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Jandy AquaPure Error 145

Salt above 4.0 gpl. Dilute to 3.0 to 3.5 gpl.

Salt is above 4,000 ppm. Partially drain and refill with fresh water until it reads 3,000 to 3,500 ppm.

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Full answer & models

Jandy AquaPure service code 145 means high salinity, above 4.0 gpl. Backwash if you have a DE filter, then partially drain and refill with fresh water until salt returns to 3.0 to 3.5 gpl.

Applies to: APUREMPLC700PLC1400AquaPure 700AquaPure 1400
Also searched as: AquaPure 145, high salt code, AquaPure high salinity

Don't drain completely without pro advice.
Why
Follow your pool surface manufacturer's guidance on draining. Never drain a pool completely without professional advice.

What 145 means

Salt above 4.0 gpl. Dilute to 3.0 to 3.5 gpl.

More detail
Per Jandy manual H0325600, Section 7.2, code 145 indicates salinity above 4.0 gpl. Corrective action: backwash the filter if a DE filter is installed; partially drain the pool and dilute with fresh water until salinity returns to 3.0 to 3.5 gpl. Section 4.7 warns that salt above 4.0 gpl may damage the power center and above 6.0 gpl may corrode pool fixtures.

5-minute checks

Fix it step by step

Step 1 of 3

  1. Confirm salt level

    • 5 min
    • Salt test strips or NaCl meter
    • DIY

    Verify the high reading before draining.

    More detail

    Confirm salt independently.

    Test at the equipment location; temperature affects the readout.

  2. Backwash a DE filter

    • 15 min
    • None
    • DIY

    Jandy lists backwashing first if a DE filter is installed.

    More detail

    Backwash a DE filter.

    Follow your filter manual's backwash procedure.

  3. Partially drain and dilute

    • Hours
    • Submersible pump or filter waste line, Garden hose
    • Caution

    Drain part of the water and refill with fresh water until salt is 3.0 to 3.5 gpl.

    More detail

    Partially drain and dilute.

    Retest after circulating. Repeat in stages as needed.

    Still showing 145?Still 145 → see the partNeed a pro → call a pro

Code cleared. Nice work.

Recheck chlorine in a week. Pros do the same.

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Fixed after any step? Recheck chlorine in a week. Still 145 after step 3? See the replacement part or call a pro.

Call a pro if…

  • You are unsure how much water your pool surface can safely lose.
  • Salt reads high on the unit but normal on an independent test.

Part you'll likely need

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An independent salt reading is the first check.

Salt test strips or a handheld salt meter calibrated for NaCl

Retesting between drain-and-refill stages tells you when to stop.

Fits: Any salt chlorinator pool

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FAQ

What salt level triggers 145?

Above 4.0 gpl (4,000 ppm), per Jandy H0325600.

Is high salt harmful?

The manual says above 4.0 gpl may damage the power center and above 6.0 gpl may corrode pool fixtures.

Where is this documented?

Jandy AquaPure/PureLink Power Center and Cell Kit, Installation and Operation Manual (H0325600), Section 7.2 Service Codes, Section 4.7 Salt, Section 6.3 Electrolytic Cell Cleaning.

Source: Jandy AquaPure/PureLink Power Center and Cell Kit, Installation and Operation Manual (H0325600), Section 7.2 Service Codes, Section 4.7 Salt, Section 6.3 Electrolytic Cell Cleaning. Written by a Florida pool service owner. Updated 2026-10-15.