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-   -   Furnace and air vent problems (http://www.diychatroom.com/f17/furnace-air-vent-problems-73708/)

dsd 06-14-2010 10:18 PM

Furnace and air vent problems
 
ive googled and searched this site.. and havent managed to find an answer to my problems.

first off this is my system

Carrier 58GFA105 - 112 (13113)
Lennox cx34 - 308 - 6f - 2
Honywell Visionpro iaq
Lennox air conditioning fan on side of house!

I'm not getting any air out of my vents whether it is hot or cold.

I've checked the blower motor it runs... the fan outside switches on and off depending on if i select heat or cool.. the auto functions works.

The display on the honeywell works... checked the engineer settings and no errors.

put on heat and the furnace fires up (the burners come on).. the outlet pipe that goes to the vents heats up.. and when cool is on it cold!

i've opened one of the covers in the ducting in the furnace room for both incoming and outgoing air but nothing felt!

everything appears to be working.. but it seems like some kind of blockage between the fan and where the outlet/inlet pipes are!?

filters been changed... and cleaned out in the last week.. tried everything cant work out what going on with it!

Marty S. 06-15-2010 07:32 AM

Sounds like your indoor coil needs cleaned.

beenthere 06-15-2010 07:55 AM

Is the evap coil dirty. Look on the side/end of it that the blower blows the air into.

biggles 06-15-2010 08:28 AM

fan only running..remove the access panel (should pull) to view the supply fan... on the furnace you should be sucking air in over your shoulders looking in at the fan motor.if not...squirrel fins could be rounded off with dirt.if it does suck air the return is resticted insulation dropped down?..damper in the run from the house.put the access panel 1/2 way back on the fan and see if you have discharge air up in the rooms


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