Aqua-Hot Fluid Level Capacitance Switch - ELX-800-003

The Aqua-Hot Fluid Level Capacitance Switch is a direct replacement part used in Aqua-Hot hydronic heating systems designed to monitor the heater's coolant (antifreeze) level and communicates with the system's control circuitry to detect low-fluid conditions. By providing reliable coolant level monitoring, it helps protect against overheating and potential damage to critical heating system components. Recommended OEM Replacement Aqua-Hot Fluid Level Sensor Field Replacement Kit - ELE-800-007-FRU Important Information Low Coolant Level Detection – Monitors antifreeze levels within the boiler tank and helps protect the heating system from operating under low-coolant conditions. Capacitance Sensor Design – Uses capacitance-based sensing technology to detect coolant levels without relying on a traditional mechanical float switch. Genuine OEM Replacement – Designed for proper fit, compatibility, and reliable performance in Aqua-Hot hydronic heating systems. Compatible Models Aqua-Hot AHE-400-D01 AHE-400-P01 AHE-450-DE2 AHE-450-DE4 AHE-450-DW3 AHE-525-D02 AHE-600-D03 AHE-675-D03 Help Me Find My Model Number