Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the pilot
light tonight for the first time since last winter. The pilot lights fine
and will stay lit as normal. Next I turn the heat up at the thermostat to
run it. this works ok as well. The gas flames, it heats up and the blower
comes on and runs for about 3-5 min. and then all the flames (both pilot and
heating) just cut off. The Blower continues to run like a normal cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt light.
Seems like its some high temperature limit switch or something killing the
gas????? dont know where to start. Any help would be great.

"staselwood" u37849@uwe wrote in message news:7903d1f921fb3@uwe...
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the pilot
light tonight for the first time since last winter. The pilot lights fine
and will stay lit as normal. Next I turn the heat up at the thermostat to
run it. this works ok as well. The gas flames, it heats up and the
blower
comes on and runs for about 3-5 min. and then all the flames (both pilot
and
heating) just cut off. The Blower continues to run like a normal cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt light.
Seems like its some high temperature limit switch or something killing the
gas????? dont know where to start. Any help would be great.


Phone book, heating contractors.

Why would you want to mess with something which you don't have the knowledge
or tools to do the work properly?

On Sep 30, 8:07 pm, kjpro @ usenet.com wrote:
"staselwood" u37849@uwe wrote in messagenews:7903d1f921fb3@uwe...
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the pilot
light tonight for the first time since last winter. The pilot lights fine
and will stay lit as normal. Next I turn the heat up at the thermostat to
run it. this works ok as well. The gas flames, it heats up and the
blower
comes on and runs for about 3-5 min. and then all the flames (both pilot
and
heating) just cut off. The Blower continues to run like a normal cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt light.
Seems like its some high temperature limit switch or something killing the
gas????? dont know where to start. Any help would be great.

Phone book, heating contractors.

Why would you want to mess with something which you don't have the knowledge
or tools to do the work properly?

Cause he wants to, dick head. If you can't give advice keep your
opinion to yourself.
People come here for help 'cause they're not afraid to tackle
problems, that most of the time can easily be fixed by yourself and
save a lot of money, if you just put a little effort in finding out
how things work. I get tired of all the dick head contractors lurking
in here trying to convince people that only contractors are qualified
to do anything. In my experience, the more you can keep the
contractors away and learn to do things yourself, the better off you
will be.

On Sun, 30 Sep 2007 21:57:02 -0700, TH wrote Re
Gas Furnance Problems:

Phone book, heating contractors.

Why would you want to mess with something which you don't have the knowledge
or tools to do the work properly?

Cause he wants to, dick head. If you can't give advice keep your
opinion to yourself.
People come here for help 'cause they're not afraid to tackle
problems, that most of the time can easily be fixed by yourself and
save a lot of money, if you just put a little effort in finding out
how things work. I get tired of all the dick head contractors lurking
in here trying to convince people that only contractors are qualified
to do anything. In my experience, the more you can keep the
contractors away and learn to do things yourself, the better off you
will be.

Well said.

On Sun, 30 Sep 2007 21:57:02 -0700, TH wrote:


Cause he wants to, dick head. If you can't give advice keep your
opinion to yourself.
People come here for help 'cause they're not afraid to tackle
problems, that most of the time can easily be fixed by yourself and
save a lot of money, if you just put a little effort in finding out
how things work. I get tired of all the dick head contractors lurking
in here trying to convince people that only contractors are qualified
to do anything. In my experience, the more you can keep the
contractors away and learn to do things yourself, the better off you
will be.


Amen to that, besides, that kjpro dude wouldn't know how to fix a
heater properly if the instructions were pasted on it. I know because
I've worked with him. He is what we call a hack. Any advice he gives,
I would seriously think twice before I followed it, unless of course
you want to get something really screwed up.

