dtzackus wrote:
Our rig is a 2012, I hope they last longer than 3 years....
I agree with you, hopefully they last longer than three years. Since you pulled it try looking at the back and see if there is an expiration date. Also you might try to figure out if the CO or the LP alarm is going off.
Since both alarms need LP to sound you could turn off the gas at the bottles and then light a stove burner and let it burn out. Now turn on the gas only and let it sit that way for the night. If the alarm goes off you know you most likely have a propane leak.
Also when you say it goes off at 4am it makes me think your batteries are draining and setting it off. You might want to find a way to check battery voltage in the middle of the night if the alarm sounds.