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What is the procedure for returning a defective product (RMA)?

If you encounter a technical issue, please contact our support team to initiate a Return Material Authorization (RMA) process. We will first attempt to troubleshoot remotely via video call or technical analysis. If a return is necessary for inspection, we will provide shipping instructions.

Our goal is to minimize your downtime.

  1. Report: Send a detailed description of the failure, including photos of the installation and operating conditions, to our engineering team.
  2. Diagnosis: Our engineers will analyze if the issue is installation-related or a product defect.
  3. Return: If a factory inspection is required, we will issue an RMA number.
  4. Resolution: For confirmed manufacturing defects within the warranty period, HYSF covers the repair/replacement costs and return shipping.
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John Zhang

(CEO & Lead Engineer)
Email: [email protected]
With over 15 years of expertise in subsea interconnect technology, I lead HYSF's R&D team in designing high-pressure (60MPa) solutions. My focus is on ensuring zero-leakage reliability for ROVs, AUVs, and offshore instrumentation. I personally oversee the validation of our custom connector prototypes.

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Whether you need a quick quote for standard connectors or a complex custom cable assembly, our engineering team is ready to assist. Expect a technical response within 12 hours.

John Zhang

CEO

Jason Liu
Kevin Wang
Cindy Chen
Lily Li
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