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Jandy AquaPure Error 172

Flow sensor needs service or is unplugged. Call a pro.

The flow sensor needs service or is unplugged. Jandy's corrective action is to contact a pool professional.

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Full answer & models

Jandy AquaPure service code 172 means a flow sensor service condition or the flow sensor is unplugged. The manual's corrective action is to contact a pool professional; several Level 2 sensor faults (180, 181, 183 to 186) also generate 172.

Applies to: APUREMPLC700PLC1400AquaPure 700AquaPure 1400
Also searched as: AquaPure 172, flow sensor service, flow sensor unplugged

Power off before touching connections.
Why
Turn off power before touching any connection. Do not open the power center.

What 172 means

Flow sensor needs service or is unplugged. Call a pro.

More detail
Per Jandy manual H0325600, Section 7.2, code 172 indicates a flow sensor service condition or an unplugged flow sensor. Corrective action: contact a pool professional. Section 7.3 notes that Level 2 codes 180 (heated sensor element not heating), 181 (flow sensor temperature sensor failure), and 183 to 186 (flow/salinity sensor temperature probe errors) all generate 172.

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Fix it step by step

Step 1 of 1

  1. Contact a pool professional

    • Decision
    • None
    • Pro decision

    Jandy's corrective action for this code is to contact a pool professional.

    More detail

    Contact a pool professional.

    This code points to a condition the manual does not list owner repairs for. Record the code, your model, and what you have already checked, and have a qualified technician service the unit.

    Still showing 172?Still 172 → 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 172 after step 1? See the replacement part or call a pro.

Call a pro if…

  • Code 172 is shown (Jandy's listed action).
  • Your installer or technician can read Level 2 codes 180 to 186.

Part you'll likely need

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Only after the documented checks point to the cell.

Jandy replacement cell for AquaPure (R0475400 for 1400 models, R0475300 for 700 models)

Code 172 is a flow sensor condition, not a cell fault; do not buy a cell for this code.

Fits: AquaPure 700AquaPure 1400

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FAQ

What does AquaPure 172 mean?

Flow sensor service condition or flow sensor unplugged, per Jandy H0325600.

What causes 172?

The manual lists Level 2 codes 180, 181, and 183 to 186 as generating 172.

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.