We have a brand new 2021 Transend Xplor. We're testing all the systems before heading out on our first trip.
For some reason, the potable water pump hums, but does not deliver water to the faucets.
I'm wondering if there's a valve near/at the pump or within the water system that we need to open that we are unaware of? The dealer is NOT returning our calls regarding this issue.

Here's a little additional info:
- We flushed the system of anti-freeze from the winterization with success.
- We tested the city water AND the hot water heater, with success.
- We have a 3-valve water heater system. The valves ARE in the proper position.

Thank you in advance for any insight.