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Troubleshooting a Door Bell Chime

How do I wire a doorbell chime unit? How to Fix a Door Bell Problem, The Most Common Problems with Doorbells and How to Fix Them.

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Electrical Question: How do I wire a doorbell chime unit?

I am not quite sure what the cause is, but I know it is with the doorbell, everything was fine before I disconnected it.  How do I fix my doorbell?
Thanks

This home electrical repairs question came from: Tammy, from Nashville, Tennessee.

Dave’s Reply:
Thanks for your electrical troubleshooting question Tammy.

How to Repair a Door Bell Chime Problem

Application: How to Fix Door Bell Electrical Wiring.
Skill Level: Beginner to Intermediate – Best if wired by a Licensed Electrical Contractor.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
Estimated Time: Depends on personal level experience, comprehension, and ability to work with tools.
Precaution: Identify the supply circuit, turn it OFF and Tag it with a Note before working with the circuit wiring.

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Be Careful and Be Safe - Never Work on Energized Circuits!
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FAQs Frequently Asked Questions and Comments

4 Responses to “Troubleshooting a Door Bell Chime”
  1. Dave Rongey says:

    Hi Henry,
    Inspect the chime and remove any dust that may have accumulated around the door bell parts, then apply a small amount of light weight oil to the chime plunger. Tri-Flow type spray works well for these types of problems.
    I hope this helps,
    Dave

  2. Henry Doll says:

    My doorbell chime has a light “knock” sound coming from the resonator box on one side of the chime. The sound is reoccurring about every three minutes. The chimes work fine but this sound sounds like a footstep in the hallway. Can this be fixed or do I need to replace the chime?

  3. Dave Rongey says:

    Hi Michael,
    It sounds like you would like to have the existing intercom system working, so you may consider troubleshooting the system and making the necessary repairs. From the information you have provided the problem may be that the power supply is at fault and needs to be replaced. As you have discovered, the original manufacturer may be of assistance and have the necessary replacement parts.
    I hope this helps,
    Dave

  4. Michael Rowe says:

    My current home had a monitoring system that included a radio, room-to-room communication, and the doorbell. From any room you could monitor and/or communicate with anyone that rang the doorbell at the front door. The monitoring/communication aspect of the antiquated system has long stopped working. However, the doorbell system works fine. I decided to purchase a wireless video communication/doorbell system that can either be wired into the existing two wire doorbell system or by using a supplied battery pack. However, when using the battery pack, you lose a lot of the functionality of the wireless system. I made an attempt to wire in the doorbell/transmitter into the old system with no success. I made a call to the manufacture who indicated that at least 16-20 volts must be present at the doorbell for there system to work. I placed a meter on the two conductor wires for the doorbell and found a fluctuating 20-47+ volts (not sure what that is about). I was wanting to know if I could somehow step down the voltage from the current voltage to the acceptable range of 16-20 volts A/C?