Questions tagged [transformer]

For questions about transformers, devices which convert alternating current from one voltage to another.

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Would a transformer protect a 24V digital flow meter if it received 48V?

I purchased a new water softener for the house. It has a digital flow metering device. It worked great for a few days and then stopped working. Long story short, I finally figured out that the outlet ...
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1answer
2k views

How can I use a second transformer to power my zone controller?

My system uses an EWC Controls model NCM 300 zone controller, that is currently powered using the transformer in the air handler unit. I'm installing two new smart thermostats, and the power ...
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2answers
254 views

Electric Garage heater contactor failure

I own a Fahrenheat FUH724 (7500 watts) electric heater for my 2 car, uninsulated garage. I installed this unit 12/2017 along with a Nest thermostat. An Aube rc840t-240 relay was used to step down the ...
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1answer
193 views

Is this a doorbell transformer? How to test if faulty?

My doorbell has stopped working. I am trying to test each of the components using a multi-meter. However, the wires seem to go through the ceiling etc, so I can't trace where they are going or what ...