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  1. Another possibility is ducts outside the...

    Another possibility is ducts outside the conditioned area pulling in dust from an attic or crawlspace.
  2. Thread: I'm newbie here

    by kdean1
    Replies
    14
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    389

    All the mobile home dealers I know of look for...

    All the mobile home dealers I know of look for fast and cheap. High static pressure is the norm with no practical way to improve air flow. Poor air filtration, if any, is to be found on most units....
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    "But I can fix it by myself if someone will just...

    "But I can fix it by myself if someone will just tell me how!"
  4. Thread: Trane aud issue

    by kdean1
    Replies
    7
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    210

    Tell us what you measured. Did you check for...

    Tell us what you measured. Did you check for reversed polarity or bad ground? How? What tests have performed?
  5. Thread: Trane aud issue

    by kdean1
    Replies
    1
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    129

    Site rules prohibit giving technical advice in...

    Site rules prohibit giving technical advice in the AOP forum.
  6. Replies
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    271

    We cannot give information on how to test or...

    We cannot give information on how to test or repair your unit. Site rules prohibit giving advice for DIY.
  7. The tech probably did not remove and clean the...

    The tech probably did not remove and clean the pilot burner and orifice during the inspection. It does not need to be done every time so he may have overlooked it.
    it is not a task for a homeowner....
  8. Thread: I'm newbie here

    by kdean1
    Replies
    14
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    389

    :putergreet:Welcome!

    :putergreet:Welcome!
  9. Replies
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    610

    If you can provide us some information about what...

    If you can provide us some information about what you’ve measured we may be able to help. Draft, safeties ohmed, voltage?
  10. The brass fitting is an SST adapter. It’s ok....

    The brass fitting is an SST adapter. It’s ok. However, the coupling is a thread protector, NOT a pipe coupling because it does not have tapered threads. It must be replaced.
    It doesn’t matter if...
  11. Replies
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    4,508

    From the site rules: "Equipment Owners- Guests...

    From the site rules:

    "Equipment Owners- Guests are allowed to post questions to our industry professionals relating to help with your existing issues or future equipment strategies. You may do so...
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    As long as it's an interior location that is not...

    As long as it's an interior location that is not affected by drafts or heat sources that should be fine.
  13. I've never heard of that use. I suspect he's...

    I've never heard of that use. I suspect he's using customer's systems as experiments.

    I would ask for approval from the spray foam provider for that application.

    I can't imagine the surface...
  14. Replies
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    170

    Thermostat location is governed by places NOT to...

    Thermostat location is governed by places NOT to put it - outside wall, kitchen, stairway, in view of the main door, bedroom with a closed door. A dining room is usually a good place. Sometimes too...
  15. Replies
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    4,508

    The point of the previous two posts is that after...

    The point of the previous two posts is that after 3 years we consider it a DEAD THREAD.

    Additionally, site rules prohibit giving DIY advice.

    Plus, when Asking Our Pros, the post belongs in...
  16. Replies
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    318

    Poll: Steam humidifiers produce more humidity. We have...

    Steam humidifiers produce more humidity. We have installed several and they’re working fine.
  17. Replies
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    241

    Has your tech called technical support?

    Has your tech called technical support?
  18. Site rules prohibit giving technical advice for...

    Site rules prohibit giving technical advice for DIY. A technician is needed on site to diagnose it.
  19. Replies
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    239

    Site rules prohibit giving technical advice. ...

    Site rules prohibit giving technical advice.
    The answer is probably yes, but it depends on the air handler.
  20. AOP is the wrong forum. You need to click on the...

    AOP is the wrong forum. You need to click on the little black triangle at the bottom of your post and ask the moderator to move it to Tech to Tech forum.
    Provide your credentials as a technician.
  21. A single filter per system is not enough surface...

    A single filter per system is not enough surface area. The velocity will be too high. It does not matter that the filter size matches the furnace, it needs a lower velocity to alleviate the noise....
  22. We cannot give technical advice by site rules. ...

    We cannot give technical advice by site rules.

    You need a better service company.
  23. You need to know the the static pressure before...

    You need to know the the static pressure before deciding on a filter. I have found in some cases that a MERV 11 is too restrictive and a MERV 8 is better.
  24. “Too”follow? “Too” keep?

    “Too”follow? “Too” keep?
  25. Replies
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    Measure the diameter of the duct first. You may...

    Measure the diameter of the duct first. You may be able to get a boot of the the same width as the diameter as the duct. If the size matches, enlarge the hole in the floor and connect the boot to the...
  26. It’s hard to get a good fit for a round hole. Cut...

