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Type: Posts; User: Tommyz23

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  1. Replies
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    More info could help. Could be.

    More info could help. Could be.
  2. Replies
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    Damage may be done.

    Damage may be done.
  3. Replies
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    2,884

    I've had some of those that are loud or have...

    I've had some of those that are loud or have become loud.
  4. Replies
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    2,884

    Check your SH and SC. Over charge can cause hard...

    Check your SH and SC. Over charge can cause hard starting. Is it a rotary compressor?
  5. Replies
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    616

    Corrosion from the water will change the...

    Corrosion from the water will change the resistance. It's most likely ruined.
  6. Replies
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    2,884

    The hard start could be liquid refrigerant in the...

    The hard start could be liquid refrigerant in the compressor. Check your temp drop before and after the filter drier. Should have more than a degree or so. I think. How's it cooling now that you've...
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    Nailed it.

    Nailed it.
  8. Replies
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    Line set length? Overcharged? It can happen is...

    Line set length? Overcharged? It can happen is what I'm saying. I've seen both.
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    870

    Guy I used to work with thought he pulled a...

    Guy I used to work with thought he pulled a serious vacuum in about five minutes but his gages weren't tight enough onto the port to depress the schrader valves. Haha
  10. Replies
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    It does. Everyone wants to condemn someone for...

    It does. Everyone wants to condemn someone for saying you'll get a high head low suction when we've all seen it (unless all we work on is package units). Type in low suction high head and see what...
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    I've seen bad compressors do that.

    I've seen bad compressors do that.
  12. Replies
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    913

    Don't new PSC motors have a polarity lock on...

    Don't new PSC motors have a polarity lock on them. I can't get the new ones to run backwards and I thought they were made not to.
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    I see both but you know how residential can be....

    I see both but you know how residential can be. I've never see the system before and neither has my company and I have a high head low suction. Package units are great.
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    I'm still going to argue that a slight...

    I'm still going to argue that a slight restriction Causes high heads. It's goes against what were taught and what the books say but high head low suction is a classic sign of a partial restriction in...
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    Gotcha. I was thinking heat pump or ac.

    Gotcha. I was thinking heat pump or ac.
  16. Replies
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    Stupid question. If you're pumping a system down,...

    Stupid question. If you're pumping a system down, you close the liquid port and pull in through the suction. Then close your suction. Your head is obviously going to go down because you're reading...
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    Look at it like its an air to air. You're not...

    Look at it like its an air to air. You're not having trouble with the water side. Still doing the same thing.
  18. Replies
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    5,404

    Stand corrected. I guess I was thinking more of a...

    Stand corrected. I guess I was thinking more of a major restriction with a unit with a high pressure switch.
  19. Replies
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    Negative. There are many tests. Are you saying a...

    Negative. There are many tests. Are you saying a restriction doesn't cause high head? What happens when a txv slams shut?
  20. Thread: Txv question

    by Tommyz23
    Replies
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    1,387

    The power head of the valve goes bad. I'll try...

    The power head of the valve goes bad. I'll try and free them up by putting supco oil and heat the bulb with a lighter. If they stick open, I'll put in oil and then out the bulb in ice. Good temp fix...
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    One times turbo torch got clogged where it...

    One times turbo torch got clogged where it extinguishes the flame. I was brazing in an attic. Set the torch down. Talked on the phone for a few minutes. Got down. Went outside. It started pouring so...
  22. Replies
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    3,880

    Problem resolved?

    Problem resolved?
  23. Replies
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    Any restriction causes high head low suction....

    Any restriction causes high head low suction. It's pumping but can't pull anything back. It's building up head but not bringing it back. To the guy who won't read an article but has the experience,...
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    Really good point. I've seen people put too large...

    Really good point. I've seen people put too large of a cap on it and it did that.
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    710

    Good to know. Must have skipped over that or...

    Good to know. Must have skipped over that or confused with precharging.
  26. Replies
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    I was thinking check the cap, as well.

    I was thinking check the cap, as well.
  27. Replies
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    I thought liquid so that the metering device...

    I thought liquid so that the metering device would flash off the refrigerant. You don't want to hit the compressor with liquid. Could be wrong.
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    Could it not be changing directions? Isn't there...

    Could it not be changing directions? Isn't there a switch? I know those bristol compressors carrier was using in their two-stage units had a lot of problems. They had se bad out of the box. I've...
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    Have you checked amp draw? If the other ones...

