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Old 12-08-2009, 11:14 AM   #1
dwm
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this morning i notice something wrong with my heater, so i think. i have a two flat with one furnace for the first floor and one for the second floor (both gas). when going down to the first floor i notice it was chilly.

thermostat said it was 65 but was set at 70. went to the basement and i notice that the blower was not kicking in like it has but seems to be stuck on the first stage (low speed)

any suggestion what to look or what could be wrong?

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Old 12-08-2009, 05:38 PM   #2
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after taking another look at the furnace i noticed a small piece of something. and it looks as it broke off something.

i also noticed a led light and it did a set of flashes.

i've added a link to a picture (sorry for the quality). anyone know where it might have broken off of?

i'm taking a guess that this is the problem...

photo
---------------------------
i think i have found my problem, off to check and see.

found:


Last edited by dwm; 12-08-2009 at 06:04 PM.
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Old 12-08-2009, 07:27 PM   #3
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Thats a flame sensor, not a thermocouple.

Don't use sand paper. As it will scare the flame sensor, and cause you to have to clean it far more often.
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Old 12-08-2009, 07:49 PM   #4
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Hard to tell by the picture but it looks more like a broken ignitor to me.
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Old 12-08-2009, 08:10 PM   #5
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That is the center from a hot surface ignitor (glow bar). Usually simple to change but as fragile as an egg.
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Old 12-08-2009, 11:20 PM   #6
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I was refering to the utube video.
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Old 12-10-2009, 06:12 PM   #7
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well i didn't have it. not sure what is wrong but i believe the machine is giving me a code 12. so far no luck searching the net for a code 12
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Old 12-10-2009, 07:00 PM   #8
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Code 12 usually means that it is receiving a heat call when the power was turned on to it.
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Old 12-10-2009, 07:35 PM   #9
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it fires up, stays lit and seems to be blowing out air. the air doesn't seam as warm as it should and i can tell by the other furnace that it isn't working the same
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Old 12-10-2009, 07:46 PM   #10
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Could be a problem with the orifices, a dirty vent on the gas valve.
Restriction in the vent system. etc.
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Old 12-10-2009, 08:24 PM   #11
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i started to smell something burning. went to the basement and notice that the fire was out but i didn't see anything burning. i turned it off for a few min then turn it back on. it fired up but only for a few min until itturned itself off. the blower never kicked in
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Old 12-10-2009, 08:27 PM   #12
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Blower motor, blower motor cap, furnace control board.
Could be any one of those.
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Old 12-11-2009, 05:17 PM   #13
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thanks all that responded. I don't know much about furnaces and it looks as it will stay that way for now that i called in a repairman.

the problem was the blower and the blower cap. 450 dollars bought me some piece and mind tonight.

thanks again

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