Start with the product and the task.

Choose the product before using model-specific instructions or documents.

No A1 or H1 document file is connected in this independent Demo. Add verified product-linked files with language, version, revision and date metadata.

Installation guidance is not reproduced here because approved model-specific instructions and diagrams were not supplied to this Demo.

Begin with the product model, exact symptom, controller message and operating condition. A diagnostic workflow is not connected in this MVP.

No error-code table is published here without an approved model-specific source document.

Confirm the product model and revision before identifying a compatible part. No parts inventory or purchase route is connected.

A complete warranty policy, coverage terms and claim workflow are not connected. Confirm the terms shown with the actual purchase before relying on coverage.

Describe the product and issue so the request can be prepared for the appropriate support path.

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