How to Fix Piano Keyboard Keys

Written by robert russell
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If you are having a problem with your piano keys sticking, a few tactics can be used to correct the problem. This will save you the expense of a professional repair job. Humidity is the most typical culprit behind sticky piano keys. Humidity will cause the wooden keys to swell. Humidity also causes moisture problems that will make the keys stick. Another typical problem is a foreign object or debris becoming lodged in between or underneath the keys.

Skill level:
Moderately Easy

Things you need

  • Paring knife
  • Screwdriver
  • Cardboard shims

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    Swollen Keys and Humidity Problems

  1. 1

    Press down the keys that are sticking. While firmly holding them down, insert the tip of a screwdriver between the two keys. Move the screwdriver slightly between the keys to nudge the keys apart.

  2. 2

    Remove the screwdriver. Play the keys. If they are still sticking, repeat the process a few more times. This method will work for both white and black keys that stick together because they are swollen. If the keys are still sticking, proceed to the next step.

  3. 3

    Unscrew and loosen the key slip. Fold a business card in half to use as a shim. Insert the card between the keys and the key block. Move the card back and forth to collect moisture. If the keys are still sticking, make a few more shims and place them along the length of the keyboard.

    Remove Foreign Objects

  1. 1

    Remove the piano shelf. Sometimes piano keys stick because a foreign object has become wedged in between the keys, so you have to remove the piano shelf to fix the problem. Refer to the manual if you are unsure how to remove the shelf.

  2. 2

    Concentrate on the keys that are sticking. Use a paring knife to move between the keys. The knife should dislodge any foreign objects or debris that is wedged in between the keys.

  3. 3

    Place your finger on the back of the key and lift the key up to look underneath. Be careful not to remove the key completely. Lift the key up and drop it to dislodge anything that may be trapped underneath.

  4. 4

    Replace the piano shelf. If you did not find any foreign objects and the keys are still sticking, the problem is probably a faulty spring or lubrication problem. This situation is best handled by a professional.

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