Upgraded 20162904 Primary Limit Switch For Goodman Furnace Replacement L40 524 150 Degree And 110 Degree Temperature Control Durable And Precise Fits Goodman Furnaces And Related ACEC ACSH ACVC Series Models DIY Friendly Plug And Play
✔️ Replaces L40-524, compatible with ACEC/ACS/ACVC series, single unit
This primary limit switch is a replacement component for Goodman furnaces, designed to safeguard heating systems by opening at 150° and closing at 110°, preventing overheating. It fits ACEC960803BNAA, ACEC960803BNAB, ACSH960453BXAA, ACSH960703BXAA, ACSH960704CXAA, ACVC950714CXAA, ACVC950714CXAB and related models. DIY-friendly with a perforated mounting base for quick swap.
✅ Compatibility: 20162904 primary limit switch fits Goodman furnaces and ACEC/ACS/ACVC series (replaces L40-524)
✅ Precision and safety: opens at 150° and closes at 110° to prevent overheating
✅ Durable construction: insulating shell and high-strength housing for long life
✅ Easy plug-and-play install: perforated mounting base for quick setup
✅ Support: 24-hour online service for fast help
💡 What is a primary limit switch used for in HVAC systems? - The primary limit switch protects heat exchangers by monitoring furnace temperature and triggering shutdown when overheated. - It helps prevent damage and improves safety by opening the circuit at a set temperature. - Handy DIY installation with common mounting setups makes replacement easier. - Compatible with ACEC/ACS/ACVC series models.