Spa Helpdesk Nederlands

E18

Lay-Z-Spa E18: power on the ground wire

E18 means electricity is detected from the ground wire. This wording is from the 2025 AirJet manual 303021379874 and the 2025 HydroJet manual 303021371869, for pump models S100202, S200202, S300202 and S400202. Spa names such as Paris or Miami are not in these manuals. A 2020 edition states the cold and hot alarms differently, so do not use this page for that edition.

Electricity is detected from the ground wire.

Models this page covers: S100202, S200202, S300202, S400202

Do this first

  1. Power

    Unplug and leave it unplugged

    Unplug the pump and leave it unplugged. The manual says to call an electrician immediately to find out whether power is present on the grounding connection. Do not open the pump.

  1. Settings

    Do not use an extension lead

    The safety section of the same manuals says not to use an extension cord, and to plug the spa directly into an earthed socket. Moving to an extension lead is not the fix for E18.

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

  • Call an electrician before anyone uses the spa. The manual says that if E18 continues, the plug should go to a socket with its own ground. Fitting that ground is electrician's work. Do not open the pump.

Questions

Can I test the ground wire with a screwdriver or a meter?

No. The 2025 manuals tell you to call an electrician to find out whether power is on the grounding connection. They do not give a DIY electrical test.

Manuals we checked