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    • Home
    • Resources
      • Forms
      • Lineset Sizing Form
      • Premium ECM Support
      • Refrigerant Cycle Forms
      • Res AC/HP Sound Checklist
      • Report an Issue
      • Service Tip Letters
      • SSE Board Resources
      • Submit an eTicket
      • Technical Resource Docs
      • Videos
      • York Service Letters
      • Warranty Voucher
    • Training
      • Overview
      • Meet the Trainers
      • 2025 Spring Training
      • On-Demand Training
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  • Home
  • Resources
    • Forms
    • Lineset Sizing Form
    • Premium ECM Support
    • Refrigerant Cycle Forms
    • Res AC/HP Sound Checklist
    • Report an Issue
    • Service Tip Letters
    • SSE Board Resources
    • Submit an eTicket
    • Technical Resource Docs
    • Videos
    • York Service Letters
    • Warranty Voucher
  • Training
    • Overview
    • Meet the Trainers
    • 2025 Spring Training
    • On-Demand Training
  • CCE Documents
  • Assisted Start-Ups
    • Commercial Start Up
    • VRF Start Up
  • York Tech Support Blog

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YS (York Service) Letters

YS-006-2021 modulating gas furnace YFD (pdf)Download
YS-001-2022 factory installed expansion valve YFD (pdf)Download
YS-002-22 - high pressure switch failures YFD (pdf)Download
YS-004-22 ec&cc sensor failures YFD (pdf)Download

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