    Have you checked amp draw? If the other ones posts blew out, it sounds like it may have been running hot as well. Filter?
  30. Thread: Txv question

    by Tommyz23
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    1,387

    Its a txv for sure?

    Its a txv for sure?
  31. Replies
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    No doubt. I've had that. It's hard to know on...

    No doubt. I've had that. It's hard to know on these forums. I've always said hvac techs would make good detectives!
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    Do you work on generators as well?

    Do you work on generators as well?
  33. Replies
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    Check blower. Makes sure it's moving enough air....

    Check blower. Makes sure it's moving enough air. Make sure duct is fine. Find out what's changed. If nothing, then just make sure the blower is doing its thing. If not, I'd say its the coil. I've...
  34. Replies
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    Nope low run cap. Low start cap it just won't...

    Nope low run cap. Low start cap it just won't start. Run cap was low on the cond fan and it wasn't coming up to speed. Three people had been out there, added charge and left. I will say its good to...
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    Is the cap on the blower weak? Fan not coming up...

    Is the cap on the blower weak? Fan not coming up to full rpm? I had a unit and the suction was 100 head was 250. Thought it was over charged. Found out the capacitor was super low. Changed it. Went...
  36. Thread: XP19 issue

    by Tommyz23
    Replies
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    3,103

    Yup. I've seen it. Mechanically something fails....

    Yup. I've seen it. Mechanically something fails. I've noticed it on a couple that were overcharged. As soon as I got it right, boom. It failed. Would run and work just fine then progressively get...
  37. Replies
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    Right before the liquid line meets the metering...

    Right before the liquid line meets the metering device, is it sweeting? Is it warm/hot all the way until it meets the metering device? If its sweating, before the metering device, then there's a...
  38. Replies
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    I had a unit like that and distributing tubes...

    I had a unit like that and distributing tubes were bad inside. Liquid flooding back and couldn't get it to cool correctly. Had to bring the guy who taught me the trade out. We blew it out and all...
  39. Replies
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    I'd defiantly start from scratch on the...

    I'd defiantly start from scratch on the refrigerant. Slab coil? Z or N coil. Whatever it's called. A coil?
  40. Replies
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    Is it a heat pump?

    Is it a heat pump?
  41. Thread: TXV issue?

    by Tommyz23
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    3,399

    I wonder if they were slick and changed the...

    I wonder if they were slick and changed the filter before you got there. Check the trash can? Haha.
  42. Thread: TXV issue?

    by Tommyz23
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    51
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    3,399

    A unit will not ice up when it's over charged.

    A unit will not ice up when it's over charged.
  43. Thread: TXV issue?

    by Tommyz23
    Replies
    51
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    3,399

    The thermal bulb itself is not position sensitive...

    The thermal bulb itself is not position sensitive in relation to its process tube.
    You can put the bulb in incorrect spots. It will make the valve erratic but not shut down. The liquid in the bulb...
  44. Replies
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    Hold on. Is refrigerant conductive? I don't quite...

    Hold on. Is refrigerant conductive? I don't quite understand that. I didn't fully read. Meter leads? If it had resistance to ground that's bad no matter what.
  45. Replies
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    Yup makes it worse. Floods the evap coil. Liquid...

    Yup makes it worse. Floods the evap coil. Liquid comes back through the suction.
  46. Replies
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    Sounds like he may have.

    Sounds like he may have.
  47. Thread: Start caps

    by Tommyz23
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    2,159

    I see 30 year old units, buzzing along, with the...

    I see 30 year old units, buzzing along, with the original cap. They've changed the oil in the capacitors so they pop faster. Damn EPA. Oh well, more work for us I guess.
  48. It sounds like it was a new install. So, rather...

    It sounds like it was a new install. So, rather than replacing the valves, they replaced the whole unit to fuzzy rub the customer.
  49. Replies
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    Makes perfect sense. Been to a couple installs...

    Makes perfect sense. Been to a couple installs where they've left them out in zone boards. Easy fix. Pretty basic call.
  50. Replies
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    Hardstart or not it won't compress if its grossly...

    Hardstart or not it won't compress if its grossly over charge. He got it running. If its running its past starting. It can't overcome the liquid. But if his friend wired and its running backwards, it...
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