E17 displayed and unit reports resin tank sensor or level error

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Disconnected resin tank probe, Damaged sensor cable, Sensor fouled by iron or sediment, Failed sensor electronics

Safety first: Unplug the softener. Do not open pressurized resin tanks.

Locate sensor: Some Waterguy models have a sensor on the resin tank dome or side. Inspect for physical damage.
Clean sensor surface: Wipe off any iron slime or sediment buildup with a damp cloth.
Check cable: Follow the cable to the control head and ensure it is intact and firmly connected.
Reset: Restore power and clear the error. Monitor operation.

If E17 persists, the resin tank sensor or control board input may be defective and require replacement.

Medium 3/5

Waterguy Resin Tank Sensor

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