Welcome to the Piano World Piano Forums
Over 2 million posts about pianos, digital pianos, and all types of keyboard instruments
Join the World's Largest Community of Piano Lovers (it's free)
It's Fun to Play the Piano ... Please Pass It On!

Gifts and supplies for the musician

Piano Acc. & Gift Items in
Piano World's Online Store
In PianoSupplies.com ,(a division of Piano World) our online store for piano and music gifts and accessories, party goods, tuning equipment, piano moving equipment, benches, lamps and more.

Free Shipping on Jansen Artist Piano Benches
(ad) Pianoteq
(ad) Pearl River
Pearl River Pianos
(ad) P B Guide
Acoustic & Digital Piano Guide
Who's Online
129 registered (accordeur, bananasushi, 3times2, AZNpiano, augustm, 30 invisible), 1811 Guests and 6 Spiders online.
Key: Admin, Global Mod, Mod
(ad) Estonia Piano
Estonia Pianos
Quick Links to Useful Piano & Music Resources
Our Classified Ads
Find Piano Professionals-

*Piano Dealers - Piano Stores
*Piano Tuners
*Piano Teachers
*Piano Movers
*Piano Restorations
*Piano Manufacturers

Quick Links:
*Advertise On Piano World
*Free Piano Newsletter
*Online Piano Recitals
*Piano Recitals Index
*Piano & Music Accessories
*Live Piano Venues
*Music School Listings
* Buying a Piano
*Buying A Acoustic Piano
*Buying a Digital Piano
*Pianos for Sale
*Sell Your Piano
*How Old is My Piano?
*Piano Books
*Piano Art, Pictures, & Posters
*Directory/Site Map
*Virtual Piano
*Music Word Search
*Piano Screen Saver
*Piano Videos
*Virtual Piano Chords
Topic Options
#1645816 - 03/22/11 12:01 PM Does humidity affect digital piano actions?
12345dan Offline
Junior Member

Registered: 01/22/10
Posts: 19
Hello, I'm having a problem with my yamaha p140 and also a cp 33. When I use it in certain buildings it the action starts to get really sluggish. It just feels like the action gets heavier. I talk to a guy at a music store and he said it was due to different acoustics in different rooms, so I plugged in headphones but still had the same problem. It's only in certain buildings, mainly old ones. As soon as I bring it into a different building it goes back to normal. I took apart the cp 33 last night and looked at the action mechanism, but didn't see anything that looked like it would be affected by humidity. Anyone else have this problem? Any ideas of what could be causing it? Any help would be greatly appreciated

(ads) Sweetwater / Roland
Your Next Keyboard is at Sweetwater

Click Here

#1645841 - 03/22/11 12:37 PM Re: Does humidity affect digital piano actions? [Re: 12345dan]
craig son of berg Offline
Full Member

Registered: 03/16/08
Posts: 172
Loc: WPB, FL, US of A
not sure but I guess if keys/action are wooden, its possible. maybe the environmental change affects even the pickup sensors as well. ps. im new to DP world:)
play that one again sam

#1645902 - 03/22/11 01:52 PM Re: Does humidity affect digital piano actions? [Re: 12345dan]
erichlof Offline
Full Member

Registered: 04/26/10
Posts: 410
Hi 12345dan,

I play a Yamaha P155 and have been experiencing the same problem as you have. Although my keyboard is slid into an acoustic piano casing so it does not move locations, therefore I ALWAYS have this problem. I'm in humid Houston, TX, where we sometimes have 90-100% humidity.

I don't know whether it is this particular line or model, but the middle area, the octave around middle C is very sluggish compared to the treble and even the bass, which is supposed to be heavier due to graded action! Sometimes the middle notes do not speak, when pressed lightly (I have a light touch). But the upper octaves and lower octaves speak with the same light touch. I'm not sure if humidity could only affect one region of the keyboard, or is that where most notes are played in performance, so they get the most use and degenerate faster? I've only owned this DP for 9 months.

I'm thinking about calling the warranty before the time expires and having them address this issue. I will post my findings to PianoWorld forums if it comes to this. Let us know if you can pinpoint your causes for this sluggish action problem in Yamahas.

P.S. as a slightly related problem, with all Yamahas I have owned, namely P80, P90, P120, P155, there are times in the middle area where I will be playing a nice quiet ballad, and then POP, a middle note is triggered with 127 velocity! Scares the heck out of me. It then will not do it for another month or so. It's kind of unnerving because I never know when I will be assaulted with this out of place velocity sensor. Anyone know how to fix that?


#1646780 - 03/23/11 08:24 PM Re: Does humidity affect digital piano actions? [Re: erichlof]
galaxy4t Offline
500 Post Club Member

Registered: 08/28/08
Posts: 863
Loc: Lakewood, CA
There's an outside chance there could be a glitch with the keybed. However usually when notes don't sound or sometimes play loud, it usually is a dirty actuator. On the other hand, the octave around middle C does get a lot of use so it might need to be greased up. It sounds like your piano is still under warranty. Try calling Yamaha support and see what they say.


Moderator:  Piano World 
the Forums & Piano World

Trying Something New with Search
(ad) Yamaha CP4 or CP40 Free Bag
Buy a CP4 or CP40 Get a Free Bag
(ad 125) Sweetwater - Digital Keyboards & Other Gear
Digital Pianos at Sweetwater
(ads) PD - WNG - MH
Wessell Nickel & Gross
Ad (the Piano Store)
the Piano Store - Restored Steinway Pianos
(125ad) Dampp Chaser
Dampp Chaser Piano Life Saver
New Topics - Multiple Forums
Looking for a used grand in the realm of £10-11k.
by tf_tzu
11/29/15 03:23 PM
Anyone know where I can get old RCM books?
by bananasushi
11/29/15 03:15 PM
Change sounds on Nord more quickly
by massave
11/29/15 02:22 PM
1938 Straube Console
by marslender
11/29/15 01:47 PM
Looking for a used upright
by wildivy
11/29/15 12:41 PM
What's Hot!!
Posting Pictures on the Forums
Forums Rules & Help
on Piano World

The world's most popular piano web site.
Forum Stats
81,594 Registered Members
44 Forums
168,656 Topics
2,470,766 Posts

Most users ever online: 15,252 @ 03/21/10 11:39 PM

Visit our online store for gifts for music lovers

Help keep the forums up and running with a donation, any amount is appreciated!
Or by becoming a Subscribing member! Thank-you.
Donate   Subscribe
Our Piano Related Classified Ads
Dealers | Tuners | Lessons | Movers | Restorations | Pianos For Sale | Sell Your Piano |

Advertise on Piano World
| Subscribe | Piano World | PianoSupplies.com | Advertise on Piano World | Donate | Link to Us | Classifieds |
| |Contact | Privacy | Legal | About Us | Site Map | Free Newsletter | Press Room |

copyright 1997 - 2015 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission