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  1. Replies
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    219

    With stop leak in the system you will want new...

    With stop leak in the system you will want new lines.
  2. Replies
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    859

    You won't get how to answers in this section but...

    You won't get how to answers in this section but get your post count up and apply for pro status. In the closed sections we can go into greater detail
  3. Replies
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    859

    We buy our own tools. Fielpice meters come with...

    We buy our own tools. Fielpice meters come with wet bulb and dry bulb temperature probes.
  4. Replies
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    1,619

    No oxygen, no boom. Now if it blows out a...

    No oxygen, no boom. Now if it blows out a terminal then the house is burning down.
  5. Measure your air flow.

    Measure your air flow.
  6. Replies
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    1,619

    . Wholesale R22 isn't that expensive. It's a...

    . Wholesale R22 isn't that expensive. It's a lot more than it was 4 years ago but so is a good steak at the grocery store.
  7. Replies
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    872

    Our inspection report is pretty straight forward....

    Our inspection report is pretty straight forward. Top of the page model and serial numbers. Heat exchanger, compressor ,thermostat, flue and safeties have a box to check as ... working...not...
  8. Replies
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    480

    I like to eliminate big blocks at once by...

    I like to eliminate big blocks at once by starting at the AC and working back as needed. After making sure the thermostat is calling of course.
    Unit not running.,..is there line voltage and is the...
  9. Replies
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    1,225

    Sure sounds like you're sucking in outside air....

    Sure sounds like you're sucking in outside air. Return and/or supply must be leaking .
  10. Replies
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    865

    Pull the burners out so you can look inside the...

    Pull the burners out so you can look inside the tubes. Then spritz a little water on the marks. Look inside the tubes and if the water goes through they're cracks. If it doesn't go through then...
  11. No way for us to help without a furnace or air...

    No way for us to help without a furnace or air handler model number.
  12. Post a model number of the furnace or air...

    Post a model number of the furnace or air handler. That module may no longer be available but there's likely a new motor and module made to replace it. Your Lennox repair man should have an answer....
  13. Replies
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    290

    Just because it worked at inspection doesn't mean...

    Just because it worked at inspection doesn't mean anything. Just like us humans, machines can be fine one minute and broke the next. Time to get it checked again.
  14. Replies
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    1,090

    I usually tell folks to start budgeting for a new...

    I usually tell folks to start budgeting for a new system once they hit 15-17 years old. That gives them a few years to save and have the cash when it does have a very expensive break down.
  15. Replies
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    212

    Let the folks installing the new one tear out the...

    Let the folks installing the new one tear out the old. You have control wires, one or more 240v feeds, duct and refrigerant lines under a lot of pressure ( if it has cooling).
  16. Replies
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    264

    yes it will still switch to gas without the...

    yes it will still switch to gas without the balance point set.
  17. Replies
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    965

    How old is it? I would not advise anyone to stick...

    How old is it? I would not advise anyone to stick a new compressor in an out of warranty r22 system
  18. Replies
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    935

    Get rid of the restricted drier and check the...

    Get rid of the restricted drier and check the orifice while its empty
  19. Replies
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    310

    Call back and ask how much to check with an...

    Call back and ask how much to check with an electronic leak detector. Shouldn't be more than an hours worth of labor
  20. Replies
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    545

    Defrost mode does not run the fan in reverse....

    Defrost mode does not run the fan in reverse. Sound like there's more than one problem.
  21. Replies
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    809

    Guessing the supply duct runs underground since...

    Guessing the supply duct runs underground since its a down flow model. That type up set up loses a lot of BTU's to the ground. Trust what they are sizing
  22. Replies
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    1,015

    Ask the boss why condenser coil cleaning is not...

    Ask the boss why condenser coil cleaning is not included in routine maintenance. That should be included in any spring check IMO
  23. nothing to worry about.

    nothing to worry about.
  24. Replies
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    1,881

    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...
  25. 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.
  26. Replies
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    1,177

    Pay for it and install a float switch.

    Pay for it and install a float switch.
  27. Replies
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    2,572

    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.
  28. Replies
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    2,572

    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.
  29. 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.
  30. Replies
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    787

    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.
  31. Replies
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    1,311

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

    liquid line colder than ambient. Temp drop across the drier?
  32. 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.
  33. Replies
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    831

    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.
  34. 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...
  35. Replies
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    945

    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...
  36. Replies
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    625

    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...
  37. Replies
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    912

    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,...
  38. 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...
  39. 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...
  40. 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...
  41. 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...
  42. 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...
  43. 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.
  44. Replies
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    1,083

    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 .
  45. 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.
  46. 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.
  47. 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...
  48. 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...
  49. Replies
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    1,902

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

    yep, reads in tenths but the display is whole numbers.
  50. Replies
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    1,902

    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...
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