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Hello All -- is it normal / usual for one but not both heating rods to be warm on a PLS system? Yesterday is the first time I noticed it -- at the moment the rod nearer the tail is activated/warm but not the other.
Yamaha S4
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Assuming that the non-activated one is plugged in the same as the hot one, then it has failed and needs replacement. A rare occurrence, but not unheard of.
Peter Grey Piano Doctor
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Assuming that the non-activated one is plugged in the same as the hot one, then it has failed and needs replacement. A rare occurrence, but not unheard of.
Peter Grey Piano Doctor OK, thank you. I've alerted my tech, but I think he may be away on vacation, which is why I didn't ask him in the first instance. Do you know if it's OK/safe to leave the system running in the meanwhile? I assume that's better than nothing?
Last edited by RobAC; 08/03/21 12:47 PM.
Yamaha S4
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Yes, perfectly fine. You did check the connection at the plug...yes?
Peter Grey Piano Doctor
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Yes, perfectly fine. You did check the connection at the plug...yes?
Peter Grey Piano Doctor I'm kind of a mechanical idiot -- do you mean making sure that both rods are plugged in under the piano?
Yamaha S4
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Yes...to the plug labeled "dehumidifier".
Peter Grey Piano Doctor
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Yes...to the plug labeled "dehumidifier".
Peter Grey Piano Doctor Thanks; it is. My tech replied and has ordered a replacement rod. Do you have any guesses as to how effective the system will be with just one rod operating?
Yamaha S4
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It will be better with the two.
Peter Grey Piano Doctor
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What size piano is it ? For grands up to 5’9” one long heating bar is fine.
Piano Technician and restorer www.snowpianos.com now relocated to Burlington Vermont after 33 years as Head Piano Technician at Boston University School of Music.
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Oops I just saw that it’s a Yamaha 6’3”” S4 model so ideally 2 bars are better
Piano Technician and restorer www.snowpianos.com now relocated to Burlington Vermont after 33 years as Head Piano Technician at Boston University School of Music.
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Oops I just saw that it’s a Yamaha 6’3”” S4 model so ideally 2 bars are better Yeah, I suppose one is better than none. Noticeably the octave and a half a half above middle C has sharped slightly. A=about 440.8.
Yamaha S4
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Just to update, the dehumidifying rod that seemingly failed started working again after a couple of weeks (while waiting for a replacement rod), and I understand that the rods, if defective, virtually never do that. So the culprit was identified as the 3-way adapter, which has been replaced -- so far, so good.
Yamaha S4
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Just to update, the dehumidifying rod that seemingly failed started working again after a couple of weeks (while waiting for a replacement rod), and I understand that the rods, if defective, virtually never do that. So the culprit was identified as the 3-way adapter, which has been replaced -- so far, so good. Sorry I didn't see this thread earlier. I would have suggested getting one of these. https://www.amazon.com/Receptacle-T...mp;psc=1&refRID=4Y56Z5EKQFX90W087AW0could have helped determine the condition of the 3 way adapter (assuming that one of the rods was heating at the time you plugged it into the adapter). Handy to have one around to help determine if power is coming properly through an AC outlet.
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Just to update, the dehumidifying rod that seemingly failed started working again after a couple of weeks (while waiting for a replacement rod), and I understand that the rods, if defective, virtually never do that. So the culprit was identified as the 3-way adapter, which has been replaced -- so far, so good. Sorry I didn't see this thread earlier. I would have suggested getting one of these. https://www.amazon.com/Receptacle-T...mp;psc=1&refRID=4Y56Z5EKQFX90W087AW0could have helped determine the condition of the 3 way adapter (assuming that one of the rods was heating at the time you plugged it into the adapter). Handy to have one around to help determine if power is coming properly through an AC outlet. Thanks -- should it happen again I'll try that!
Yamaha S4
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Question to those who use Piano Life Saver dehumidifier rods with floor length piano cover - what happens to the condensate?
Wise men speak because they have something to say; Fools because they have to say something. (falsely attributed to Plato)
Vlad,
Adult beginner
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There is no condensate since it doesn't get cool enough to condense (under reasonably normal conditions).
Peter Grey Piano Doctor
Last edited by P W Grey; 10/03/21 09:28 PM.
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There is no condensate since it doesn't get cool enough to condense (under reasonably normal conditions).
Peter Grey Piano Doctor Then, considering that this is more or less a close space, dehumidification does not happen? It becomes something like warm sauna? I.e. Piano Life Saver dehumidifier should not be used under floor length cover?
Last edited by VladK; 10/03/21 10:23 PM.
Wise men speak because they have something to say; Fools because they have to say something. (falsely attributed to Plato)
Vlad,
Adult beginner
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The PLS is designed to operate in an environment between about 35% RH and 65% RH. It cannot defend against tropical or desert conditions. One needs more to adequately deal with extreme conditions. Under a cover in moderate conditions it usually works quite well. (I would not recommend a plastic cover...it must "breathe").
Peter Grey Piano Doctor
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