Replaced the drain hose and now during washing water tends to back up while draning out the sewer pipe.

Hi Joe

Is that pex pipe on the right your water supply to the washer?

Your sewer gas smell I believe can be eliminated by putting a P trap in the drain PVC line.

(EDIT)
Where the drain hose from the washer hooks into the PVC pipe is NOT airtight which would allow the sewer gas back into the laundry room!

(EDIT EDIT)
If there is a P-trap in your outflow pipe, the only place left for grey water to collect (and stink) would be between the washer and where the waste hose goes into the drain. We've had to use a little bit of bleach on occasion when we haven't used the washer for a bit.
Hope this helps
-Steve

The drain pipe that your drain hose goes into is more than likely the problem. The drain pipes should have a p trap which looks kind of like an S- shape the water stays in the trap preventing the smell from backing into your home . If there is none, install one.

make sure the drain pipe out of the machine is installed at the right height per owners manual and the stand pipe isnt plugged with debris which will back wash into the pump area of machine,also make sure the pipe and drain hose arent sealed they need outside air or the system will vapor lock per say and siphon back into the machine,overall make sure there isn't and obstructions to the drain from kinked hoses or debris in the drain lines,flush out all lines with fresh water and make sure lines take all water and dont back-up during rinse-out

Either the drain hose is too far into the drain or drain hose is too tight in the drain . Make sure the drain hose is NOT taped to the drain (to keep the drain pipe from overflowing ) All of these will cause a syphon problem , where water will be "pulled out" of the machine by your sewer line , as water is filling your machine for wash (usually rinse cycle).

it's being sucked out by siphoning through your sewer pipe .Probably a siphon problem . Check your drain hose to make sure hose is not stuffed too far down drain and air can get between the hose and the drain pipe . If you have tapped the hose to the drain to keep water from coming out the drain pipe , go to home depot or an appliance parts house , and get a siphon break . When a washer fills , but water level doesn't rise in the machine ,

not draining your washer at all, pump may be bad or no power to pump, take the drain hose out of the "stand-pipe" where water enters the sewer drain, and lower to floor and see if water drains by gravity if only slowly your pump or hose may have a slug of crud in it blocking drainage to sewer pipe

Hi, If the water is going out the drain hose, raise the drain hose so that its highest point is as high as the top of the washer. This should take care of the issue. If the water is coming out of the bottom of the machine, tip it back against the wall and look under the washer to see if a hose has broke or came loose.
If I can assist you further, please let me know.
Vic

your drain hose is in the drain tube to far, pull out the hose and only put it in about four inches into the pipe. when you drain line is in to far the hose get a syhpon effect from your sewer.

The top of the drain pipe that the washing machine drains in to should be about 3 feet off the ground. If the sewer pipe is higher than that you can either get a longer hose, or drain it into a sump with a sump pump that pumps it into the sewer pipe. If you don't have a sump, first try the longer hose and make sure it drains to a point higher than the sewer pipe (that would be the easiest) or cut a hole in your floor and put in a sump and sump pump (the most difficult).

Disconnect from electrical supply. Get someone strong to tilt machine to get fluid out off bottom tray.Mop & dry floor....try now