I have a 2017 Windsport 29M. Hot water works with propane but when trying to use 110 it wont get hot or last time out it would surge between a little warm and cold but not hot enough to shower in. When hooked up to shore power i can hear a buzz coming from the unit when standing outside next to it but it doesn't ignite. Checked the 2amp fuse on the unit it is fine. Is there another fuse in the panel under the bed? Any help would be greatly appreciated. Thanks!