furnace wil not come on


Old 09-25-12, 03:43 PM
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Question furnace wil not come on

i have a carrier gas furnace it wil not turn it just keeps clicking the indicator light blink is 23 does anyone know that code is
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Old 09-25-12, 04:16 PM
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The Carrier 2-3 diagnostic code indicates that the pressure switch isn't closing.

98% of the time the pressure switch is fine, with the problem being that something in the furnace is plugged up and preventing air from properly flowing through the furnace for combustion and out the venting system.
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