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Posted by jwardl on November 4, 2006, 11:03 am
This has probably been mentioned before, but I can't find it...
I have a gas furnace with an electrical starter. Can't find a brand or model
number ANYWHERE on it, so, that doesn't help (I can email a photo to anyone
who'd like to take a shot). It's about 10 years old.
Tried turning it on during the first cold snap. Normally, an internal blower
comes on, After about a minute, the electric heating element starts to glow,
there's a click, and the burners light-up.
Now, all that is still happening -- except, the burners don't light. I'm
certain the gas is on, because the line that feeds it also goes to the hot
water heater, which t's off, giving each device it's own shutoff valve. I've
tried both positions for the furnace valve just to be sure, but there's no
difference.
There's no smell of leaking gas at all during any part of the process. While
I don't know jack about heaters, it appears that the gas line passes through
some sort of electronic control module, which presumably has an internal
valve that allows the gas to pass to the burners. It looks to me that that
module isn't functioning. It has an on/off switch on it, but playing with it
hasn't changed anything. There's also a master power switch that controls
power to the entire central heat/air system (including the thermostat), but,
resetting that hasn't helped, either.
The thermostat APPEARS to be working properly.
Two things to consider:
1. A few weeks before then, I'd found the master power switch, and didn't
know what it was. I flipped it off to find out, saw what it did, and turned
it back on. It wasn't a sudden on/off cycle, so, I don't think that had
anything to do with it.
2. A storm fried a transformer outside the house a few months ago, and while
the power company crew was attempting to fix it, a surge passed through the
house and blew up my microwave and another kitchen appliance. Everything
else was fine, but, maybe that took out this module?
Any suggestions would be appreciated. I'd also like to have some idea what
the repair cost would be, both do-it-yourself (if this is something an
average person can do), and having someone come out.
Thanks!
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Posted by Bubba on November 4, 2006, 2:51 pm
wrote:
show/hide quoted text
>This has probably been mentioned before, but I can't find it...
>I have a gas furnace with an electrical starter. Can't find a brand or model
>number ANYWHERE on it, so, that doesn't help (I can email a photo to anyone
>who'd like to take a shot). It's about 10 years old.
>Tried turning it on during the first cold snap. Normally, an internal blower
>comes on, After about a minute, the electric heating element starts to glow,
>there's a click, and the burners light-up.
>Now, all that is still happening -- except, the burners don't light. I'm
>certain the gas is on, because the line that feeds it also goes to the hot
>water heater, which t's off, giving each device it's own shutoff valve. I've
>tried both positions for the furnace valve just to be sure, but there's no
>difference.
>There's no smell of leaking gas at all during any part of the process. While
>I don't know jack about heaters, it appears that the gas line passes through
>some sort of electronic control module, which presumably has an internal
>valve that allows the gas to pass to the burners. It looks to me that that
>module isn't functioning. It has an on/off switch on it, but playing with it
>hasn't changed anything. There's also a master power switch that controls
>power to the entire central heat/air system (including the thermostat), but,
>resetting that hasn't helped, either.
>The thermostat APPEARS to be working properly.
>Two things to consider:
>1. A few weeks before then, I'd found the master power switch, and didn't
>know what it was. I flipped it off to find out, saw what it did, and turned
>it back on. It wasn't a sudden on/off cycle, so, I don't think that had
>anything to do with it.
>2. A storm fried a transformer outside the house a few months ago, and while
>the power company crew was attempting to fix it, a surge passed through the
>house and blew up my microwave and another kitchen appliance. Everything
>else was fine, but, maybe that took out this module?
>Any suggestions would be appreciated. I'd also like to have some idea what
>the repair cost would be, both do-it-yourself (if this is something an
>average person can do), and having someone come out.
>Thanks!
I'll be happy to diagnose your repair. Just send me a pic over of your
furnace. DON'T forget to credit my PayPal account $99.
After that and a few more pics and emails, I'll be happy to give you
the repair estimate.
If you're looking for a repair estimate right outta the box for
free..................then just keep on searching.
Most HVAC companies only give free estimates on equipment replacement.
