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  1. Replies
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    Not that I recall. In heat mode however it...

    Not that I recall. In heat mode however it overshot the setpoint consistently by 1 degree and it was always blowing real strong at that point. So there were times I lowered the tstat by 1 degree so...
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    PCB replaced March 2009. I went thru this all...

    PCB replaced March 2009. I went thru this all last summer, don't know why I never called. Now that we had some hot days I was reminded and this time I don't want to deal with this all summer again.
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    How will I know if it's duct work related? Even...

    How will I know if it's duct work related? Even if it is, why wouldn't the system work at slower speeds like it used to before the PCB replacement? The variable speed blower doesn't seem to use any...
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    Part of the problem with the heating was that it...

    Part of the problem with the heating was that it came on so strong & fast that it always overshot the setpoint. That was part of the Carrier bulletin in fact. I'm not sure if the cooling overshoots...
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    Carrier Infinity blower issues?

    Due to furnace blower issues and a service bulletin, the control board in my Carrier furnace was replaced & it worked great after that. When the heat kicked in it blew super hard only, no slow speed....
  6. Don't know if you're still watching this but if...

    Don't know if you're still watching this but if you are, mind takeing a look at
    http://hvac-talk.com/vbb/showthread.php?t=288892
    It kind of continues this thread except with the AC now.

    Thx.
  7. This is significantly higher & pretty intrusive -...

    This is significantly higher & pretty intrusive - both at the supply & return. I don't recall this last summer. Also, it's causing the tstat to reach temperature way too quickly to dehumidify. The...
  8. OK, fair enough. But what about the other...

    OK, fair enough. But what about the other problems: the AC is way too strong, seems to ONLY be on the highest speed (which seems much higher AND louder then the heat), & the DEHUMIDIFY seems to not...
  9. Infinity AC not working properly after furnace PCB replaced

    Back in March, due to furnace blower issues and a service bulletin, the control board in my Carrier furnace was replaced & it worked great after that. Now I'm having cooling issues & I don't know if...
  10. Sorry, but I forgot to reply. The board in the...

    Sorry, but I forgot to reply. The board in the furnace has been replaced a few weeks ago & everything works like a champ with NO error codes. Thx for the terrific advice. Here's a suggestion maybe...
  11. OK, thx. I'll report back on both issues...

    OK, thx. I'll report back on both issues (probably) tomorrow.
  12. Because this was not ORIGINALLY an Infinity...

    Because this was not ORIGINALLY an Infinity system, there was never an outdoor sensor, so that part of the screen on the tstat was always blank. I *think* this started after I started to fiddle...
  13. No, it's an Infinity tstat. There were 2...

    No, it's an Infinity tstat. There were 2 original systems (1 w/ 2 zones, that's the one with the blowing issues, 1 w/ 1 zone, that's this one) in the house w/ thermidistats. When we added the 2 NEW...
  14. You're correct, I get plenty of 41 & 45 codes as...

    You're correct, I get plenty of 41 & 45 codes as well as 32 (LPS Open). "Run around" was the wrong choice of words. While I never felt anything was deliberate - being a complicated system, I've...
  15. OK, I'd love to see it so I can speak...

    OK, I'd love to see it so I can speak intelligently and more importantly don't get any run-around. Thanks yet again.
  16. By PCB I assume you mean the circuit board? Why...

    By PCB I assume you mean the circuit board? Why did the problem hide for 3 years? The (authorized) Carrier contractor actually came out nearly immediately and claimed they found nothing wrong &...
  17. Infinity system fault causing airflow issues & errors

    Hello,

    1st some background (sorry about the length): In Feb 06 we added 2 new Carrier Infinity Systems to our house (2 furnaces, 2 compressors, etc.). On the other side of the house (itís a big...
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    Yes, you should be able to specify different fan...

    Yes, you should be able to specify different fan modes for each zone (Auto, Low, Med, Hi) independently, and whenever the system isn't running in heating or cooling mode, you should get what you...
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    Probably just near the stat. It's in the master...

    Probably just near the stat. It's in the master bedroom.

    Back to my original problem though: Shouldn't I be able to control the fan speed in EACH zone in an Infinity system w/ 2 zones?

    A...
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    Model #s: 58MVP100-F Gas furnace...

    Model #s:

    58MVP100-F Gas furnace
    CK5BXA048021 - coil
    38TXA048331 - condensor
    Infinity tstats
    Carrier Zoning panel
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    Yes it's noisey. But the bigger problem is...

    Yes it's noisey. But the bigger problem is AC/cooling. The tstat reaches temp quickly and cycles alot. The area gets cool but stays damp.

    I think you're going to tell me that the Infinity...
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    Additional supply/dump zone,is it controled by...

    Additional supply/dump zone,is it controled by zone 1 ,meaning the only time it gets air flow,is when that zone is calling??Above it sounds like "spliced into trunk" ,that it gets air flow anytime...
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    I'll get back with the model #s. No the old...

    I'll get back with the model #s.

    No the old zoning system did not have a bypass damper.

    I know it's best to work thru the contractor but I feel I'm getting incorrect information from them...
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    Now I see the confusion. In my non-hvac mind I...

    Now I see the confusion. In my non-hvac mind I called it a dump zone when in fact it's an add'l supply meant to alleviate too much airflow when only Zone 1 is calling. So yes it's attached near the...
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    Why get rid of it? It's only an add'l supply in...

    Why get rid of it? It's only an add'l supply in a rather large hallway nowhere near the return. Again, it's a supply added to the main trunk just like all the other supplies. So instead of 5...
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