You could replace the cord top top the dryer, but you"d need to bond the chassis that the dryer come make the acceptable to existing NEC password (Article 250.140). This have the right to be a safety hazard if excellent incorrectly, and also it might or might not void the warranty on the dryer.
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Since her dryer is set up to usage a 4 prong receptacle, the optimal systems would be to update the receptacle to a 4 prong (NEMA 14-30R if ns remember correctly). However, this will need you come run brand-new cable come the receptacle, because you"ll require a cable with a ground. Depending on the attract of the dryer and also the length of the run, you"ll either need to pull brand-new 10-3 /w ground or 8-3 /w soil cable.
TheEvilGreebo pointed out, you may be able to simply swap out the cord on the dryer for a 3 prong version. Examine the manufacturers documentation come verify the procedure, and to make sure your version supports this.
This schematic for an electrical dryer might help you understand exactly how the dryer might be wired (depending top top make/model/manufacture date).
the easiest thing to execute is to change the outlet, cable a new outlet in, assuming castle both usage the same form of cable (typically 10-3). You upper and lower reversal the circuit off prior to you perform it, that course. Much easier than trying to find an adapter (and more than likely safer)
Dryer cords room designed to it is in replaced. It"s apparently even common for them to ship without a cord so that you can install the appropriate cord for your outlet. Residences built prior to 1996 frequently need a 3-wire cord through a NEMA 10-30 connector. Houses developed after 1996 (in the US) commonly have a NEMA 14-30 outlet, and also will need a 4-wire cord. (FWIW, a brand-new cord seems to run roughly $11-$25 (as of 2015), relying on how lengthy you need it and also where you buy it.)
Whirlpool has comprehensive wiring instructions for this reason you can make sure you room wiring it properly. Other manufacturers will likely have similar instructions.
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Home Depot has some share wiring instructions. Contradictory to people here, they recommend no updating the outlet come NEMA 14 yourself, yet having a licensed electrician perform it if that"s the way you want to go.
Having a different ground sounds choose a an excellent idea at first, however if her dryer is favor mine, it"s not going to make a lot of difference. Mine came v a 4-wire cord, but ground and neutral to be wired to the exact same terminal internally. I first thought the was crazy, however it is continual with the installation accuse (although the is feasible to save them separate). So, relying on your dryer, you may not get a different ground even with a 14-30 connector.