Doorbell buzzing after replacing broken button

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  #1  
Old 09-17-16, 01:19 PM
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Doorbell buzzing after replacing broken button

Not sure if this is the right forum, but my 16 year old doorbell button was cracked and then fell apart. Replaced with wired Hampton bay button. Chime on wall inside is Nutone. Only get buzzing sound when I push button. Removed button and touched wires together. Only buzzing. Is the chime unit broken and need replacing or is there a fix?
 
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Old 09-17-16, 01:48 PM
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Remove the cover and see if the plunger is sticking from year of dust and dirt.
 
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Old 09-17-16, 02:46 PM
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The plunger should be cleaned with lighter fluid. It should never be oiled.
 
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Old 09-17-16, 05:09 PM
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If door bell button was stuck closed (pressed position) when it broke, it may have melted plunger shaft hole.

Plunger was not designed to be powered for extended period of time and if door bell button was stuck closed or incorrectly wired (shorted) for extend period of time, it will overheat and plastic holding the plunger and coil will melt. Once short circuit is removed, plastic cools down and hardens. Now the plunger is stuck.

Only good way to fix that will be replacing the door bell.
You could use rear door plunger if you have one, but it will make "ding" sound only as "dong" part is damped with a sponge and a stop.
You can make it sound "ding-dong" if you remove this damper and stop, but still have to transfer hammer from broken side (assuming it did not melt as well).
 
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Old 09-17-16, 06:10 PM
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Plastic part of plunger melted, will replace the chime unit. Thanks!!
 
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