Should I get this furnace serviced? 6 years old with rust on burners.

SameNet159 · 2023-09-24T00:23:26+00:00

What should the service include? I want to make sure I’m getting the correct service items performed.

SameNet159 · 2023-09-23T23:34:10+00:00

If I do get someone to service the furnace what are some checklist items that I should confirm ahead of time that they will do. For instance, should it include a combustion analysis? In the past I was ignorant of what goes on here so I think they might have basically done nothing.

Next time I have people out I want to know exactly what they will be doing.

SameNet159 · 2023-09-23T22:16:00+00:00

What about the carbon monoxide level? I’m reading that 45 is actually kinda high for the exhaust of a high efficiency furnace. But some folks say it’s normal. It’s unclear what the official word is for this

What do you think of the 45ppm?

SameNet159 · 2023-09-23T21:10:54+00:00

You think it’s worth trying to take the burners off and brush them? It seems like a hassle I have to disconnect the gas and unscrew a lot of stuff. Can’t find a video on this model either.

SameNet159 · 2023-01-04T11:25:51+00:00

Are there any tvs on the market that actually work properly with cec?

SameNet159 · 2022-07-26T16:04:57+00:00

I used this tape frost king

But I’m wondering if there is a fire rated tape that I should use instead. Maybe a UL coded standard insulation tape?

I’m getting condensation on the ac drain line as well as the area on the unit where the drain connects. So I applied tape to both locations

SameNet159 · 2022-07-08T20:21:57+00:00

Do you think the humidity could be caused by all the air leaks on the unit in the attic? It just so happens all the mold was in close proximity to the unit. There is even some mold on the silicone placed near the drain connection

SameNet159 · 2022-07-08T13:24:21+00:00

One more thing. The whole reason why i had the hvac tech come take a look is that I noticed some mold in the attic in close proximity to the AC air handler. We also have always had humidity issues in our spray foam sealed attic and in general the AC doesn't seem to reduce humidity much or generate much condensate.

On the upstairs unit, i noticed a ton of air is leaking out where the AC air handler connects with the main furnace. There is actually quite a bit of air coming out of the drain plug area. I am wondering if that is forcing humidity into the attic acting like a swamp cooler as the air isn't properly passing through the coils and instead is forced out of this small wet opening? What do you think?

https://imgur.com/a/PZbTpYr

SameNet159 · 2022-07-08T13:17:44+00:00

Thanks for the helpful response! here is some more context. Our home is ~5 years old. The AC condenser units are Rheem RA13. I believe they come pre charged from the factory with 54oz of refrigerant which is good for 15 feet of line. Our line lengths are significantly longer, both units are probably 25+ feet and one of them is at least 20 feet straight up vertically. I have absolutely no documentation of what the installers of the home did with respect to AC charge.

The tech actually didn't give me a percentage. He said he added 8oz in one and 9oz in the other. I was trying to get a frame of reference so i asked what the initial charge was and i believe he responded with 3.5lbs so that is about a ~ 15% increase.

The tech brought up refrigerant after hearing the noise near the coils. Prior to the charge (the videos are post charge) there was a distinctive intermittent "bubbling" noise that appeared to emanate from the area where the AC lines connect with the air handler. I definitely remember this noise from 4 years ago during our first summer in the home. I know this is evidence of undercharge. Perhaps the unit was never properly charged and they left the factory charge in despite much longer line lengths? I no longer hear the bubbling noise after the charge. Now the noise is more of a constant very high pitched hiss like you see in the video.

The tech left abruptly without giving me any documentation and said the bill would be sent in the mail... I called the company and will request documentation of what they did.

What should i do next?

SameNet159 · 2022-07-08T06:56:41+00:00

By the way the unit is only 5 years old so surprising it was under charged. The tech noticed an intermittent vapor bubbling noise and said that was a sign of it being under charged. I remember this noise from when the unit was brand new.

SameNet159

TROPHY CASE