After sales service

Knowhow Technology Co.,Limited.

  • Before You Submit

  • · Please prepare your order number, model name, and photos/videos of the issue to speed up processing.

    · We typically reply within 24 working hours.

    · Filters, hoses and consumables are not covered under warranty.

    · Warranty is valid for manufacturing defects within the warranty period.

    · For returns or replacements due to quality issues, please contact us within 7 days of delivery.

  • After You Submit

  • 1.We receive your support ticket.

    2.Our technician diagnoses the problem.

    3.We provide troubleshooting, repair, replacement or return solution.

    4.We follow up until your issue is fully resolved.

    We are committed to providing stable long-term after-sales support and spare parts supply for all our customers.

Service and Repair
Give us a few details and we’ll offer the best solution.

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