Spa Helpdesk

E01

Coleman E01: flow sensors trip on their own

E01 means the water flow sensors work without you pressing the filter or heat button. This line is from Coleman owner's manual 90427E, document 303021298886, for pumps S100105 and S100205. It is not the 2025 European Lay-Z-Spa chart.

The water flow sensors work without pressing the filter or heat button.

Models this page covers: S100105, S100205

Do this first

  1. Power

    Unplug, tap once, plug back in

    Unplug gently. The manual says to strike the side of the pump, not violently, then plug it back in, so the sensor flags can fall. Do not open the housing.

  1. Display

    Stop if E01 is still there

    If E01 remains, the manual says the water flow sensors are broken and sends you to the Bestway USA support page. Leave the pump unplugged.

When to call a technician

Call a technician now if

  • The breaker or the RCD trips when the pump is plugged in.
  • You smell burning, see melted plastic, or the water is too hot to touch.
  • The code comes back after one reset.

Also call for these, from the manual

  • Contact Bestway USA if E01 remains after one tap and a restart. The manual gives no home repair for a broken flow sensor. Do not open the pump.

Questions

Is E01 the same fault as E02?

No. In manual 90427E, E01 is the flow sensors working when filter and heat are off. E02 is the sensors not detecting water flow while filtering or heating is running.

Manuals we checked