Good luck with yours. I got the 3400e...twice. Both had the same problem. When starting up, especially in the first 15 minutes of washing, it would not re-start if the trigger was released. Had to be totally unplugged (or GFI tripped) to re-set and allow to operate. Lesson learned. For higher pressure jobs I got a gas washer. For light duty, a $99 Ryobi electric.
Waiting to receive a 3400e, but reading reviews a reviewer stated while using gauges it put out 2900 PSI, but after a hour of use and break in, it put out 3400 PSI, on the 3400e model. I ordered a good no kink hose on amazon less than $40. I should've ordered a 100' hose. Nasty rode