I think the power supply to my external hard drive has failed. Is there anyway I could replace the transformer. There is no way to contact the manufacturers as they have the worst customer services ever (Formac). I have emailed them 5 days ago without a reply.
If it's a regular power block type unit with a standard connector, then it should state clearly on it what the voltage and current output is. If you take it to somewhere like Radio Shack, they should be able to find an equivalent for you.
Im assuming you are just talking about a plug in adapter with the transformer built in. If you look on the face of the transformer pack it should give you a VA rating and a voltage rating. You can buy a new one as long as you match the numbers. Hope this helps.
The in the manual or on the device it should state what the voltage and current or power requirements are. It will state this in volts (in AC or DC) along with milliamps (mA) or watts (W). The wall wart should also state what it has on its output. Typically the outside is negative with the inside being positive. Make sure that any aftermarket or replacement transformer is exactly the same voltage. The amperage or wattage capacity should be the same or greater. (ie a 300 mA can be replaced by a 500 mA or 0.5 A but not a 100 mA) The obvious match of the connector should not be overlooked. If it is too big it will not fit, but if it is too loose it may cause excess current to be needed and may damage the device. An electronics store should be able to set you up with a multi-adapter, multivoltage charger / DC powersupply. Here are some examples of replacement supplies.
