Aqua-Hot error code LOW LEVEL CUT-OFF
Boiler fluid level below safety threshold. Reporter has shut down all fans/pumps/heat sources.
What to check, and in what order, is in the app. The flow Aqua-Hot — Fluid Level Check & Refill Procedure walks this code step by step with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.
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- Aqua-Hot 400D Use & Care GuideAqua-Hot
- Aqua-Hot Heating Systems Service Manuals — aquahot.com
- Aqua-Hot Tech Support 800-685-4298 (Fort Lupton, CO)
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