On Sep 30, 8:35?pm, "staselwood" u37849@uwe wrote:
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the pilot
light tonight for the first time since last winter. The pilot lights fine
and will stay lit as normal. Next I turn the heat up at the thermostat to
run it. this works ok as well. The gas flames, it heats up and the blower
comes on and runs for about 3-5 min. and then all the flames (both pilot and
heating) just cut off. The Blower continues to run like a normal cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt light.
Seems like its some high temperature limit switch or something killing the
gas????? dont know where to start. Any help would be great.

i would begin by replacing the thermocouple they are cheap and easy to
replace.....

this elminates one failure area and it may well be the cause

On Mon, 01 Oct 2007 05:20:03 -0700, "
wrote:

On Sep 30, 8:35?pm, "staselwood" u37849@uwe wrote:
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the pilot
light tonight for the first time since last winter. The pilot lights fine
and will stay lit as normal. Next I turn the heat up at the thermostat to
run it. this works ok as well. The gas flames, it heats up and the blower
comes on and runs for about 3-5 min. and then all the flames (both pilot and
heating) just cut off. The Blower continues to run like a normal cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt light.
Seems like its some high temperature limit switch or something killing the
gas????? dont know where to start. Any help would be great.

i would begin by replacing the thermocouple they are cheap and easy to
replace.....

this elminates one failure area and it may well be the cause
Thermocouple problem for sure. jesse

On Sep 30, 8:35 pm, "staselwood" u37849@uwe wrote:
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the pilot
light tonight for the first time since last winter. The pilot lights fine
and will stay lit as normal. Next I turn the heat up at the thermostat to
run it. this works ok as well. The gas flames, it heats up and the blower
comes on and runs for about 3-5 min. and then all the flames (both pilot and
heating) just cut off. The Blower continues to run like a normal cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt light.
Seems like its some high temperature limit switch or something killing the
gas????? dont know where to start. Any help would be great.

This is a common method of running furnaces with thermostats. Many
thermostats (e.g. all that I have every owned) have some sort of
anticipatory or "pre-act" control which shuts off the furnace before
the room has reached the setpoint temperature. The "pre-act"
feature reduces temperature overshoot. Temperature overshoot is
regarded as undesirable by most folks.

The pre-act in simple thermostats is activated by a little electric
heater close to the temperature sensor in the thermostat.

Your thermostat might have a pre-act control which you could adjust.
However, if the thermostat ultimately allows the furnace to heat your
greenhouse to whatever temperature you selected, you really don't
have to fool around with anything.

My old fashioned mechanical thermostats all had adjustable pre-acts.
My current, fancy electronic model does not but really needs it.

-J

I will do that, BTW, it is a new one from last year. Would they go bad in a
season? And if the thermocouple is bad would it not allow the pilot light to
start right? Not second guessing your idea, just trying to make sure I state
the facts and understand the componets correctly...
J


wrote:
Hello All,
First time poster...
[quoted text clipped - 10 lines]
Seems like its some high temperature limit switch or something killing the
gas????? dont know where to start. Any help would be great.

i would begin by replacing the thermocouple they are cheap and easy to
replace.....

this elminates one failure area and it may well be the cause

--
Message posted via HomeKB.com
http://www.homekb.com/Uwe/Forums.aspx/repair/200710/1

Thanks Jason,
Would this "pre-act" feature turn off the pilot light as well? I understand
the concept you are stating about overshoot, but this is killing all the gas.
Not just the burners. So after this I have to relight the pilotlight.

Maybe I should note that i did replace the thermocouple and gas valve last
year.

J


wrote:
Hello All,
First time poster...
[quoted text clipped - 10 lines]
Seems like its some high temperature limit switch or something killing the
gas????? dont know where to start. Any help would be great.

This is a common method of running furnaces with thermostats. Many
thermostats (e.g. all that I have every owned) have some sort of
anticipatory or "pre-act" control which shuts off the furnace before
the room has reached the setpoint temperature. The "pre-act"
feature reduces temperature overshoot. Temperature overshoot is
regarded as undesirable by most folks.

The pre-act in simple thermostats is activated by a little electric
heater close to the temperature sensor in the thermostat.

