UPDATED: Carbon monoxide alarm goes off while baking in oven

When my parents bought a used class B my sister and I both smelled propane in their coach. She bought them a detector. When we went camping with them a few weeks later, she asked why it wasn't installed. My Dad told her the darn thing was defective. Seems when he installed it, it kept going off.

So DH and BIL got busy and found the leak. . . a gas line under the motorhome. Loose fitting. Tightened it up and installed the detector. All was well.

Dale