AutoPilot Pool Pilot Soft Touch ST-220 Troubleshooting Guide

Table of Contents

    Service Light Decoding (Red Flashes)

    Signal Meaning Chlorine Status Action
    Single Flash No Flow Detected OFF

    The unit believes that there is not sufficient water flow to the sensor to activate the salt cell.

    Is what flow returning to the pool as normal?

    Is the pump on? For variable speed pumps try increasing the water flow.

    Check and clean the manifold strainer screen on the AutoPilot plumbing manifold for debris.

    Double Flash

    or 

    Triple
    Flash

    		 System Warning Possibly ON, but with Diminished Output The unit is detecting low amps. 

    Check the salt cell for any visible build up and clean if needed.

    If the cleaning the cell doesn't resolve the issue, run the testing instructions below and contact SaltPoolGuys.com support with the results.
    Quadruple Flash Water Temperature Issue Possibly ON, but with Diminished Output Contact SaltPoolGuy.com support for troubleshooting assistance.

    Salt Level Indicators

    • Low Salt Light: Salt is below 2400 ppm. Adjust salt to 3000 ppm for optimal performance. Manually test the salt at a pool store or with test strips before proceeding. 

    • Add Salt Light: Salt is below 2000 ppm. The unit has stopped producing chlorine until salt is added. Manually test the salt at a pool store or with test strips before proceeding. 

    Step-by-Step: How to Run a Diagnostic Test

    If you have a Double or Triple red flash, our technicians at SaltPoolGuys.com need specific data to help you. Follow these steps to enter Diagnostic Mode:

    1. Activate Boost: Press the Boost button and wait 60 seconds for the system to ramp up.

    2. Enter Test Mode: Press and hold BOTH the Up and Down arrows for 5 seconds until the output lights go out.

    3. Read the Flashes: The lights will now flash in a specific sequence to give you four values. Write these down.

    How to read the values:

    • 1st Value (Salt): 2nd light flashes (1000s) / 3rd light flashes (100s). Example: 2 flashes / 8 flashes = 2,800 PPM.

    • 2nd Value (Temp): Top light (100s) / 2nd light (10s) / 3rd light (1s). Example: 8 flashes / 6 flashes = 86°F.

    • 3rd Value (Voltage): 2nd light (10s) / 3rd light (1s). Example: 2 flashes / 8 flashes = 28 Volts.

    • 4th Value (Amps): 2nd light (1s) / 3rd light (0.1s). Example: 5 flashes / 5 flashes = 5.5 Amps.

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