E13 displayed; unit locks out and will not restart until power is cycled

Critical safety: An earth leakage fault can be lethal. If in doubt, disconnect the unit and call a professional.

• Inspect for moisture: With power off, remove the cover and look for water leaks, condensation, or damp insulation. Repair leaks and dry the unit thoroughly.
• Check element insulation: Use a megohmmeter (insulation tester) to test resistance between each element terminal and earth. Low resistance indicates a leaking element that must be replaced.
• Examine wiring: Look for nicks or crushed sections in internal wiring that could contact the metal chassis. Repair or replace as needed.

Do not bypass safety: Never bypass RCD/GFCI protection or earth connections. Replace faulty components and have the system tested by a qualified electrician.