Ensure safe and efficient furnace operation with the Lennox 87H91 (R20001103) HI Limit Control. This high-quality OEM replacement part is designed to monitor and regulate internal furnace temperatures, automatically shutting down the system if temperatures exceed safe limits. Engineered to meet Lennox’s strict standards, the 87H91 helps protect your equipment from overheating and extends the life of your HVAC system.

Compatible with a variety of Lennox models, this limit control switch is a reliable solution for maintaining optimal furnace safety and performance. Whether you're a contractor or a homeowner performing repairs, the 87H91 is a trusted component for dependable protection.

Features:

Genuine Lennox OEM replacement part

High-limit temperature safety shutoff

Promotes furnace longevity and efficiency

Part Number: 87H91 / R20001103

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