drier is easy to replace ... disconnect the two lines and unbolt the bracket and disconnect the low pressure switch and remove. may need to remove the battery also to get to this
once the dryer is out remove low pressure sensor and o-ring and install on new dryer, get 4 green AC o-rings for the two lines and reinstall
also I would plug it back in first and try some uv die with a black light to pin point a leak if there is one
