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The unit is a package unit. The burner does appear to bed fed on a single pipe. When the unit starts, I dont see a flame in the second burner. The flame only comes in after the unit is operating...

Well, they are coming over on Thursday to fix the compressor. If swapping the leads and returning the flame sensor back to its original spot doesnt work, then I'll have them work on that as well.

From the looks of the lack of ideas, I've probably out troubleshot the pros. I will admit now that I have inadventantly removed the ability of the unit to properly detect a flame in the second...

Actually, in looking at some parts lists, it looks like it may have 2 flame sensors. The first flame sensor looks similar to this:


So, the question would be why would pointing the second flame...

The unit has a single flame sensor. Not 2 flame sensors. It either detects fire or no fire. Since the second burner will never be on without the first, then the flame detector is USELESS for...

I have had 3 contractors over a period of a couple years to try and fix my XL14C dual fuel unit. The problem is that when the gas pack tries to come on, the gas ignites after the sparker runs, then...

I do know the unit is R22, because that is what the label said outside. I would suspect the units have a 10 year warranty on all the expensive stuff.

bmatthews: We aren't cutting it close, but...

Ok. 4 ton is bigger than I expected, but still doesn't make sense having 700 electric bills in the summer. An inspector looked at the install and said it was one of the cleanest installs he had...

Model: 24ABR348A0031010

This is the situation... I am looking at buying a large home (3800 sq feet). The HVAC install looks high end (is 4 years old). It includes the unit above, a smaller unit...

My unit has a modulating by-pass. I dont think I would be tripping the high heat limit. I have been watching the duct temperature, and it doesnt get too hot. Looks like I'll need to call him out...

I had a Trane XL14c duel fuel unit and Honeywell HZ432 installed this past summer.

Tonight I noticed that the house was cold. Set point was at 68, yet the house was 63. Something not right. ...

OK. That tells me what I need. I thought they would take in the outside temp in consideration to runtime. Thanks!!

So I think I am going to install a Trane XL14c for a replacement for my Carrier 48SS.

Couple of questions...

I currently have a zoned system. The zoned system does not have a static bypass. I...

Well get this... The trane guy was the one that said he wouldnt work unless it was 60 degrees outside. He was an independent, and even went as far as stating that if he hurt himself in my attic due...

The duct system for the upstairs makes a run straight across my crawl space, makes a 90 degree turn to the attic, then makes another 90 degree turn to a metal plenum. no metal ducts. all flex. ...

Well, apparently there are a lot of hack contractors out there in the HVAC industry.

I have a window unit upstairs. It is a large window unit that cools my large master bedroom. I have shut off the vents to the room, however, even with this unit running, the other rooms are hot hot...

zone controlling has nothing to do with inadequate ducting of the upstairs area.

I understand. Just new ducts arent happening. Guess I'll have to roll the dice and see what happens. If I end up going with a 4 ton unit, and it still sucks, then I'll either just settle with it,...

The only spot that is loud is the register that is literally cut into the 12 inch supply duct that feeds the upstairs. The individual registers in the rooms make no noise. My plans are to remove...

I agree that its not really moving 3 tons of air, but I needed to have the numbres add up to make some point. There is unfortunately a register that is using the upstairs supply to cool a room that...

A couple of reponses....

First, thanks for all the responses!

Second, the duct size isnt going to change. There is no way I can get another supply out without tearing apart my home. Simply is...

Ok. Another take. so the third guy came by tonight. The first thing he did is start taking temperature readings.

He knew my main issue was cooling the upstairs. He agrees that the 12 inch...

Thanks. Up to this point, I am not sure which of the 2 contractors I have seen are more competant. After 8 PM tonight, I'll have a third one on the list.

The house heats great, btw. heating is...

I have a 10 year old house with a Carrier 48SS-036080321 3 ton unit (packaged). the unit has been giving me fits for years. The house is never very cool when it gets hot out. We have had a heat...