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Old 12-01-2011, 05:25 PM   #1
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York Diamond 80 Furnace won't start

Have 3 red blinking lights. Have replaced hot surface ignitor and installed new pressure switch but no luck. When I suck air from the pressure switch, the ignitor starts to glow but burners don't light.

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Old 12-01-2011, 06:30 PM   #2
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York Diamond 80 Furnace won't start

Inducer working? That's the motor that exhausts the burnt gas fumes (co2) out the metal exhaust pipe. Should be the first thing to come on in call for heat.

That is what sucks the pressure switch closed..when you aren't, that is.

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