Article ID: 552
Last updated: 6 Dec, 2021
York Gas Furnace: YP9C Re: Flashing Code 11 This indicates that a primary limit switch has opened and has remained open for more than five minutes. This condition is usually associated with an air circulation failure. ► Code 11 is a Hard-Lockout which requires cycling 24VAC power to the furnace board to reset (or cycling 115V power).
CHECKOUT: 1. Check Blower Motor/Wheel
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Article ID: 552
Last updated: 6 Dec, 2021
Revision: 4
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