-9, T-15…), then do the instant salt test. Store tests are sometimes off by up to 1000 ppm: if in doubt, have the water tested at a second store.

My cell is only three years old. Can it be worn out?

Yes. A cell lasts about 10,000 hours of operation, and it wears faster if the percentage is set too high. Check the serial number on the sticker: on an original Hayward cell, it starts with 1E or 3E followed by the year (3E21 = 2021). It’s often older than you think.

Do you repair salt cells?

No. For a cell, contact Pool Cell Repair. We repair the original electronic boards: Aqua Rite, Aqua Trol, Aqua Rite PRO, Pro Logic, Aqua Logic, OmniLogic and OmniPL.