Aqua-Hot 400-P02 control and winterization prep

Use the official Aqua-Hot AHE-400-P02 Use and Care Guide to capture model, controls, and winterization context before support contact.

Owner-safe checklist

Record the AHE-400-P02 model, control-panel state, heat and hot-water behavior, winterization status, fluid level shown by normal owner checks, and any displayed warning.
Save photos of the control panel, safe visible model label or paperwork, and the Aqua-Hot guide title.
Keep heating-equipment internals, fluid leaks, exhaust odor, and installed power components for Aqua-Hot support or qualified RV service; shut the unit down if safety is uncertain.