Opened up furnace to light up pilot light (turned them off last spring) and found these white, ashes like stuff. Is this a sign of carbon monoxide or something just as bad?
Both Units are old dated 1987. I have always had CM gas sensor near each unit and in rest of the house. I do plan to replace the furnaces later this year but for now I just wanted to know if the white stuff is early onset of C.M. gas?
Carbon monoxide is an invisible gas. It does not leave mouse droppings. Most of what you are seeing is corrosion (rust). To know if carbon monoxide is getting into the home the furnace's heat exchanger should be inspected for cracks and corrosion since it's job is to keep combustion gasses separate from the house's air. Your CO detectors in the house are a great bit of insurance so make sure they are relatively new (they have a limited lifespan) and have working batteries.
Carbon monoxide is an invisible gas. It does not leave mouse droppings. Most of what you are seeing is corrosion (rust). To know if carbon monoxide is getting into the home the furnace's heat exchanger should be inspected for cracks and corrosion since it's job is to keep combustion gasses separate from the house's air. Your CO detectors in the house are a great bit of insurance so make sure they are relatively new (they have a limited lifespan) and have working batteries.
Ok I will have them came back and do that.
All the same, separate from the alleged mouse droppings (had me in stitches, but actually it's just debris) the issue of concern for me was the white, ash like stuff. Is that a normal find, in this location, in a gas furnace? Is it an indication of anything? I remember last spring cleaning and vacuuming a whole lot more ashy stuff than you see in the pic.
Update: home warranty approved installation of a new unit. The downstairs unit does such a good job heating upstairs as well. As such the new unit upstairs is barely running. Seems this phenomenon does match the tech's claim about upstairs unit not cooling effectively in summer daytimes, if the downstairs unit ain't running. I will be testing that out this summer. Thanx everyone.
A gas furnace in the basement is usually all that's needed to heat an entire house because the hot air rises. However... an A/C in the basement provides minimal cooling to the second floor.
Our outside unit, a Trane Xl16i, [color=#333333]4TTX6036B1000AA stopped working a few days ago. I believe I have narrowed it down to the the LPCO. I can see the 24V measures across the blue/yellow that are coming from the control board of the blower/furnace. I do not see 24V at the contactor/coil. It looks like the HPCO (Yellow/Black) is working as I can see the 24V from when measuring the blue from the control board and the Black side of the HPCO. I am not seeing the same though for the LPCO, as I do not see 24V across the yellow from the control board and the contactor blue wire that comes from the LPCO. Could something else be pulling the voltage down or is this definitely an LPCO issue? If I engage the contactor manually I do hear the compressor start but not that fan. The schematic seems to show that blue going to the fan so that would make sense. Could it be the fan is bad and it is causing the blue to ground or such? I assume replacing the LPCO means I need someone with pressure gauges, refrigerant? As a test could I by pass the LPCO with a jumper and see if that momentarily bring the system online or is that a risk?
Thank you,
Keith[/color]Read More
Hello,
First post here and looking for some help! Bought this house and found that when either AC or heater runs a very loud “drip” sounds echos from my bathroom vanity. Looks like the furnace/AC drain line was ran into the vanity drain (before the p-trap). There is no leaking. From my reading it seems there probably should be a trap somewhere along this drain line. Also, they combined the AC and furnace drain line and I cannot figure out where to put the trap, clean out, and vent in relation to the AC unit and furnace. I am suspecting that because there is no trap I am hearing the system echo through my piping and amplifying through my vanity sink. It’s unbelievably loud and irritating to say the least. Any help is appreciated!
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01-11-22, 09:18 AM
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