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Service and Support

Four-fold guarantee and six major systems, worry-free after-sales service

Pre-sale service

  • Free troubleshooting

  • Free site visit

  • Free design

  • Free construction drawings

  • Free on-site experience

Sales service
  • Project supervision

  • Project acceptance

  • Commissioning training

After-sales service
  • 400

  • Quick response mechanism

  • Full network coverage

  • Defuyun

  • Spring and Autumn Inspection

  • Guarantee service

GF
  • Technical talks
  • Customized logistics
  • Fault monitoring
  • Engineering design
  • Installation Instructions
  • One-click repair
  • Power on detection
  • Product consultation
  • Maintenance traceability

Add：Leshang Pioneer Park, Yueqing Bay Port Area, Yueqing City, Zhejiang Province

Service Hotline：400-100-1661

Fax：+86-577-62128565

© 2022 Zhejiang Defu New Energy Technology Co., Ltd. Defu. All Right Reserved.Zhejiang ICP No. 19009264
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