Propane leak sensor

[NY Camper 86]

Wonderful! Thank you! You all have been super helpful!

[jpharley]

RV dealers usually sell them too. That is where we purchased our replacement.

[Old-Biscuit]

LP Detector Sensor is behind the small opening on front of detector

You should be able to smell propane if sensor is going off

Alarming at 4AM is typically due to Low Battery Voltage....lp detector alarms on that also. They are wired directly to battery
What appliance are you using at 4am on propane........stove/oven, fridge, water heater, furnace OR none of them at all?

Should be good 5-7 yrs BUT as with any electronics they can be defective.
Also sensors can get desensitized by use of other products.

Just buy new and replace it.