"Happy Trails"
Bubba
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Posted by danger@heat.com on November 4, 2006, 6:05 pm
Well sounds like you got if figured out, if the HSI glows and you
hear a click but no ignition or sound/smell of gas, then the gas
valve is bad, or you have no fuel supply. Make sure the gas valve
is turned on, make sure the valve on the gas pipe is turned so it
runs with the pipe. It's possible it may take a few attempts, after
sitting all summer, to purge out air until gas hits the igniter.
If the inducer is starting and the igniter is glowing then the
transformer and thermostat are fine. I wouldn't worry about the
power surge. I think your problem is unrelated.
Good Luck
Canadian Heat
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Posted by bowgus on November 4, 2006, 6:33 pm
jwardl wrote:
show/hide quoted text
> Any suggestions would be appreciated. I'd also like to have some idea what
> the repair cost would be, both do-it-yourself (if this is something an
> average person can do), and having someone come out.
> Thanks!
Bite the bullet and call a service guy. Up here an ignition module is
about $450 cdn ... or ... it could get real expensive, not to mention
real dangerous, if you start throwing parts at a gas furnace.
OT: I made the mistake of not paying attention when I had the addition
and new furnace installed. What the heck ... a furnace is a furnace.
Well, 12 years later when a problem came up (no ignition), and I went
without heat for 2 weeks in winter (fortunately I have 2 furnaces, one
in each side of the house) while the module was being tracked down, I
learned that not all furnace are created equal. And what pissed me off
was, after waiting 2 weeks, a competent technician dropped by, moved
the igniter a little closer to the gas, and problem solved.
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Posted by Bubba on November 4, 2006, 7:30 pm
show/hide quoted text
>jwardl wrote:
>> Any suggestions would be appreciated. I'd also like to have some idea what
>> the repair cost would be, both do-it-yourself (if this is something an
>> average person can do), and having someone come out.
>> Thanks!
>Bite the bullet and call a service guy. Up here an ignition module is
>about $450 cdn ... or ... it could get real expensive, not to mention
>real dangerous, if you start throwing parts at a gas furnace.
>OT: I made the mistake of not paying attention when I had the addition
>and new furnace installed. What the heck ... a furnace is a furnace.
>Well, 12 years later when a problem came up (no ignition), and I went
>without heat for 2 weeks in winter (fortunately I have 2 furnaces, one
>in each side of the house) while the module was being tracked down, I
>learned that not all furnace are created equal. And what pissed me off
>was, after waiting 2 weeks, a competent technician dropped by, moved
>the igniter a little closer to the gas, and problem solved.
Sounds like you had a Rheem.
Bubba
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>I have a gas furnace with an electrical starter. Can't find a brand or model
>number ANYWHERE on it, so, that doesn't help (I can email a photo to anyone
>who'd like to take a shot). It's about 10 years old.
>Tried turning it on during the first cold snap. Normally, an internal blower
>comes on, After about a minute, the electric heating element starts to glow,
>there's a click, and the burners light-up.
>Now, all that is still happening -- except, the burners don't light. I'm
>certain the gas is on, because the line that feeds it also goes to the hot
>water heater, which t's off, giving each device it's own shutoff valve. I've
>tried both positions for the furnace valve just to be sure, but there's no
>difference.
>There's no smell of leaking gas at all during any part of the process. While
>I don't know jack about heaters, it appears that the gas line passes through
>some sort of electronic control module, which presumably has an internal
>valve that allows the gas to pass to the burners. It looks to me that that
>module isn't functioning. It has an on/off switch on it, but playing with it
>hasn't changed anything. There's also a master power switch that controls
>power to the entire central heat/air system (including the thermostat), but,
>resetting that hasn't helped, either.
>The thermostat APPEARS to be working properly.
>Two things to consider:
>1. A few weeks before then, I'd found the master power switch, and didn't
>know what it was. I flipped it off to find out, saw what it did, and turned
>it back on. It wasn't a sudden on/off cycle, so, I don't think that had
>anything to do with it.
>2. A storm fried a transformer outside the house a few months ago, and while
>the power company crew was attempting to fix it, a surge passed through the
>house and blew up my microwave and another kitchen appliance. Everything
>else was fine, but, maybe that took out this module?
>Any suggestions would be appreciated. I'd also like to have some idea what
>the repair cost would be, both do-it-yourself (if this is something an
>average person can do), and having someone come out.
>Thanks!