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  1. #27
    Join Date
    Aug 2007
    Location
    Northern VA 38 degrees N by 76 degrees W
    Posts
    5,062
    Quote Originally Posted by s012adh View Post
    Which panel is the dip switches behind? When I'm looking at it, I see a big panel on the right side with the cover to the breakers. Then to the left of it, there's a couple of smaller panels. I didn't want to just start taking off panels so I figured I would ask first.

    Also, is it common for there to be a humming noise coming from the air handler when the air isn't even running?
    The large panel.

    Yes the hum you hear is the transformer.

    Take several pics so we can see the dip switches and control wires clearly.

  2. #28
    Join Date
    Mar 2007
    Posts
    55
    The filters were changed a little over a month ago and still look good as new. They are pleated. The size of them is 12x12x1. No, I do not run the fan continuously. I just have it set to come on when the heat comes on.

    I got home late from work today but will try to get pictures taken tomorrow or Friday after work.

  3. #29
    Join Date
    Mar 2007
    Posts
    55
    Tonight I noticed something interesting...When the heat pump goes into defrost mode, the temperature that comes out of the register drops significantly (back to close to the temperature of the air that is in the house). Once it is done defrosting, the temperature goes back up to what it was before the defrost cycle. Is this normal?

  4. #30
    Quote Originally Posted by s012adh View Post
    The filters were changed a little over a month ago and still look good as new. They are pleated. The size of them is 12x12x1. No, I do not run the fan continuously. I just have it set to come on when the heat comes on.

    I got home late from work today but will try to get pictures taken tomorrow or Friday after work.
    number of filters?

  5. #31
    Join Date
    Mar 2007
    Posts
    55
    3 filters (2 returns upstairs and 1 return downstairs)

  6. #32
    Join Date
    Dec 2002
    Location
    Rochester, MN
    Posts
    5,305
    Quote Originally Posted by s012adh View Post
    Tonight I noticed something interesting...When the heat pump goes into defrost mode, the temperature that comes out of the register drops significantly (back to close to the temperature of the air that is in the house). Once it is done defrosting, the temperature goes back up to what it was before the defrost cycle. Is this normal?
    Sounds like something is not wired up right.. The heat strips should turn on when it goes into defrost....

  7. #33
    Join Date
    Mar 2007
    Posts
    55
    Now I'm beginning to wonder if anything else is wired up wrong...

    I have noticed a few times (but definitely not near all the time) but didn't think much of it then that when the heat (or air) first comes on, the air seems to blow at the "normal" rate for a second or two before kicking back down to the level it's supposed to run at for the first minute or two before ramping up to the "normal" level. Is this normal or could something else be wired incorrectly?

  8. #34
    Join Date
    Aug 2007
    Location
    Northern VA 38 degrees N by 76 degrees W
    Posts
    5,062
    Quote Originally Posted by s012adh View Post
    Now I'm beginning to wonder if anything else is wired up wrong...

    I have noticed a few times (but definitely not near all the time) but didn't think much of it then that when the heat (or air) first comes on, the air seems to blow at the "normal" rate for a second or two before kicking back down to the level it's supposed to run at for the first minute or two before ramping up to the "normal" level. Is this normal or could something else be wired incorrectly?
    Post clear pictures and we can help.

  9. #35
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    Quote Originally Posted by s012adh View Post
    3 filters (2 returns upstairs and 1 return downstairs)
    Should to 24X24 total minimum,so on the small side,plus who knows what duct sizes.

    3M filters??

  10. #36
    Join Date
    Jan 2008
    Posts
    7
    Quote Originally Posted by s012adh View Post
    Tonight I noticed something interesting...When the heat pump goes into defrost mode, the temperature that comes out of the register drops significantly (back to close to the temperature of the air that is in the house). Once it is done defrosting, the temperature goes back up to what it was before the defrost cycle. Is this normal?
    THIS IS NORMAL- DEFROST IS DONE IN THE AC MODE. IF WIRED PROPERLY YOU SHOULD BE USING ELECTIC HEAT WHILE SYSTEM IS IN DEFROST. DEPENDING ON THE WATTAGE OF THE STRIP HEAT, THE END RESULT IS THEY MAY CANCEL EACH OTHER OUT.

  11. #37
    Join Date
    Mar 2007
    Posts
    55
    I took several pics yesterday afternoon and have uploaded them to a web site...I tried uploading them here directly but every time I tried, it just said the upload failed so I don't know what the problem is with the board. Here are the pics:

    http://i179.photobucket.com/albums/w...rnace_pic1.jpg
    http://i179.photobucket.com/albums/w...rnace_pic2.jpg
    http://i179.photobucket.com/albums/w...rnace_pic3.jpg
    http://i179.photobucket.com/albums/w...rnace_pic4.jpg
    http://i179.photobucket.com/albums/w...rnace_pic5.jpg

    If anyone needs the original, full-sized 8 megapixel pictures, just let me know. Thanks!

  12. #38
    Join Date
    Mar 2007
    Posts
    55
    When the heat pump is in the defrost mode and aux heat should be running, should the thermostat show that it's using aux heat? Whenever it is in defrost mode, it never shows "aux heat on" on the thermostat.

  13. #39
    Join Date
    Jun 2003
    Location
    Hell Hole Swamp
    Posts
    4,180
    The dip switches are configured for a 3.5 ton, assuming they did actually measure the airflow at 1202 cfm, that is a non issue, at worst you are moving 150 extra cfm and that would not cause the issues you are having

    The wiring appears to be correct, assuming the thermostat and outdoor unit are wired accordingly

    Some of the honeywell models do not show the aux heat indicator when the system is in defrost

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