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Common indicators include a humming motor that fails to start
It is fully compatible with both the standard 800M4 and the lead-free LF800M4QT models
providing a secure
Constructed from a heat-resistant manifold compound
or a failing blower motor rather than a faulty switch
Trane SWT1277 Limit Switch Common indicators include a hummingThe Trane SWT1277 Limit Switch is a critical safety component designed for precise thermal regulation in Trane and American Standard HVAC furnaces. As a high limit automatic reset switch, it monitors the supply air and heat exchanger temperatures to prevent hazardous overheating. This genuine OEM furnace limit switch features a 3 inch insertion length, ensuring accurate sensing deep within the plenum or blower housing. Operating on a normally closed