    It’s hard to get a good fit for a round hole. Cut a square hole. Cut a square patch with stapling flaps. Fit the patch, staple flaps and tape them. Mastic if you want.
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    As often as it gets dirty. Same for changing air...

    As often as it gets dirty. Same for changing air filters.
  28. Replies
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    518

    Where have you measured voltage and what were the...

    Where have you measured voltage and what were the readings?
  29. Replies
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    870

    ^x2. Limit switches aren’t “bad.” They wear...

    ^x2.

    Limit switches aren’t “bad.” They wear out because of low air flow, often from inadequate ducts for the equipment.
  30. Did they by any chance install a bigger system...

    Did they by any chance install a bigger system than you had before? That would explain everything.
  31. I hate Nest!

    I hate Nest!
  32. Replies
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    246

    I not only "don't like" the Nest. I hate it! It...

    I not only "don't like" the Nest. I hate it!
    It can operate fine for months and then cause havoc for 5 minutes. Then it behaves normally for days. One caused us to first replace the refrigerant in...
  33. Replies
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    439

    We have replaced ECM motors on systems that we...

    We have replaced ECM motors on systems that we installed and set blower speeds at installation. The static pressure even below .5" WC on one of them. Yet the expensive "energy-saving" motor failed in...
  34. Replies
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    439

    It's a furnace you can drive with the top down...

    It's a furnace you can drive with the top down and a blonde babe in the passenger seat!
  35. Thread: Two Zone Advice

    by kdean1
    Replies
    9
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    315

    Lots of dampers are spring-closed, power open...

    Lots of dampers are spring-closed, power open requiring just two wires. Why are they recommending 3 wire systems?
  36. I hear a lot of air noise. It is because the...

    I hear a lot of air noise. It is because the blower is open to the closet. That is typical of condo/apartment installations.
  37. Replies
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    Good catch! You're not one to change parts...

    Good catch! You're not one to change parts because "it could be the problem."
  38. Replies
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    Heat pumps produce 300% more Btu/kW than electric...

    Heat pumps produce 300% more Btu/kW than electric heat during >40° outdoor conditions. Electric heat is one of the more expensive forms of heat.
  39. Thank you for informing us, Dad. I also hope...

    Thank you for informing us, Dad.

    I also hope the like button gets fixed. I hate wasting electrons to repost to say "Like."
  40. Your inclusion of the installation instructions...

    Your inclusion of the installation instructions seems to indicate you may have installed the furnace yourself. Site rules prohibit giving advice for DIY.
    Testing furnace installations requires...
  41. An 8x22 return trunk is barely adequate for a 60k...

    An 8x22 return trunk is barely adequate for a 60k input high efficiency furnace. Adding an 8" duct won't be enough.
    The duct charts are poorly understood by many contractors. That's why so many...
  42. Call around and ask the companies if they measure...

    Call around and ask the companies if they measure static pressure and perform combustion analysis. You can reject those who do not.
  43. Thread: A/S lockout

    by kdean1
    Replies
    13
    Views
    581

    With the little information you’ve provided so...

    With the little information you’ve provided so far, all we can do is guess.
    What and where have you measured? What is the equipment and model?
    You need to think in terms of what manufacturer tech...
  44. Replies
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    389

    That beats mine. I found a furnace fed by a...

    That beats mine. I found a furnace fed by a natural gas well with 13” WC last week. I started investigating after finding CO exceeding 2000 PPM.

    In the situation of your tech, I would have looked...
  45. Thread: A/S lockout

    by kdean1
    Replies
    13
    Views
    581

    What’s the static pressure with just the smallest...

    What’s the static pressure with just the smallest zone calling? Low air flow may be causing elevated refrigerant pressure.
  46. Thread: A/S lockout

    by kdean1
    Replies
    13
    Views
    581

    You mention one stat. Is this a zoned system? ...

    You mention one stat. Is this a zoned system?

    What happens if then EAC cells are temporarily replaced with a 5” filter?
  47. My intention was to get the OP to consider the...

    My intention was to get the OP to consider the design of the air flow, if in fact, there was a design.
    We cannot see air or the pressures within the duct system without measurement. Fiddling with...
  48. How did closing the vent affect the static...

    How did closing the vent affect the static pressure?
  49. Get rid of the Nest. I’ve had so much trouble...

    Get rid of the Nest. I’ve had so much trouble with them that I refuse to let my customers use them with new equipment.
    Honeywell thermostats have beenreliable.
  50. Replies
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    There is a link in my sig to find site members. ...

    There is a link in my sig to find site members.

    This link locates those who have gone the extra mile for their training:
    https://www.myhomecomfort.org/
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