Dryer Cord will not go in all the way
I agree with Warloki &amp; Michael K, I never plug something in other than a meter to verify the voltage. 4 prong plugs can be a bugger. I would turn the power off and pull it out then try reinstalling by pushing hard and rocking as you push it may take quite a bit of force. I am a big guy and have had trouble getting them to go in. Pull it back out noticing if you made any progress and try again. After 3 or 4 attempts it will probably go in. Once it is seated then turn the power back on. I say to turn the power off because I have ended up touching the prongs on these type of plugs more than once over the years so if I have trouble inserting the plug the breaker gets turned off.