Your thermostat might have a pre-act control which you could adjust.
However, if the thermostat ultimately allows the furnace to heat your
greenhouse to whatever temperature you selected, you really don't
have to fool around with anything.

My old fashioned mechanical thermostats all had adjustable pre-acts.
My current, fancy electronic model does not but really needs it.

-J

--
Message posted via HomeKB.com
http://www.homekb.com/Uwe/Forums.aspx/repair/200710/1

I would also like to note... I looked in the archives (as suggested) for
other issues like this before posting and came across several other posts
just like the KJPRO one, and all the subsequint posts. I thought, should i
even bother. I do need a fix, and I always like to know something about what
i am either working on or asking someone to work on. So I dont get taken for
a ride by unscrupulous contractors that pray on the un-knowing consumer. If
I blow my self up, shame on me... I should know that gas is flamable and will
ignite if exposed to flame... Thanks to those who posted in my behalf. He
should rethink his marketing plan if he thinks he is getting business from
here... haha

j


You Know Who wrote:
Cause he wants to, dick head. If you can't give advice keep your
opinion to yourself.
[quoted text clipped - 6 lines]
contractors away and learn to do things yourself, the better off you
will be.

Amen to that, besides, that kjpro dude wouldn't know how to fix a
heater properly if the instructions were pasted on it. I know because
I've worked with him. He is what we call a hack. Any advice he gives,
I would seriously think twice before I followed it, unless of course
you want to get something really screwed up.

--
Message posted via http://www.homekb.com

I had a 6 month old thrmocouple fail once. as others pointed out make
sure its in the flame.

On Oct 1, 9:49 pm, " wrote:
I had a 6 month old thrmocouple fail once. as others pointed out make
sure its in the flame.

Not meaning to **** people off but somethings diy wern't meant to do
as I a plumber have found to many times. They mean well but they get
the Bob Vila syndrome and think they know it all. Just give them a
hammer and nail and it will be fixxed. Not to say that there arn't bad
contractors butt there are more good 1 check thermocoupler as stated
for flame contact , 2 Check to see how long the burn goe's for before
going out. 3 If you have never played with a gas heater call a pro gas
tech not a generel contractor and have it done right. 4 Sounds like a
temp sensor to me and you can replace 3 to get it right or one if you
know your unit. Do you not have warranty! To the th who dissed
contractors you are the type I come to fixx the most I can tell. I
aggree people can fixx but know you limits and gas is something not to
play with as it blows up when you do it wrong.

this is one a well. An oil well that we get the gas from. The pressure gage
on the well seems to be normal. It could be. But it relights normal and
will stay lit for long time. but when the burner is kicked on it only runs
for a short time and ALL is cut off. I will blow off the gas lines to make
sure there is not mositure or air.

thanks
j


Stormin Mormon wrote:
The term he's seeking is "heat anticipator". No, that should not shut off
the pilot. Makes me wonder if you have some air in the line, or some other
problem with the gas supply?

: Thanks Jason,
: Would this "pre-act" feature turn off the pilot light as well? I understand
[quoted text clipped - 31 lines]
:
: -J

--
Message posted via HomeKB.com
http://www.homekb.com/Uwe/Forums.aspx/repair/200710/1

flow is good. filter was off when i was working on it, so there shouldnt
have been a restriction there. All the vents were open on the run. Last
season, I had a furnance guy come in and look at it, thats where the new
thermocouple and gas valve came from... He did mess with the temperature
settings for the blower. wonder if that had something to do with it. (it
was really cold when he was working on it... Its still int he 50's night and
80's in the days now. so maybe the cooler temperature was helping keep the
"high temp safety" from triggering last year???

Stormin Mormon wrote:
How's the air flow? If the filter is clogged, or if the vents are closed, it
may very well be shutting off, with the high temp safety.

: Hello All,
: First time poster...
[quoted text clipped - 10 lines]
: Seems like its some high temperature limit switch or something killing the
: gas????? dont know where to start. Any help would be great.

