Water pump runs but no water flows over the evaporator.

Safety: Unplug and drain the unit before disassembly.

• Inspect distribution tube: Remove the tube above the evaporator and clean all outlet holes with a toothpick or small brush.
• Check hoses: Ensure hoses are not kinked or pinched by panels.
• Descale: Soak the tube and hoses in a vinegar solution to dissolve scale, then rinse thoroughly.
• Reassemble and prime: Reinstall components, refill reservoir, and tilt the unit slightly to help remove air from the lines.