Hi, my washer keeps giving the lf code. I’ve replaced the water level pressure switch, the water inlet value, new water hoses, checked the screens- all good, The drain should be working fine- 39” high drain hose with only 4” in drain receptacle. I’ve noticed the boot seal is leaking water out the front- could this be the problem? I don’t want to buy this part if the error code is coming from some other very expensive part. Thanks!

The boot seal leaking is not enough of a leak to cause a LF error it would have to be leaking at a faster rate than the washer can fill for a leak to cause that error. If you have replaced all the parts you say you have and still get the LF error and you are certain you have proper water pressure to the machine then the main control is bad. You did not give us your model number but some models do have a flow meter if yours has a flow meter then that is the problem.