Furnace blower not turning on when it should

Posted by Jim Dandy on February 4, 2009, 10:45 pm

> On Wed, 4 Feb 2009 09:14:34 -0800 (PST), ATJaguarX

>>> > > Maybe replace the logic control board. Fan-on timer/relay possibly
>>> > > shot
>>> > > on the board.- Hide quoted text -
>>> > > - Show quoted text -
>>> > It happened again... woke up this morning, thermostat set to 70, temp
>>> > was 66. I heard nothing this time (no gas, nothing). Flip the switch
>>> > from "Heat" to "Off" and back to "Heat" again and voila... furnace
>>> > running just fine.
>>> > If it was a relay, would it be flaking out sometimes (even though it
>>> > appears to be getting worse)?
>>> > *********************************************************
>>> > Dude. Notwithstanding Stormy-like comments that you need a new board,
>>> > what you REALLY need is someone to come over and see what the problem
>>> > is.
>>> > End of story, period dot.
>>> I have someone on the way right now... he should be at my house in the
>>> next 30 minutes. I just don't want to be blind sided since I'm not a
>>> HVAC guy. I don't want to come across completely ignorant. If I can
>>> get some ideas from this board on what it could be, it might help.
>>> UPDATE:
>>> it appears that the only way to get the furnace to turn on is to
>>> manually set it to "off" and back to "heat" again. it has not turned
>>> on by itself once today.
>>> I am going to be pissed if this is a big expense... the damn unit is
>>> only 18 months old. Is York a horrible product?
>>> I dunno... you tell
>>> mehttp://www.consumerreports.org/cro/appliances/heating-cooling-and-air...-
>>> Hide quoted text -
>>> - Show quoted text -

>>HVAC guy thinks its the flame sensor. He's going to do a cleaning and
>>see where its at.

> Thinks?! Oh great. Sounds like you paid for the best tech you could
> find.
> Oh, by the way. You mentioned you were going to be pissed if this is a
> big expense.
> How pissed will you be when this guy that "Thinks" and you come home
> from work to a freezing house with bursted pipes? Oh Joy.
> Bubba

Yeah, it isn't Rocket Science. Just replace a handful of parts today. If
that doesn't fix it, come back next week and replace some more parts.

Remember, he needs some more ideas on what might work so he isn't
blindsided...

Posted by Alexander on February 5, 2009, 1:06 am

Jim Dandy wrote:

>> On Wed, 4 Feb 2009 09:14:34 -0800 (PST), ATJaguarX

>>>>>> Maybe replace the logic control board. Fan-on timer/relay possibly
>>>>>> shot
>>>>>> on the board.- Hide quoted text -
>>>>>> - Show quoted text -
>>>>> It happened again... woke up this morning, thermostat set to 70, temp
>>>>> was 66. I heard nothing this time (no gas, nothing). Flip the switch
>>>>> from "Heat" to "Off" and back to "Heat" again and voila... furnace
>>>>> running just fine.
>>>>> If it was a relay, would it be flaking out sometimes (even though it
>>>>> appears to be getting worse)?
>>>>> *********************************************************
>>>>> Dude. Notwithstanding Stormy-like comments that you need a new board,
>>>>> what you REALLY need is someone to come over and see what the problem
>>>>> is.
>>>>> End of story, period dot.
>>>> I have someone on the way right now... he should be at my house in the
>>>> next 30 minutes. I just don't want to be blind sided since I'm not a
>>>> HVAC guy. I don't want to come across completely ignorant. If I can
>>>> get some ideas from this board on what it could be, it might help.
>>>> UPDATE:
>>>> it appears that the only way to get the furnace to turn on is to
>>>> manually set it to "off" and back to "heat" again. it has not turned
>>>> on by itself once today.
>>>> I am going to be pissed if this is a big expense... the damn unit is
>>>> only 18 months old. Is York a horrible product?
>>>> I dunno... you tell
>>>> mehttp://www.consumerreports.org/cro/appliances/heating-cooling-and-air...-
>>>> Hide quoted text -
>>>> - Show quoted text -
>>> HVAC guy thinks its the flame sensor. He's going to do a cleaning and
>>> see where its at.

>> Thinks?! Oh great. Sounds like you paid for the best tech you could
>> find.
>> Oh, by the way. You mentioned you were going to be pissed if this is a
>> big expense.
>> How pissed will you be when this guy that "Thinks" and you come home
>> from work to a freezing house with bursted pipes? Oh Joy.
>> Bubba

>
> Yeah, it isn't Rocket Science. Just replace a handful of parts today. If
> that doesn't fix it, come back next week and replace some more parts.
>
> Remember, he needs some more ideas on what might work so he isn't
> blindsided...

