61026 AERCO Boiler and Water Heater O2 SENSOR

61026 AERCO Boiler and Water Heater O2 SENSOR

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AERCO 61026 is the OEM O₂ (oxygen) sensor used in AERCO boilers and water heaters. It is a critical combustion‑trim component that monitors flue‑gas oxygen levels and feeds real‑time data to the control system so the burner can maintain the correct air‑fuel ratio.

The grounded sources all agree on its identity, function, and application.

🔧 Core Identity & Function

Part Number: 61026 Component: Oxygen (O₂) Sensor OEM: AERCO

This sensor continuously measures oxygen concentration in exhaust gases, allowing the boiler’s combustion controller to adjust fuel and air to maintain optimal efficiency and low emissions.

• Ensures precise combustion control

• Reduces fuel consumption

• Minimizes NOx/CO emissions

• Prevents soot buildup and unstable flame conditions

📐 Technical Characteristics

• Measured parameter: Flue‑gas oxygen level

• Sensor type: High‑temperature O₂ cell

• Application: AERCO commercial boilers & water heaters

• Function: Supports combustion trim and air‑fuel ratio optimization

Applications

Used in:

• AERCO Benchmark boilers

• AERCO Innovation water heaters

• Any AERCO system with combustion‑trim control

Typical replacement scenarios:

• Fluctuating O₂ readings

• “Oxygen Sensor Fault” codes

• Increased fuel usage

• Poor combustion efficiency

AERCO 61026 O₂ Sensor — OEM oxygen sensor for AERCO boilers and water heaters. Provides real‑time flue‑gas oxygen measurement for precise combustion control, improved fuel efficiency, reduced emissions, and stable burner performance. Essential for maintaining proper air‑fuel ratio and preventing soot buildup.