If you are asking this question I assume that the outlet/plug is hot enough to be noticeable and it is likely a problem you should address immediately. As a start remove the plug from outlet and see if the outlet is still hot. If so, turn off the breaker controlling the outlet. Remove outlet from box and see if there is evidence of a burned or loose wire. If there are no obvious problems and the outlet is still hot with nothing plugged in, call an electrician; or if you know how replace the outlet with a 20 amp outlet. Otherwise it could be a faulty plug which you should replace. The only other thing that might be wrong is a faulty breaker that isn't tripping on an over current condition and the connected device is drawing too much current.
Yes.
15 amp outlet on a 20 amp circuit.
Absoluteyl not.
Yes, no problem whatsoever.
Can you change the plug? Yes. Should you change the plug? NO!!! The 20 Amp plug is just that a 20 amp plug. The plug you want to change to is a 15 amp plug. The ramifications are pretty easy to understand. The 20 amp load will overload the receptacle for sure, and likely will overload the branch wiring and circuit breaker if they were designed for 15 amps. This could cause at the least your home wiring to get brittle and eventually short out. It could also cause a circuit failure, leading up all the way up to a fire. My recommendation is to move the canopy to a 20 Amp plug or have a licensed electrician install the proper breaker, wiring and receptacle. See view discussion below.
What is a 20 amp female transfer switch? I have never heard of such a device.
No.
Yes, as long as the plug and receptacle match in pin configurations, it can be done.
Yes, as long as the plug and receptacle match in pin configurations, it can be done.
A plug and play 15v amp circuit is one that you can simply plug in. It has a three pronged plug so no special wiring is needed.
A 15 amp receptacle is protected by a 15 amp breaker. The 15 amp breaker will trip on any current over 15 amps. So if the 20 amp machine draws a full 20 amps, then the answer is no. Due to some operations of machines they will not draw the full nameplate amperage until they reach a certain point in there cycling. The machine may run at the start but when it reaches that point it could trip the breaker. If the machine is not hardwired but plugged in, you could not run a 20 amp machine on a 15 amp receptacle, due to the different pin configurations on the plug cap.
Yes is ok as long as you increase the size of the plug .I use dryer plugs( 30 amp )all the time on equipment that came with smaller plugs (20 amp).