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While the CTR2577 is a 3-pole unit
Check your chimney for bird nests or debris
Thermal Resilience: Built to operate in high ambient temperatures typical of mechanical rooms and enclosed refrigeration housings
Corrosion-Resistant Alloy: The 1435 aluminum alloy is specifically chosen for its longevity in environments exposed to combustion byproducts
Copeland Comfort Control (White Rodgers) 768A-843 Ignitor While the CTR2577 is aUpgrade your thermal system reliability with the Copeland Comfort Control (White Rodgers) 768A 843 Silicon Nitride 80V Hot Surface Ignitor. This OEM replacement nitride ignitor is engineered specifically for residential furnaces utilizing 80 volt ignition systems and serves as the direct replacement for 768A 143 and Thermo Products components. Unlike fragile silicon carbide alternatives, this nitride hot surface ignitor features superior mechanical