hi,
We have a 2018 3920FB, which has a full bathtub in the front. I am guessing this is the reason for an on demand water heater. We have the Suburban Nautilus IW60 on demand water heater. We have been recently having problems getting and maintaining the flow of hot water. About 90% of the time we don't get hot water and when we do the flow last for only a few minutes. I went on YouTube and found only one video about a spider web in the venture. That is not my problem. So took the side panel off the water heater and voila hot water each and every time. Putting the side panel back on and once again no hot water. I am thinking there is a safety device malfunctioning but as I have no manuals there is no way to test. I am lost and need help...any ideas?
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