That all depends on how big his parts truck is. Worry, if he drives an
18 wheeler pulling doubles. ;-)

>
>

Posted by Jim Dandy on February 4, 2009, 10:44 pm

> > Maybe replace the logic control board. Fan-on timer/relay possibly shot
> > on the board.- Hide quoted text -
> > - Show quoted text -

> It happened again... woke up this morning, thermostat set to 70, temp
> was 66. I heard nothing this time (no gas, nothing). Flip the switch
> from "Heat" to "Off" and back to "Heat" again and voila... furnace
> running just fine.
> If it was a relay, would it be flaking out sometimes (even though it
> appears to be getting worse)?
> *********************************************************
> Dude. Notwithstanding Stormy-like comments that you need a new board,
> what you REALLY need is someone to come over and see what the problem is.
> End of story, period dot.

I have someone on the way right now... he should be at my house in the
next 30 minutes. I just don't want to be blind sided since I'm not a
HVAC guy. I don't want to come across completely ignorant. If I can
get some ideas from this board on what it could be, it might help.

Why do you feel the need to 2nd guess the HVAC technician?

Why does your self esteem need so much help?

No nuts?

Posted by Don Ocean on February 5, 2009, 1:03 am

HVAC wrote:

>> Maybe replace the logic control board. Fan-on timer/relay possibly shot
>> on the board.- Hide quoted text -
>> - Show quoted text -

>
> It happened again... woke up this morning, thermostat set to 70, temp
> was 66. I heard nothing this time (no gas, nothing). Flip the switch
> from "Heat" to "Off" and back to "Heat" again and voila... furnace
> running just fine.
>
> If it was a relay, would it be flaking out sometimes (even though it
> appears to be getting worse)?
> *********************************************************
>
> Dude. Notwithstanding Stormy-like comments that you need a new board,
> what you REALLY need is someone to come over and see what the problem is.
>
> End of story, period dot.

I agree with checking that board for false lockout. It should rebound
within an hour. If it doesn't, its a bad board. What does the blink code
tell you? (I also highly recommend that you call your Service
contractor. He/she/it will be aware of any problems with that model and
any recalls and feild changes that may be required. You may now send
this group a couple of cases of Premium Beer for services rendered. Hell
yes,we will declare it on our taxes.

>
>

Posted by Don Ocean on February 5, 2009, 12:58 am

ATJaguarX wrote:

>> ATJaguarX wrote:

>>> wrote:
>>>> Call the installer ASAP...
>>>> 18 mo. system old ought to be under warranty.
>>>> All you can really do is switch the fan control from Auto to On to see if
>>>> the blower is working.
>>>> Either way it needs someone qualified to take a look...
>>>> goodluck
>>>> geothermaljones
>>>>> I have a newer furnace (about 18 months old) in a new home (just as
>>>>> old). I noticed the other day that I heard the furnace exhaust fan
>>>>> go, followed by the gas starting to burn. A few minutes went by and
>>>>> the blower never kicked in. After a few minutes, I checked the
>>>>> thermostat. It read "Heat On", but it wasn't blowing any air. At
>>>>> this point, the gas had to be burning for 5 minutes. I turned it to
>>>>> "Off" and then back to "Auto". It then went through the same
>>>>> routine.... exhaust on, gas on and finally followed by the blower. I
>>>>> thought it was weird and figured I would keep my eye on it.
>>>>> Today, I notice it was a bit cold in the house, but didn't think
>>>>> anything of it. I got up and heard the gas running again, but noticed
>>>>> that the furnace wasn't blowing. I checked the thermostat again.
>>>>> This time, the thermostat was set to 70 degrees, but was currently 68
>>>>> degrees and read "Heat On" again. Again, I switched it to "Off" and
>>>>> back to "Auto" again and it everything kicked in as expected.
>>>>> I, by no means, am an HVAC expert. I am obviously going to call the
>>>>> HVAC company in tomorrow (too late tonight) to have them take a look
>>>>> at it. I was just hoping that I could get a heads up to what might be
>>>>> the problem so that I'm not taken tomorrow.
>>>>> Any thoughts?- Hide quoted text -
>>>> - Show quoted text -
>>> The blower fan does work. It seems like everything is in line.. but
>>> something isn't telling the blower to turn on.

>> Maybe replace the logic control board. Fan-on timer/relay possibly shot
>> on the board.- Hide quoted text -
>> - Show quoted text -

Call a service company. Why beat a dead horse?

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