Wall Clocks - Common faults

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The clock appears to be over-wound.

This is term that is often used to describe a clock that has stopped and yet appears fully wound.  It is exceptionally difficult to over-wind a clock and very rarely happens.  It is more likely that the clock has seized up and requires a service or overhaul.  If this has happened, please take it to a professional clock repairer.

 

The clock stops after only a few minutes (or does not run at all)

If this happens it may be because the clock is what we refer to as being ‘out of beat’  i.e the mechanism has not been leveled correctly.   We often find that this happens when customers move a clock to a new location, and the clock is then sitting at a different level.  You can tell if this is the case by listening to the sound of the tick.  The tick tock should be even (the time between the tick and tock should be the same and not demonstrate a skipping sound).  For a wall clock, move the bottom of the case slightly to one side or the other to see if this corrects the beat.  If the beat is correct but the clock stills stops, then the clock will need to be taken to a repairer.

Other causes of this fault could be that the pendulum is rubbing on the back of the case or one of the hands is rubbing on the glass door.

 

The clock stops 5-10 mins after or before the hour

This may also be caused by the strike mechanism jamming. In this case try to take the minute hand back a full 20 minutes and then slowly move the hand forward.  (Again, if the hands lock while you are doing this stop and speak to a specialist clock repairer).   If this problem continues to develop, take your clock to a specialist clock repairer.

   
The clock does not keep the correct time – runs fast or slow

To alter the timekeeping of the clock the pendulum bob needs to be adjusted.  This is done by turning the screw/bolt which is located below the pendulum bob.  If the clock runs slow turn the bolt to the right.  This pushes the bob up the pendulum rod and increases the speed of the clock.  If the clock runs fast, turn the bolt to the left.  It is advisable to make one small adjustment and then leave it 24 hours before making another adjustment. 

 

The clock appears to be over-wound.

This is term that is often used to describe a clock that has stopped and yet appears fully wound.  It is exceptionally difficult to over-wind a clock and very rarely happens.  It is more likely that the clock has seized up and requires a service or overhaul.  If this has happened, please take it to a professional clock repairer.