Help with 2019 Ventana 4369

[Webz]

I had the same problem. It was a bad pump. I bought replacement from US Solar. Until you get a new pump, use the bypass switch on top of the silver box. You should get heat in both zones.
Newmar wants over $300 for a new pump.
ITR, the maker of the Oasis system, wants over $200.
US Solar sells their pump for $85.
I've been using a US Solar pump over 2 months now and it has worked great. US SOLAR PUMPS

 

[Greg108]

With appreciation for Sealyn, Jim Texas Clodhopper, Rich W., and John WebZ, I managed to keep the heat going and have a good time in the cold of Zion NP. Thank you all for your help. All the best, Greg