Life Any Hvac techs out there - Page 3

**J Diddy** · 02-01-2011, 02:35 PM

Is it possible that snow build up in the exhaust pipe going through the roof could prevent the inducer motor from activating thereby preventing my heater from coming on?

Over-Head · 02-01-2011, 10:37 PM

Quote:

Originally Posted by MotherLover

Like I said 3 feet of snow on a flat trailer roof..

I didn't know it was snowing in Oakland???

**J Diddy** · 02-01-2011, 10:43 PM

Quote:

Originally Posted by Hog Farmer

For some people carbon monoxide can be a good thing.

It has done wonders for you.

**J Diddy** · 02-01-2011, 10:47 PM

Quote:

Originally Posted by Over-Head

I didn't know it was snowing in Oakland???

Now come on, I didn't say someone stole my trailer.

Over-Head · 02-01-2011, 10:55 PM

Quote:

Originally Posted by MotherLover

Now come on, I didn't say someone stole my trailer.

Sorry sorry, sorry...didn;t mean to offend a Miami fan

**J Diddy** · 02-01-2011, 11:04 PM

Quote:

Originally Posted by Over-Head

Sorry sorry, sorry...didn;t mean to offend a Miami fan

Miami?

Over-Head · 02-01-2011, 11:15 PM

Quote:

Originally Posted by MotherLover

Miami?

Aint that where all the other trailers are parked in the USA?....Other than the ones in Tornado Alley

**J Diddy** · 02-01-2011, 11:19 PM

Quote:

Originally Posted by Over-Head

Aint that where all the other trailers are parked in the USA?....Other than the ones in Tornado Alley

never heard that, nor have I been to miami

However I saw an ungodly amount of trailers in GA

NCarlsCorner2 · 02-02-2011, 09:34 AM

Quote:

Originally Posted by jd1020

You should work on your HVAC, tbh. This isn't an uncommon problem when it comes to high effiency furnaces. If the exhaust is blocked the inducer fan is not going to be creating enough pressure to close the switch and continue with the order of operations. A heavy snow like today will cover the exhaust. This is why there are regulations for the height of the exhaust exiting a rooftop or sidewall.

You should do the same, a blocked flue will not keep the inducer motor from coming on, go back and read the original post he said would a block flue keep the inducer motor from coming on, the inducer motor will come on blocked or not it just won't close the pressure switch.

Is it possible that snow build up in the exhaust pipe going through the roof could prevent the inducer motor from activating thereby preventing my heater from coming on?

jd1020 · 02-02-2011, 11:57 AM

Quote:

Originally Posted by NCarlsCorner2

You should do the same, a blocked flue will not keep the inducer motor from coming on, go back and read the original post he said would a block flue keep the inducer motor from coming on, the inducer motor will come on blocked or not it just won't close the pressure switch.

Is it possible that snow build up in the exhaust pipe going through the roof could prevent the inducer motor from activating thereby preventing my heater from coming on?

I'm not commenting on what he said. The inducer will not continue to run. It will shut off after a bit then retry.

I'm commenting on your statement about how the exhaust should never get blocked, which is completely stupid.

NCarlsCorner2 · 02-02-2011, 02:23 PM

Quote:

Originally Posted by jd1020

I'm not commenting on what he said. The inducer will not continue to run. It will shut off after a bit then retry.

I'm commenting on your statement about how the exhaust should never get blocked, which is completely stupid.

If the furnace is running it shouldn't get blocked by snow, were not talking about PVC here to my knowledge and since he has a standing pilot chances are that he doesn't even have a inducer motor, I just tried to help the guy fix his furnace which is hard to do if you don't have very much info, but to question my HVAC knowledge is stupid on your part is what i'm saying.

jd1020 · 02-02-2011, 03:47 PM

Quote:

Originally Posted by NCarlsCorner2

If the furnace is running it shouldn't get blocked by snow, were not talking about PVC here to my knowledge and since he has a standing pilot chances are that he doesn't even have a inducer motor, I just tried to help the guy fix his furnace which is hard to do if you don't have very much info, but to question my HVAC knowledge is stupid on your part is what i'm saying.

Sure. I'll just take my HVAC field tech self elsewhere. I've delt with this certain issue plenty of times. It's one of the first things I look for on a no call for heat when the operation stops at the inducer.

Now you are saying because he has a standing pilot that he likely doesnt have an inducer fan??? Have you been in the field? There are >80% furnaces that have standing pilots. I would guess that he has an intermittent pilot before questioning if he has an inducer.

NCarlsCorner2 · 02-02-2011, 04:50 PM

Quote:

Originally Posted by jd1020

Sure. I'll just take my HVAC field tech self elsewhere. I've delt with this certain issue plenty of times. It's one of the first things I look for on a no call for heat when the operation stops at the inducer.

Now you are saying because he has a standing pilot that he likely doesnt have an inducer fan??? Have you been in the field? There are >80% furnaces that have standing pilots. I would guess that he has an intermittent pilot before questioning if he has an inducer.

I know everything your talking about, what i'm saying is with the lack of info that I had how can you judge my knowledge of HVAC, everything your saying is true but so is what i'm saying, I know all about Carrier 3 wire pilots with an inducer motor, I know all about PVC flue pipes icing up outside, I know all about birds getting down a chimney all the way to the inducer motor, yes I have worked in the field and have seen it all, but after I was trying to help him one of the things that he failed to say up front was the fact that it was a trailor, also how many houses have you ever had to get up on the roof to shovel snow away from the b-vent flue pipe.

jd1020 · 02-02-2011, 04:53 PM

Quote:

Originally Posted by NCarlsCorner2

I know everything your talking about, what i'm saying is with the lack of info that I had how can you judge my knowledge of HVAC, everything your saying is true but so is what i'm saying, I know all about Carrier 3 wire pilots with an inducer motor, I know all about PVC flue pipes icing up outside, I know all about birds getting down a chimney all the way to the inducer motor, yes I have worked in the field and have seen it all, but after I was trying to help him one of the things that he failed to say up front was the fact that it was a trailor, also how many houses have you ever had to get up on the roof to shovel snow away from the b-vent flue pipe.

Not many. It's generally ice build up on wall vented 90%'s. But then again, these 12''+ snow storms arent that common in the lower midwest.

NCarlsCorner2 · 02-02-2011, 04:57 PM

Quote:

Originally Posted by jd1020

Not many. It's generally ice build up on wall vented 90%'s. But then again, these 12''+ snow storms arent that common in the lower midwest.

I have never had to get up on a roof to shovel snow away from a flue with a running furnace, after the 12 inches of snow that we just got there isn't 12 inches of snow on my roof, now a flat trailor roof might be a different story, but I didn't have that info at first.

jd1020 · 02-02-2011, 05:01 PM

I've seen pretty heavy build up on <2-12 grade roofs.

02-01-2011, 02:35 PM
J Diddy Don't Be A Dick Join Date: Aug 2001 Location: Joplin Casino cash: $6757192	Any Hvac techs out there Is it possible that snow build up in the exhaust pipe going through the roof could prevent the inducer motor from activating thereby preventing my heater from coming on?
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02-02-2011, 05:01 PM	#45
jd1020 In Search of a Life Join Date: Nov 2010 Casino cash: $7702645	I've seen pretty heavy build up on <2-12 grade roofs.
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