The unit is 4 or 5 years old. It is the one that came on the coach.
The unit is a Norcold model-1201LRIM
The serial number on the unit is(NNN) NNN-NNNN/p>
I hope this helps.
I just got off the phone with the RV service center and we have some testing to do. I appreciate your assistance and have used you before and hope to use you again sometime down the road.
John A. Manno, Jr.