I d guess that the pendulum operating mechanism has failed.
How to fix a battery operated pendulum wall clock.
Wind the clock if it has stopped running.
However i have 2 clocks with this problem and the duracell did not fix the problem.
All of our battery operated pendulum movements have several things in common.
Also check that the hands aren t touching the glass that covers the encasement of the clock.
You should hear a ticking sound.
Inspect the battery compartment for corrosion.
Remove any loose corrosion from the battery.
This is a typical problem that clock owners overlook and repairman find in seconds of laying eyes on the face of the piece.
Swing the pendulum on the inside of the clock if it has a pendulum.
The battery compartment can be found on the back of the clock.
The battery is accessible from the backside of the clock.
The battery is retained in position by a tiny metal plate.
Insert a screw driver or blade into the case notch at the side of the back cover and prise open the back cover.
However the pendulum mechanism on these clocks is purely cosmetic and has nothing to do with the timekeeping.
If not there may be internal damage.
How to troubleshoot wall clocks.
They also operate independently of the actual clock movement and have no effect on it.
Use your fingers to pry up one end of the battery.
I have heard that quartz clocks run best with duracell copper top batteries.
Simply start the pendulum swinging and move the case gently until the tic and toc are in good balance.
Open the battery compartment with your fingertips and nails or use a screwdriver to open it.
They are all operated by an electro magnet that gives a pulse to a magnet on the pendulum arm which gives the pendulum a very natural swinging motion.
This should release it from the compartment.
Move the plate sideways and remove the battery.
Your only recourse would be to buy a new movement as these are not serviceable.
The clock was never a wind up.
Step 1 open the battery compartment.
Use a screwdriver to press in the clip or unscrew it 1 x research sourcestep 2 remove the old battery.
I m afraid there are no experts on battery clocks on this forum.
That there is some connection problem with regular batteries and the duracell copper tops fix a lot of problems such as dead pendulum.
Open the door and bring the pendulum all the way to the side then let.
Dispose of the battery 2 x research sourcestep 3 clean the terminals.
How to fix battery operated clocks.