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-   -   Please help, furnace not working!!!!!! (http://www.diychatroom.com/f17/please-help-furnace-not-working-100159/)

Sfeyelectric 03-31-2011 01:23 PM

Please help, furnace not working!!!!!!
 
My furnace quit working this morning, It reads pressure switch stuck open! What can i do to fix this?

JJboy 03-31-2011 01:49 PM

Check if there is any obstruction in exhaust line . Also check pressure switch tube for any obstruction. Get a mutimeter and check if the pressure switch sensor is ok.

yuri 03-31-2011 03:23 PM

Post the make model and serial #

Sfeyelectric 03-31-2011 03:31 PM

Quote:

Originally Posted by yuri (Post 620749)
Post the make model and serial #

luxaire
Model- GM9S100C16UP11K
serial- WOK7289700

yuri 03-31-2011 06:17 PM

Remove the front panel and start the furnace. Does the ventor fan that pushes the exhaust out the plastic vent pipes run? Check the intake and exhaust pipes outside for blockage. Bags or other debris can get sucked in the intake.

Sfeyelectric 03-31-2011 06:26 PM

Quote:

Originally Posted by yuri (Post 620869)
Remove the front panel and start the furnace. Does the ventor fan that pushes the exhaust out the plastic vent pipes run? Check the intake and exhaust pipes outside for blockage. Bags or other debris can get sucked in the intake.

It does run and than ends up shutting off. Where would the intake be located? I checked the exhaust already!

heatycooly 03-31-2011 06:34 PM

Sounds like a plugged drain to me blow out condensate line with compressed air

yuri 03-31-2011 07:20 PM

If it is a 2 pipe system then it should have an intake pipe also going outdoors. One pipe system takes the air from the basement. Carefully remove the hose from the pressure switch and poke a wire thru the port on the plastic collector box where it attaches. DO NOT suck or blow on the pressure switch or it gets damaged. Blow thru the hose in case it has water in it. Check the drain from the furnace and the condensate trap. May have to remove it and flush it with hot water and bleach. Beenthere is a York/Luxaire tech and may know that furnace better than me.


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