our door bell stopped working and I was under the impression that there might be a wire cut somewhere after some DIY activities happened in the house. However, when I did continuity test on both wires (the wire connecting to the door bell switch out side the house and the mains that is coming from the transformer at the consumer unit) both seems to me ok. I then moved next to test the power coming out of the transformer. I was expecting a reading of 6 or 12v DC when I put my voltmeter across terminal 4 and 8, see pic below. but got no reading at all. does this mean the transformer is faulty?
door bell stopped working
- Thread starter Zehroni
- Start date
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do you have an auto ranging voltmeter ? if not, was it on DC or AC Volt measurement
looks like a 12V AC o/p from Pins 4 & 8
looks like a 12V AC o/p from Pins 4 & 8
Do you have mains power going in at the top of the transformer when you check with the multi-meter? If you do then it looks like the transformer is dead, if you don't then you need to trace the supply cables and find the issue on that side.
You've tried turning the two MCBs that are off back on haven't you? Or are they intentionally turned off, although one doesn't appear to have anything connected to it.
You've tried turning the two MCBs that are off back on haven't you? Or are they intentionally turned off, although one doesn't appear to have anything connected to it.
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Did you test the mains voltage going to the transformer primary?
Did you test the output voltage with the secondary connections removed?
Did you test the output voltage with the secondary connections removed?
well spotted Danny, I was under the impression that the transformer work in the same way as the rest of the MCBs and taking live from the bosbar behind it. but it was not. it was actually taking power from the MCB next to it. the wire I took from that MCB was feeding the transformer. put it back again and I and getting 17.2v AC reading on the voltmeter. thank you all
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