Converting A 220v Plug To 110v Plug

I have a 220v Microwave, and a 220v dryer, that came with a four prong plug cords attached (they were used in newer homes).



The current outlets are three prong outlets and there is absolutely no way to run new wiring.





Just need to change the cords on the microwave and dryer to the old style three prong ones?









Opinions?
      

I have a 4 prong 220v outlet in my garage and would like to convert it to a 3 prong outlet for my welder and compressor.



Do I just put a wire nut on the neutral and tuck it back in the box?  Then install the new 3 prong outlet using the two hots and ground?



Thanks.
      

I am in the process of installing a submerisble pump into my well, but I have a few questions I'd like answered first.



The pump is a 1HP, 230V pump with 8.2amps and KW 0.75.  It is rated at 12/2 w/ ground. 



1) Is there any reason I shouldn't install a 230v wall mounted switch to turn this on/off if I want to kill the power.  For now a pump start will control it for my irrigation system, this would just be in addition if I ever wanted to shut things down and not have to rely on using the breaker, which I understand shouldn't be used as a switch.



2) What about installing this on a plug, so that I can plug it into a receptacle vs. hardwired.  (*I'll explain my reason later)



3) My understanding is 12gauge wire is rated for 20amp, but it looks like the owners manual calls for a 25amp fuse.  Should I use 20amp or 25amp?



*The reason I ask about the switch and the plug is because I plan on using some wiring that is already in place.  I already have 12/2 w/ground installed in the location of the pump start.  It is currently wired for 110v as it was placed there for a 3/4hp jet pump I planned on installing, but ended up going with a cased well instead, so I figure why not utilize the existing wire, but switch it to 220 instead of 110.  Basically, swap the 20amp 110v switch out for a similar rated 230v switch and replace the receptacle with a 230v receptacle and just plug this pump in. 



I question the use of the plug because I thought I had read somewhere it was ok to use one, but when unpacking the pump last night, I thought I read never to install it on a plug, so now I'm unsure.  Why would they not want it on a plug?  I guess it's not a big deal as I can always run wire into the j-box, but I hate using pigtails if I don't have to.



Thanks for any info on this...heading to the parts store in a while to grab the fuse and anything else I need.
      

Hello Guru's,



Can I throw a  standard 3 prong 110/120 receptacle on a 15A 2P 220v circuit? I need to run that 15A 2 pole 220 to a switch for central AC air handler service. I'd like to run to a switch with and outlet right next to it for service and still comply with NEC Code. This way, if service tech ever needs to plug a vacuum in or some other device, he'll have a something there. Is this possible or is that too powerful for 220v even though it's 15 Amps? Or should I just run a standard 15A 14/2 circuit.



Thanks



~S
      

I have 3 bedrooms on 15 amp circuits, 14 gauge wire. Original wiring is one bedroom is on one circuit and the other 2 bedrooms on another circuit. The wall switches in each switched the top half of an outlet in each room. I converted the wire at the wall switch to a 110V feed from the outlet and ran 14/3 from the switch to the ceiling for a ceiling fan. I replaced the outlets since the jumper was cut to isolate the 2 plug ins for switching. Is this whole scenario code compliant?
      

Hello everyone,I have a question about a forklift battery charger i bought. Ok,its an exide forklift battery charger 36 volts. It weighs a ton so i am having to run a 25 foot extension cord to it. My question is,my 220 wall outlet has three holes so i went to lowes and made a 220 extension cord. Now i get to the ac cable coming out of the charger that hooks to the extension cord(plug was cut off),there are 4 wires coming out of the cable green,white,red, and black......the guy at lowes said i could buy a 3 prong plug for it to plug into the female end of the extension cord because one of the 4 wires is probably neutral and i wouldnt have to hook up but the green,white and either the red or black.....is he right? Inside the charger the red,white and black all go to big fuses and green to ground. Also above the fuses it says "factory set to 480 volts ac". I guess my question is,will this charger only work using a 4 prong wall outlet(mine only has 3) and with 4 prong plug hooked to cable coming out of the charger itself or is the guy at lowes right in saying that only the red OR black wire has to be used? Sorry if this is confusing but ive searched and searched online for 3 days and havent found anything. Thanks in advance for any help-Kevin
      

Installing a new cook top; the original plug was installed at the vent hood.  How do I move the plug to underneath the cabinet without tearing out the wall?
      

I'm trying to figure out how exactly this should be redone... right now there is a NM cable going from the panel though the rim joist and outside straight down into the ground and out about 2 ft into the sump well then it jus dangles there with a female plug end connected to that which the sump pump then plugs into... well this actually shorted out the other night and created a wonderful noise and sparks...



how should I redo this? right now its not even GFIC... just straight into a 20 amp breaker...



I was thinking put an outside receptical on the side of the house run that straight thorugh the back of it into the rim joist and to the panel... have the outlet on that a GFIC outlet then run a underground line from that to the pump using UF cable with a similar female plug end inside the well (the well is about 11 ft deep and the plug is about 1 ft from the top right now... then that would just plug into the GFIC outlet on the side of the house... that outlet would of course have one of those clear enclosures around it that is water tight...



suggestions? comments? code violations?
      

We just got a used hot tub.  It ran fine where we purchased it but since we got it home, it has not run.  We installed a new breaker for the hot tub and an GFCI outlet outside.  The hot tub inself has a GFCI installed on it.  If we plug it into the GFCI outlet it runs for a few seconds and either trips the circuit inside or the hot tub.  Is it necessary to have a GFCI outlet outisde if the hot tub has one?  We are thinking that this may be our problem..redundancy.  Can we install a regular outlet outside instead of the GFCI outlet?  When we plug it into a regular outlet it runs.  We want to make sure that this is safe before proceeding.
      

I have a 30amp wall socket in my garage, connected to two 20amp fuses in my garage sub box. I bought a 60 gallon air compressor rated 230v 15amp (non-reversible???). I am under the impression that I can use this compressor with the socket I have. The compressor did not come with a plug but did have the wires. One red, one green, one white. The plug I bought to the match the socket has instructions for one black wire (hot) one green (ground) and one white (neutral) I guess my question is, would the red wire be my hot wire? Does everything else sound ok?