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  1. nothing to worry about.

    nothing to worry about.
  2. Replies
    25
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    1,511

    The reason the rules say no pricing exactly for...

    The reason the rules say no pricing exactly for things like this. There's lots of ways to price. One company charges huge mark ups on the cheap parts that fail often but bids systems so low that...
  3. If it's pitted or has any voltage drop between...

    If it's pitted or has any voltage drop between the line and load sides.
  4. Replies
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    940

    Pay for it and install a float switch.

    Pay for it and install a float switch.
  5. Replies
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    1,877

    That's exactly right. A restriction can act as a...

    That's exactly right. A restriction can act as a metering device. Can't get any more specific since someone reading this might try and DIY which is not allowed here.
  6. Replies
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    1,877

    Sound like it's going to be expensive. You have...

    Sound like it's going to be expensive. You have at least one restriction, the liquid line can not be cooled lower than the 95 degree ambient air. Root cause is the poor install.
  7. Call the dude back that was there 2 weeks ago. I...

    Call the dude back that was there 2 weeks ago. I warranty any work performed, as does most everybody.
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    599

    Doesn't sound like a compressor issue to me...

    Doesn't sound like a compressor issue to me either. You lost all the refrigerant so there's a leak somewhere. I would not advise a high dollar repair on a 15 year old AC.
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    883

    liquid line colder than ambient. Temp drop across...

    liquid line colder than ambient. Temp drop across the drier?
  10. Have someone add return air to the basement and...

    Have someone add return air to the basement and keep it low to the ground. With the fan on it will greatly help even the temperatures.
  11. Replies
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    628

    If it can get to 72 it's not undersized. Have the...

    If it can get to 72 it's not undersized. Have the stage delay timer disabled and use temperature differential for staging.
  12. Turning the breaker off is a good idea if you...

    Turning the breaker off is a good idea if you don't need heat now. It will have to be repaired before AC season or your bills will be crazy high with heat and AC running at the same time. If the...
  13. Replies
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    732

    Did it keep the house at set temperature the...

    Did it keep the house at set temperature the previous 6 summers? If so then have it repaired. Also check on how much price difference between a new coil and a new air handler, often times it's not...
  14. Replies
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    453

    Not allowed and dangerous. Your 80% furnace flue...

    Not allowed and dangerous. Your 80% furnace flue was a negative pressure so the units could be common vented. The PVC flues are positive pressure. Since air will take the path of least resistance the...
  15. Replies
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    671

    X3 on good tires. Sliding around on 1/2" of snow...

    X3 on good tires. Sliding around on 1/2" of snow sounds like you're way over due for some new rubber. When it gets 8" or more deep I throw a set of chains in the van. They help a bunch on those long,...
  16. No you didn't damage the motor. It's designed to...

    No you didn't damage the motor. It's designed to handle that or else customers would need a new inducer assembly any time the drain line plugged up.

    Gravity is the force that causes the water to...
  17. The v drive motor tells the control board that...

    The v drive motor tells the control board that it's working too hard. The board then slows the blower so the motor isn't damaged. The furnace also has a temperature limit switch that shuts the fire...
  18. Over heating and low air flow go hand in hand....

    Over heating and low air flow go hand in hand. Checking total external static pressure (TESP) takes 2 minutes or less. If it runs fine with no filter I'd guess you're lacking enough duct for the...
  19. It happens. Got three out there right now with...

    It happens. Got three out there right now with cracked exchangers that second opinions called good. Some folks think an exchanger is fine so long as the roll outs are not tripping. That's not how I...
  20. Leave it alone for now and start saving for a new...

    Leave it alone for now and start saving for a new furnace, could be several years before needing replaced. Make sure to get the annual service done in the fall so when the bad news comes you have...
  21. Switch to emergency heat and call on Monday. Many...

    Switch to emergency heat and call on Monday. Many heat pumps don't have a low pressure switch and will run even though all the refrigerant leaked out.
  22. Replies
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    678

    Shoot for 350-400 fpm of air through the filters...

    Shoot for 350-400 fpm of air through the filters so they don't plug up so fast.
    Figure out if those filters get it or if two are needed to get the required surface area .
  23. Those coils run quite a bit colder than the...

    Those coils run quite a bit colder than the ambient temperature so at 40 outside there will be frost. The units are supposed to go into a defrost mode to clear it off.
  24. Just for a little perspective that would be a...

    Just for a little perspective that would be a 100,000 BTU furnace only running for 7.9 hours a day. If you're not living there I'd suggest draining all the water from the house and turn the heat off.
  25. Combustion appliances need a specific amount of...

