Re: 2003 U320 PPI Questions Reply #75 – May 02, 2017, 11:15:08 pm Quote from: Pamela & Mike – May 02, 2017, 09:45:57 pmThe check valve for zone 3 may also be stuck closed. A gentle tap on the valve body may get the flapper loose.Pamela & MikeThe inspector tapped but no joy. No biggie, we will figure it out.Mark Quote Selected
Re: 2003 U320 PPI Questions Reply #76 – May 02, 2017, 11:19:49 pm Quote from: Old phart phred – May 02, 2017, 09:31:01 pmOr could just be "air bound" and needs vented.This will be the next try.But...... only after I get it home. Just bought the unit! The seller was good to his word and we negotiated a price with which we're both happy. I made a 2 new friends in the process, the owner and his friend who helped him sell it. And then there's all of y'all. Thanks for letting me share this experience and for all your helpful and timely suggestions. Gonna get a few hours sleep and start driving east tomorrow.BTW, had to replace the 3 engine batteries today. MOT was great. Worked me in even though they were swamped.Note new signature below.Mark Quote Selected 8 Likes
Re: 2003 U320 PPI Questions Reply #77 – May 02, 2017, 11:20:08 pm Quote from: Mark Duckworth – May 02, 2017, 11:15:08 pmThe inspector tapped but no joy. No biggie, we will figure it out.MarkSounds like your inspector has picked up some Rudy knowledge, a good thing for you. Quote Selected 1 Likes
Re: 2003 U320 PPI Questions Reply #78 – May 03, 2017, 12:49:57 am Congrats, hope things stabilize on your trip home, and they may well with use and grade changes, if there is air in in your system. Quote Selected 1 Likes
Re: 2003 U320 PPI Questions Reply #79 – May 03, 2017, 08:06:15 am Mark, congratulations!I hope your drive home is uneventful and no gremlins show their ugly heads.Or you could just leave your new coach at MOT along with a blank check and wait for them to let you know when everything is fixedâșSteve Quote Selected 1 Likes
Re: 2003 U320 PPI Questions Reply #80 – May 03, 2017, 11:27:17 am To check if it is a circulation pump issue do a "grounding wire check" on Aquahot for that circuit. Maybe pump is shot . The new style pumps that are replacing the old ones are in my mind useless and do not pump the same volume as old ones. I replaced 2 of them on friends CC while in Mexico visiting and proved they do not circulate as good as old ones. A Hot tech said should be same. The old pumps had disintegrated with cooling fluid and I feel that is why they changed makes. Also check valve for that circuit may be not holding. All simple to check and replace. It was necessary for us to remove radiator units from the CC and flush out lines as crap was in system. Not an easy job as I had to dismantle the passenger side dash to get to one of them. Learnt quite a bit though.JohnH Quote Selected 1 Likes
Topic: 2003 U320 PPI Questions