Thanks for Choosing Just Answer....
THIS should be the service manual for this series... I would look at the fan first since it started very slow and made a noise, the bearings may have seized up, I believe on these units there is a tiny spot you can put a few drops of oil in. Checking the selector switch is also a very good idea, the capacitor was replaced so probably not the fault... I hope that manual helps, if you have any other questions or concerns please feel free to contact me... I feel your pain on this one, I know some of these basements units are a royal pain to pull out..
Thank You!!! Please hit ACCEPT for my efforts, Positive feedback and BONUS welcomed!!!
NO Luck finding this particular model, I went through all the stuff I had laying around... So at this point I am going to Opt Out, this will allow other RV experts to respond, I want you to have the correct information, I understand it is crucial for troubleshooting this unit... I do not know when another RV expert will respond...