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Alex Hayley · 06-17-2007, 03:38 PM

The part numbers I have are:

original unit 3866118
new unit 19556-010

The new unit is a series 4. I believe that the old unit is a series 3. Can anyone verify that for me? I have attempted to search for something that says so but no luck so far. If the original unit is a series 3 then I have an obvious problem.

06-17-2007, 03:38 PM	#14
Alex Hayley Registered User Join Date: Jul 2000 Location: NC Posts: 987	Re: posi install difficulties The part numbers I have are: original unit 3866118 new unit 19556-010 The new unit is a series 4. I believe that the old unit is a series 3. Can anyone verify that for me? I have attempted to search for something that says so but no luck so far. If the original unit is a series 3 then I have an obvious problem.