Pressure Switch Question


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Old 01-29-14, 06:20 PM
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Pressure Switch Question

I have been having issues with my pressure switch opening up when the furnace is running. I suspect it is either windy conditions causing a back draft or ice in the intake. We have been having extremely cold weather with wind.

My pressure switch has 2 hoses, one goes to the inducer motor and the other goes to the fire box next to the intake pipe. What is the purpose of the second hose?

If I disconnect the hose going to the firebox could this help if it is the wind causing a backdraft?
 
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Old 01-29-14, 06:26 PM
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The quick answer is no...... you can't run the furnace without both lines connected.

A make and model of your furnace would be needed for an accurate answer.
You'll find the model number on a tag on the side of the furnace near the burner area.
 
 

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