Macro is just not doing what I want it to as in filtering

Hi

I have a macro that deletes matching entries but it dont seem to be doing what I want it to and I have found out if I filter by individual machines then it works.

The macro I have at the moment is shown below. Also attached is the workbook that its in.

What im trying to do is set it up so it filters it out by machine before the macro runs and then moves onto next machine and carry's on until it gets to and runs the last machine. The machine number will always be in column A of both sheets

Any ideas?

Option Explicit

 Sub DeleteIdenticalRecordsFromTwoSheets()
Dim ws1 As Worksheet, ws2 As Worksheet
Dim lr1 As Long, lr2 As Long, i As Long
Dim x, y, xx(), yy(), dict1, dict2
Dim delRng1 As Range, delRng2 As Range

Application.ScreenUpdating = False

Set ws1 = Worksheets("Sheet1")
Set ws2 = Worksheets("Sheet2")

lr1 = ws1.Cells(Rows.Count, 1).End(xlUp).Row
lr2 = ws2.Cells(Rows.Count, 1).End(xlUp).Row

ws1.Range("A1:D" & lr1).RemoveDuplicates Columns:=Array(1, 2, 3, 4), Header:=xlNo

lr1 = ws1.Cells(Rows.Count, 1).End(xlUp).Row
x = ws1.Range("A1:D" & lr1).Value
y = ws2.Range("A1:D" & lr2).Value

Set dict1 = CreateObject("Scripting.Dictionary")
Set dict2 = CreateObject("Scripting.Dictionary")

For i = 1 To UBound(x, 1)
    dict1.Item(x(i, 1) & x(i, 2) & x(i, 3) & x(i, 4)) = ws1.Range("A" & i).Address
Next i

For i = 1 To UBound(y, 1)
    dict2.Item(y(i, 1) & y(i, 2) & y(i, 3) & y(i, 4)) = ws2.Range("A" & i).Address
Next i

ws1.Columns("E").Clear
ws2.Columns("E").Clear

For i = 1 To UBound(x, 1)
    If dict2.exists(x(i, 1) & x(i, 2) & x(i, 3) & x(i, 4)) Then
        If delRng1 Is Nothing Then
            Set delRng1 = ws1.Range(dict1.Item(x(i, 1) & x(i, 2) & x(i, 3) & x(i, 4)))
        Else
            Set delRng1 = Union(delRng1, ws1.Range(dict1.Item(x(i, 1) & x(i, 2) & x(i, 3) & x(i, 4))))
        End If
    Else
        ws1.Cells(i, 5) = "Missing"
    End If
Next i

For i = 1 To UBound(y, 1)
    If dict1.exists(y(i, 1) & y(i, 2) & y(i, 3) & y(i, 4)) Then
        If delRng2 Is Nothing Then
            Set delRng2 = ws2.Range(dict2.Item(y(i, 1) & y(i, 2) & y(i, 3) & y(i, 4)))
        Else
            Set delRng2 = Union(delRng2, ws2.Range(dict2.Item(y(i, 1) & y(i, 2) & y(i, 3) & y(i, 4))))
        End If
    End If
Next i


If Not delRng1 Is Nothing Then delRng1.EntireRow.Delete
If Not delRng2 Is Nothing Then delRng2.EntireRow.Delete

lr2 = ws2.Cells(Rows.Count, 1).End(xlUp).Row

y = ws2.Range("A1:D" & lr2).Value

For i = 1 To UBound(y, 1)
    If dict1.exists(y(i, 1) & y(i, 2) & y(i, 3) & y(i, 4)) Then
        ws2.Range("E" & i).Value = "Duplicate"
    End If
Next i

Application.ScreenUpdating = True
End Sub