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124363 AERCO Boiler LOW WATER CUTOFF BOARD

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124363 AERCO Boiler LOW WATER CUTOFF BOARD

Normal Stocking Part in our warehouse 

Replaces 124363-1 

AERCO 124363 is the OEM Low Water Cutoff (LWCO) Board, and grounded sources confirm it is a critical safety control module used in AERCO Benchmark boilers and Innovation water heaters. It prevents catastrophic dry‑fire conditions by monitoring water level and shutting down the burner when water drops below a safe threshold.

AERCO 124363 Low Water Cutoff Board — OEM safety control board for AERCO Benchmark and Innovation systems. Provides continuous water‑level monitoring and automatic burner shutdown to prevent dry‑fire conditions and protect the heat exchanger. Engineered for precise communication with AERCO control logic and reliable commercial hydronic performance.

🔧 Core Identity & Function

Part Number: 124363 Component: Low Water Cutoff Board OEM: AERCO

This board performs continuous water‑level monitoring inside the heat exchanger. If water level becomes unsafe, it interrupts the burner circuit, preventing overheating, thermal stress, and heat‑exchanger failure.

Technical Role

  • Monitors water level via electronic sensing

  • Communicates with AERCO’s internal management system

  • Prevents dry‑fire conditions

  • Supports Benchmark & Innovation series units

Applications

Used in:

  • AERCO Benchmark boilers

  • AERCO Innovation water heaters

  • Commercial hydronic systems requiring strict low‑water protection

Typical replacement scenarios:

  • Persistent “Low Water” error codes

  • Burner failing to ignite during safety checks

  • Faulty or intermittent water‑level readings