--
Message posted via http://www.homekb.com

"TH" wrote in message
ups.com...
On Sep 30, 8:07 pm, kjpro @ usenet.com wrote:
"staselwood" u37849@uwe wrote in messagenews:7903d1f921fb3@uwe...
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the
pilot
light tonight for the first time since last winter. The pilot lights
fine
and will stay lit as normal. Next I turn the heat up at the
thermostat to
run it. this works ok as well. The gas flames, it heats up and the
blower
comes on and runs for about 3-5 min. and then all the flames (both
pilot
and
heating) just cut off. The Blower continues to run like a normal
cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt
light.
Seems like its some high temperature limit switch or something killing
the
gas????? dont know where to start. Any help would be great.

Phone book, heating contractors.

Why would you want to mess with something which you don't have the
knowledge
or tools to do the work properly?

Cause he wants to, dick head. If you can't give advice keep your
opinion to yourself.


I gave him good advice, you're just too stupid to understand that.


People come here for help 'cause they're not afraid to tackle
problems, that most of the time can easily be fixed by yourself and
save a lot of money, if you just put a little effort in finding out
how things work. I get tired of all the dick head contractors lurking
in here trying to convince people that only contractors are qualified
to do anything. In my experience, the more you can keep the
contractors away and learn to do things yourself, the better off you
will be.


Most homeowners don't have manometers to set/check gas pressures... do you?
Now STFU.

You Know Who wrote in message
...
On Sun, 30 Sep 2007 21:57:02 -0700, TH wrote:


Cause he wants to, dick head. If you can't give advice keep your
opinion to yourself.
People come here for help 'cause they're not afraid to tackle
problems, that most of the time can easily be fixed by yourself and
save a lot of money, if you just put a little effort in finding out
how things work. I get tired of all the dick head contractors lurking
in here trying to convince people that only contractors are qualified
to do anything. In my experience, the more you can keep the
contractors away and learn to do things yourself, the better off you
will be.


Amen to that, besides, that kjpro dude wouldn't know how to fix a
heater properly if the instructions were pasted on it. I know because
I've worked with him. He is what we call a hack. Any advice he gives,
I would seriously think twice before I followed it, unless of course
you want to get something really screwed up.


You're such a liar.
You must be related to Clark.

"staselwood via HomeKB.com" u37849@uwe wrote in message
news:790fb9d7617bf@uwe...
I would also like to note... I looked in the archives (as suggested) for
other issues like this before posting and came across several other posts
just like the KJPRO one, and all the subsequint posts. I thought, should
i
even bother. I do need a fix, and I always like to know something about
what
i am either working on or asking someone to work on. So I dont get taken
for
a ride by unscrupulous contractors that pray on the un-knowing consumer.
If
I blow my self up, shame on me... I should know that gas is flamable and
will
ignite if exposed to flame... Thanks to those who posted in my behalf. He
should rethink his marketing plan if he thinks he is getting business from
here... haha


You're an idiot.
First, I don't come here for marketing reasons.
Second, gas is flammable as you state, but more important is the byproduct
of CO.
Third, I gave you good advice, you're just to stupid to follow it.

Last, go **** yourself.

"Jesse" wrote in message
...
On Mon, 01 Oct 2007 05:20:03 -0700, "
wrote:

On Sep 30, 8:35?pm, "staselwood" u37849@uwe wrote:
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the
pilot
light tonight for the first time since last winter. The pilot lights
fine
and will stay lit as normal. Next I turn the heat up at the thermostat
to
run it. this works ok as well. The gas flames, it heats up and the
blower
comes on and runs for about 3-5 min. and then all the flames (both
pilot and
heating) just cut off. The Blower continues to run like a normal
cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt light.
Seems like its some high temperature limit switch or something killing
the
gas????? dont know where to start. Any help would be great.

i would begin by replacing the thermocouple they are cheap and easy to
replace.....

this elminates one failure area and it may well be the cause
Thermocouple problem for sure. jesse


For sure my ass...