    Combustion appliances need a specific amount of air to burn correctly. When there's not enough combustion air in the area it has to be brought in, sometimes using outside air . Using a window would...
  26. Could be. Your old furnaces had the same type...

    Could be. Your old furnaces had the same type blowers so the electric bill would have been the same but the gas bill higher.

    Three story 3000 square foot house in an area with a 20+ cent per KW...
  27. Replies
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    1,052

    yep, reads in tenths but the display is whole...

    yep, reads in tenths but the display is whole numbers.
  28. Replies
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    1,052

    Half a degree is too low IMO. That's on at 67.5...

    Half a degree is too low IMO. That's on at 67.5 and off at 68 so you'll get a lot of very short cycles. Factory default is 1 degree and seems to work fine.

    Loud blower noise is often a sign of...
  29. Yes the furnace will shut down when it senses an...

    Yes the furnace will shut down when it senses an error such as over heating or a plugged condensate. Error is the key word as it's showing abnormal operation . Dirty filers are the number one cause...
  30. Replies
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    330

    Cool picture. Why reduce the velocity by going...

    Cool picture. Why reduce the velocity by going 3"? I'm used to seeing furnace instructions call for a reduction in size to increase velocity.
  31. It can do the same thing but the installers will...

    It can do the same thing but the installers will have to configure it that way. I'd want to make sure the combustion air zone of the water heater isn't going into a negative pressure first.
  32. Replies
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    393

    Don't forget the step before fixing that problem....

    Don't forget the step before fixing that problem. That would be pulling the burners and finding each cell of the duracurve heat exchanger cracked. Back of the exchanger beside the seam at the first...
  33. Replies
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    1,659

    Call him back then and ask why they're not using...

    Call him back then and ask why they're not using that blue wire for w2.
  34. Replies
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    1,659

    That depends if he set the control board up a...

    That depends if he set the control board up a single stage thermostat or a two stage. If it set to operate on a single stage thermostat then the control board in the furnace will bring on first stage...
  35. Replies
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    1,521

    Real goofy one last week. No heat call that...

    Real goofy one last week. No heat call that should have been a simple clean the flame sensor, except the inducer ran with power off and there was an intermittent 103V present at the control board....
  36. Only knowing the Co in the flue doesn't tell you...

    Only knowing the Co in the flue doesn't tell you nearly enough to diagnose a problem. IMO you would be far better off buying a combustion analyzer.
  37. Replies
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    761

    He wasn't giving you a scare tactic, just a fact....

    He wasn't giving you a scare tactic, just a fact. A furnace will run even with a cracked exchanger, at least until it opens enough to belch flames and massive amounts of CO out the front. You want...
  38. Replies
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    395

    Time to give up on that guy. When someone offers...

    Time to give up on that guy. When someone offers a free kick in the nuts it's better to say no thanks then think what a deal, it's free.
  39. yep. Dumpster diving time.

    yep. Dumpster diving time.
  40. He would not have gotten a manometer reading with...

    He would not have gotten a manometer reading with a blocked port.
  41. Replies
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    1,146

    Charge by superheat and subcool once air flow had...

    Charge by superheat and subcool once air flow had been correctly set. Thirty over ambient was a close rule of thumb with old cap tube systems but you'll grossly over charge a modern system. Lots of...
  42. What's the problem? The tech told you what's...

    What's the problem? The tech told you what's wrong and that another part isn't acting as it should and might need replaced soon. You can get the pressure switch replace and wait for the inducer to...
  43. Replies
    5
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    577

    You'll get zero dollars credit for already...

    You'll get zero dollars credit for already installed(used) units. If he refuses to install the xc25's tell them to leave the AC's and evap coils out of the install price and you'll hire someone...
  44. Replies
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    508

    Sounds like the annual maintenance might need to...

    Sounds like the annual maintenance might need to be done.
  45. Replies
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    1,317

    Much smaller runs of a custom foot print and...

    Much smaller runs of a custom foot print and mount.
  46. Probably a control issue and not burned elements....

    Probably a control issue and not burned elements. Service tech will get you comfortable again.
  47. Are you sure the humidifier is controlled by the...

    Are you sure the humidifier is controlled by the thermostat? I never saw a manual control left in the circuit when the Icomfort was supposed to be running it.

    Any humidity display on the...
  48. Replies
    2
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    350

    It will not lock out cooling. Just tested it on...

    It will not lock out cooling. Just tested it on my system.
  49. Replies
    2
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    310

    Sounds like the thermostat is not configured...

    Sounds like the thermostat is not configured correctly.
  50. Replies
    1
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    331

    The PVC should be raised.

    The PVC should be raised.
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