doorbell is always "on"

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  #1  
Old 11-05-18, 11:46 AM
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Smile doorbell is always "on"

Hello,
My doorbell chime is always "on" I mean its plunger is up, and humming. The door bell button is disconnected,
and I have replaced the transformer. I need to identify the wires and start over. The transformer had two red and two blk on the 2 terminals. the chime had two blacks 1 "front" 1 "back" and two reds to "trans" this made the chime always "on" any ideas??
 
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Old 11-05-18, 11:52 AM
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Welcome to the forums.

It would be very uncommon to find two cables on the transformer. Typically there is one to the chime and the two buttons each have a cable that meet at the chime.

OR...... the two button meet at the transformer and then one or two cables is sent up to the chime unit.

Was your system working and then you changed wiring ?
 
  #3  
Old 11-05-18, 11:58 AM
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The wiring does not appear to be correct.
Do you have both front and back door?
How is it wired at the door bell button.
Does disconnecting button stops door bell? If it does, the button is shorted.

The door bell should be wired like this.



There has to be a splice going to the door bell button.


If door bell plunger (solenoid) is powered all all the time, it will overheat and melt plastic parts and fuse the plunger.
If this happens, you will have to replace the door bell. Plunger should move easily.
 
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Old 11-05-18, 12:18 PM
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Op stated button was disconnected.
 
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Old 11-06-18, 05:12 AM
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Lambition's diagram is colored coded wrong. The red wires from the transformer to the door bells should be white since a transformer provides the hot and neutral sources.
 
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Old 11-06-18, 06:08 AM
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There is no color code for door bell wiring as far as I know. The color is meaningless here. As long as they are connected such a way, it is all good.

Also, there are no hot or neutral with door bell. The transformer is isolated transformer.
You can consider it both being hot since both will have some voltage relative to ground.
 
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Old 11-06-18, 12:05 PM
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That is a generic diagram posted. It does not match what the OP has stated. We need to find out if the system was working and after a wiring change it stopped.

With two cables at the chime and two cables connected to the transformer.... there is no mention of the button wiring. Based on this type of wiring and how it's connected..... it would appear that there are two cables at each button location. If there aren't two cables at each button..... then there are splices not found.
 
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