"staselwood via HomeKB.com" u37849@uwe wrote in message
news:790faac70277f@uwe...
Thanks Jason,
Would this "pre-act" feature turn off the pilot light as well?


Hell NO

Just another DIY guy that doesn't know his head from a hole in the ground.

"staselwood via HomeKB.com" u37849@uwe wrote in message
news:791743155b4d2@uwe...
flow is good. filter was off when i was working on it, so there shouldnt
have been a restriction there. All the vents were open on the run. Last
season, I had a furnance guy come in and look at it, thats where the new
thermocouple and gas valve came from... He did mess with the temperature
settings for the blower. wonder if that had something to do with it. (it
was really cold when he was working on it... Its still int he 50's night
and
80's in the days now. so maybe the cooler temperature was helping keep
the
"high temp safety" from triggering last year???


Why don't you stop guessing and make a phone call?

On Mon, 01 Oct 2007 05:20:03 -0700, "
wrote:

On Sep 30, 8:35?pm, "staselwood" u37849@uwe wrote:
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the pilot
light tonight for the first time since last winter. The pilot lights fine
and will stay lit as normal. Next I turn the heat up at the thermostat to
run it. this works ok as well. The gas flames, it heats up and the blower
comes on and runs for about 3-5 min. and then all the flames (both pilot and
heating) just cut off. The Blower continues to run like a normal cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt light.
Seems like its some high temperature limit switch or something killing the
gas????? dont know where to start. Any help would be great.

i would begin by replacing the thermocouple they are cheap and easy to
replace.....

this elminates one failure area and it may well be the cause


Nah. The OP doesn't seem to complain about freezing in the dark in
spite of the short furnace cycles. To me that sounds like the house
needed only a little make up heat to bring it up to the set
temperature. That is the furnace is operating normally. Else the
house is leaking heat fast enough to need make up heat often.

On Oct 2, 10:00 pm, kjpro @ usenet.com wrote:
"TH" wrote in message

ups.com...



On Sep 30, 8:07 pm, kjpro @ usenet.com wrote:
"staselwood" u37849@uwe wrote in messagenews:7903d1f921fb3@uwe...
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the
pilot
light tonight for the first time since last winter. The pilot lights
fine
and will stay lit as normal. Next I turn the heat up at the
thermostat to
run it. this works ok as well. The gas flames, it heats up and the
blower
comes on and runs for about 3-5 min. and then all the flames (both
pilot
and
heating) just cut off. The Blower continues to run like a normal
cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt
light.
Seems like its some high temperature limit switch or something killing
the
gas????? dont know where to start. Any help would be great.

Phone book, heating contractors.

Why would you want to mess with something which you don't have the
knowledge
or tools to do the work properly?

Cause he wants to, dick head. If you can't give advice keep your
opinion to yourself.

I gave him good advice, you're just too stupid to understand that.

People come here for help 'cause they're not afraid to tackle
problems, that most of the time can easily be fixed by yourself and
save a lot of money, if you just put a little effort in finding out
how things work. I get tired of all the dick head contractors lurking
in here trying to convince people that only contractors are qualified
to do anything. In my experience, the more you can keep the
contractors away and learn to do things yourself, the better off you
will be.

Most homeowners don't have manometers to set/check gas pressures... do you?
Now STFU.

Manometer, gas pressure? That's pretty technical stuff, not necessary
for replacing a thermal couple, but I suppose you're trying to look
smart so we'd think we need some plumber with an IQ of 90 to do the
job for for us.

kj (so called) pro doesnt realize this is a public forum for people
to get answers. hes a hack hvac repair man with a bad attitude , likes
to call people names and insult them to make himself feel superior.
take him and his insults with a grain of sand. best not to reply to him.

http://www.minibite.com/america/malone.htm

"Clark" wrote in message
...


Putz

"Clark" wrote in message
...


