The other night our neighbor and wife were watching TV with the electric fireplace on. All of a sudden flames shot out from behind the TV ( fireplace is below the TV). He ripped the TV off the wall and grabbed the fire extinguisher. It didn't work.
Bottom line everyone that RV's should be made aware that the fire extinguisher that comes with your RV...settles and does NOT work when needed. And they have already settled before you even buy the RV.
Either shake that darn thing routinely or buy a commercial grade extinguisher.
I didn't know this until the fire department at an RV ralley showed us all. They also told us almost all the RV fires they have been called out for, the owners fire extinguisher did not work when they went to use them to put out a small fire that ultimately resulted into complete loss of their RV's. :(