Last month at a FROG Rally in Kerrville, TX, our propane detector went off and would not stop until I pulled the fuse. Any time I put in a fuse, 3 AMP, it would go off. The propane is shut off at the tanks so I am sure it was a false alarm. Someone at the rally told me that it is not uncommon for them to fail? If that is correct? Do I just buy a replacement and remove and replace? It has three wires that are different colors so it seems to be an easy job? They have the same model as the broken one online at Camping World. Thank you in advance for you assistance.