Putz

"TH" wrote in message
ups.com...
On Oct 2, 10:00 pm, kjpro @ usenet.com wrote:
"TH" wrote in message

ups.com...



On Sep 30, 8:07 pm, kjpro @ usenet.com wrote:
"staselwood" u37849@uwe wrote in messagenews:7903d1f921fb3@uwe...
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the
pilot
light tonight for the first time since last winter. The pilot
lights
fine
and will stay lit as normal. Next I turn the heat up at the
thermostat to
run it. this works ok as well. The gas flames, it heats up and
the
blower
comes on and runs for about 3-5 min. and then all the flames (both
pilot
and
heating) just cut off. The Blower continues to run like a normal
cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt
light.
Seems like its some high temperature limit switch or something
killing
the
gas????? dont know where to start. Any help would be great.

Phone book, heating contractors.

Why would you want to mess with something which you don't have the
knowledge
or tools to do the work properly?

Cause he wants to, dick head. If you can't give advice keep your
opinion to yourself.

I gave him good advice, you're just too stupid to understand that.

People come here for help 'cause they're not afraid to tackle
problems, that most of the time can easily be fixed by yourself and
save a lot of money, if you just put a little effort in finding out
how things work. I get tired of all the dick head contractors lurking
in here trying to convince people that only contractors are qualified
to do anything. In my experience, the more you can keep the
contractors away and learn to do things yourself, the better off you
will be.

Most homeowners don't have manometers to set/check gas pressures... do
you?
Now STFU.

Manometer, gas pressure? That's pretty technical stuff, not necessary
for replacing a thermal couple, but I suppose you're trying to look
smart so we'd think we need some plumber with an IQ of 90 to do the
job for for us.


What says it's not a gas pressure problem?

"Clark" wrote in message
...


Putz

"Clark" wrote in message
...


Putz

"Clark" wrote in message
...


Putz

wrote in message
...
kj (so called) pro doesnt realize this is a public forum for people
to get answers. hes a hack hvac repair man with a bad attitude , likes
to call people names and insult them to make himself feel superior.

I *am* superior to you, as I'll walk circles around you.

take him and his insults with a grain of sand. best not to reply to him.

I like how you really helped the OP with his original problem.
Now, go **** yourself.

staselwood wrote:
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the pilot
light tonight for the first time since last winter. The pilot lights fine
and will stay lit as normal. Next I turn the heat up at the thermostat to
run it. this works ok as well. The gas flames, it heats up and the blower
comes on and runs for about 3-5 min. and then all the flames (both pilot and
heating) just cut off. The Blower continues to run like a normal cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt light.
Seems like its some high temperature limit switch or something killing the
gas????? dont know where to start. Any help would be great.


maybe you have electronic ignition?

In article , Slob wrote:
staselwood wrote:
Hello All,
First time poster...

I have an old gas furnance in my greenhouse that I just re-lit the pilot
light tonight for the first time since last winter. The pilot lights fine
and will stay lit as normal. Next I turn the heat up at the thermostat to
run it. this works ok as well. The gas flames, it heats up and the blower
comes on and runs for about 3-5 min. and then all the flames (both pilot and
heating) just cut off. The Blower continues to run like a normal cooling
phase...

Dont think that it can be the thermocouple can it, or it wouldnt light.
Seems like its some high temperature limit switch or something killing the
gas????? dont know where to start. Any help would be great.


maybe you have electronic ignition?

With a pilot light??

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

"Clark" wrote in message
...


Putz Putz Putz Putz Putz

Get it yet?

"Clark" wrote in message
...


You're a waste of space.

"Clark" wrote in message
...


Are you stuck on stupid?

"Clark" wrote in message
...

there should be a "sig" here


But you couldn't think of anything smart to say so you left it blank, just
like your little brain.

"Clark" wrote in message
...


You missed one... LOL

"Clark" wrote in message
...


So much space yet you have nothing new to say.
Cat got your tongue?

"Clark" wrote in message
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Same ole, same ole..

Is your mother out running errands again?