How to troubleshoot your Cuckoo Clock


Your Clock Does Not Run or Keep Time

(2:30 min - easy)



The Cuckoo Is Not Calling

(1:10 min - easy)


Troubleshoot Clock Hands and Number Of Calls

(4:15 min - easy)



The Music Does Not Work

(2:50 min - advanced)




General Care and Maintenance

Cuckoo clocks do not need very much regular care. Modern movements are sophisticated, easy to maintain and durable. To clean the clock please use a soft dry paint brush. Please have the movement checked and oiled at regular intervals of approximately 3-4 years by a clock maker.

You can prolong the lifetime of your cuckoo clock by using it at standard room temperature. Temperatures below 5 °C (40°F), high humidity of the surrounding air, too much dust or dampness may damage your clock.

Please do not hang the cuckoo clock directly above an open fire place as the very dry and warm air might distort the wooden parts and the oil in the bearings of the clock movement might dry up. Minor damage on the wooden parts and carvings due to transport may occur sometimes and can not be avoided. Please repair such minor damages yourself by using wood glue and a felt-tip pen in the appropriate color.

Please note: Mechanical Cuckoo clocks are delicate products and should not be used as a toy by a child. Chains may break and weights may fall down if too much force is used.


Troubleshooting Tips 

Clock is running too fast:

  • Move pendulum down.


Clock is running too slow:

  • Move pendulum up.


Cuckoo does not call:

  • Shipping clips have not been removed.
  • Night switch off is set to OFF.
  • For clocks with automatic night shut-off, the clock is set to the night phase (where the cuckoo and music do not play).
  • Remove shipping clips and gong paper.
  • Turn night shut-off setting to ON.


Clock makes a slight noise (on a regular basis) about 5 minutes after the actual clock strike at the hour:

  • A technical function in the clockwork is preparing the clock to strike/cuckoo.
  • This is a normal function and not a defect.


Clock does not strike exactly on the hour/ half-hour:

  • The minute hand was not installed correctly on the clock face.
  • Allow the clock to strike the hour and then stop the pendulum.
  • Using flat-nosed pliers, loosen the screw on top of the hands, along with any other accompanying disks, noting how they were assembled.
  • If the minute hand (long hand) is not riveted to the square rod, adjust the minute hand, replace the screw and test to see if the time is now correct.
  • If the minute hand is riveted to the square rod, adjust the square rod with the flat-nosed pliers to adjust the minute hand, replace the screw and then test to check the time.
  • Repeat this step patiently until the correct position is found.


Clock stops running after a short running time or only runs if pendulum is not hung at angle on the wall:

  • The connection between the pendulum and the clockwork is not properly aligned.
  • Slant the clock to the right or left on the wall to hear in which position the clock ticks evenly.
  • Take the pendulum off; gently bend the pendulum stick (where pendulum is hung up on) in the direction that the clock is hanging (clock hanging to the left, bend to the left, hanging right, to the right).
  • Bend until you feel resistance and then gently bend just a bit more.
  • Hang the clock back to its straight position, hang the pendulum up and check how it ticks.
  • Repeat this procedure until clock is running evenly.


Gong sound is tinny:

  • There's not enough space between the gong spring and the hammer.
  • Open the back of the clock and push the hammer head of the gong hammer back (in the direction of the clockwork) by about 1 mm or less than 1/16 of an inch.
  • If the gong spiral is too close to the back plate, carefully pull it out by a small amount.