Doorbell systems with two doorbell switches use six wires. The transformer supplies a low-voltage power supply for the home's centralized alarm systems, including the doorbell and sometimes fire-safety systems.
With a doorbell , the low-voltage electricity flows to each doorbell switch through thin wires. Unscrew the doorbell button to remove it from the wall. Loosen the screws on the back of the button and disconnect the wires. Then touch the two wires together. If the chime rings, the button is bad. Touch your test leads to the output terminals of the transformer. Change the multimeter to read volts AC or higher.
Touch the leads of the multimeter to the input connections of your transformer. Clearly, if you are testing voltages the circuit should be on, but if you are replacing any of the bits transformer, doorbell , doorbell button, doorbell wiring the circuit should be turned off. Even a 12 volt short can cause a fire and you never know, something may have been wrongly connected to a volt line. Virtually anyone with a screwdriver can accomplish this task.
Turn off the breaker that supplies the power to the doorbell. Remove the doorbell button. Remove the doorbell chime cover and unscrew the wires that supply the unit with power. Locate the doorbell transformer, which is usually in the basement. Most wired doorbells will use a doorbell transformer to power the system. There are battery powered wired doorbells that will use batteries, thus bypassing the need for a transformer , but these systems have some limitations.
Originally Posted by sj Location: Caverns measureless to man I'd have just rewired it to turn on the sprinkler system whenever someone rings the bell. Please register to post and access all features of our very popular forum. It is free and quick. Additional giveaways are planned. Detailed information about all U. Posting Quick Reply - Please Wait. Search this Thread Advanced Search.
Similar Threads My doorbell keeps ringing!!! How to disable a doorbell with no breaker? AC, heater, insulated. Locate the doorbell transformer, which is usually in the basement. Unscrew the wires supplying the doorbell unit with power that lead away from the transformer. These wires enter the house's main living area, usually along a floor joist. They can be cut at anyplace along this run; simply tape the cut ends with electrical tape. In some cases the transformer is plugged into a volt outlet.
If that is the case, simply unplug the transformer to disable the entire doorbell system. If the transformer is hard-wired into the household electrical circuit, cut the power wires and cover the ends with wire nuts. All doorbells have a transformer that changes volts of household electricity into 24 volts of electricity. Who's Online Now. Welcome Newcomers. Only registered users may post in our forums.
Previous Thread. Next Thread. Print Thread. Copy Link to Clipboard. Share Post on Facebook. Share Post on Twitter. Joined: Sep Posts: 84 Iowa R rgsgww journeyman. Joined: Dec Posts: K Kratos member. Kratos member K Joined: Dec Posts: Where I live, if you had that on the front of your house, I'd suggest wearing body armor and keeping your head down.
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