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Is the switch bad
Technicians should replace these gaskets whenever the heat exchanger header is removed for inspection or if there are visible signs of weeping or calcification around the header flange
Flexible Orientation: Versatile hole patterns allow for internal or external duct mounting to accommodate tight spatial constraints
Whether used in industrial furnaces or boiler systems
Key Benefits Direct OEM Compatibility: Specifically designed to replace Modine 5H73598-2 and FP 12930 without bracket adjustments
Carrier HH19ZA145 Limit Switch 322838-753 Is the switch badThe Carrier HH19ZA145 Limit Switch is a critical safety component designed for precise thermal monitoring in HVAC furnace systems and packaged units. As a high performance OEM replacement limit switch, this disc style sensor features a normally closed circuit that provides essential protection against heat exchanger overheating. Engineered to open at 145F and close at 105F, this automatic reset limit switch ensures your heating equipment stays within