'Sensor' is being covered with hairspray, other aerosols etc.
After a while the 'sensor' is shot
Your title is CO/LP and then in your post you talk about CO
IS this a combo CO/LP that is hardwired to rv battery?
I hate combo CO/LP because each has differing mounting requirements.
LP should be down low....close to floor as that is where propane settles
CO should be wall mounted about 1 foot down from ceiling.
Can you remount elsewhere vs next to bathroom.
Or is hairspray really necessary..........7 yrs full time GF never used any. Cut her hair short/sassy ----- wash/wear :B