Armstrong Furnace R100811-07 Roll Out Switch

Description

The Armstrong Furnace R100811-07 Roll Out Switch is an OEM safety component engineered to protect your furnace from the hazards of flame rollout. When burner flames extend beyond their intended combustion area — a condition that can result from blocked heat exchangers, restricted flue passages, or inadequate combustion air — this switch detects the abnormal heat and immediately interrupts furnace operation to prevent equipment damage and potential fire hazards.

How It Works

Mounted near the burner assembly, the roll out switch monitors the temperature in the burner compartment. If flames roll out of the burner box and raise the surrounding temperature beyond a safe threshold, the switch opens the control circuit, shutting down the furnace and alerting the homeowner or technician that service is required. This fail-safe design helps safeguard the heat exchanger, wiring, and surrounding structure.

Key Features

• OEM Armstrong Furnace replacement part (SKU: R100811-07)
• Designed as a direct-fit replacement for compatible Armstrong furnace models
• Provides critical protection against flame rollout conditions
• Interrupts furnace operation upon detecting unsafe burner compartment temperatures
• Helps prevent heat exchanger damage, wiring failures, and fire hazards
• Supports proper furnace diagnostics — a tripped switch signals the need for professional inspection

Application

• Compatible with select Armstrong Furnace residential heating systems
• Intended for use by qualified HVAC technicians during furnace maintenance or repair
• Verify compatibility with your specific Armstrong furnace model before installation

Installation Notes

Roll out switch replacement should always be accompanied by a thorough inspection of the heat exchanger, flue venting, and combustion air supply. A tripped roll out switch is a symptom of an underlying issue — simply resetting or replacing the switch without diagnosing the root cause may result in repeated failures or unsafe operating conditions. Always follow Armstrong’s service documentation and applicable safety codes.