coolmom42 wrote:
If this is indeed your propane alarm going off, and not the CO sensor, it can be set off by a few things besides propane. I'm fairly sure ammonia from the fridge would set it off, and possibly H2S from the water heater bacteria or bad batteries.
That's true, too. Things like dog farts and sewer gas will also do it. But whatever it is, I'd urge the OP to diligently track down the problem, because while some causes are benign, others are deadly.
coolmom42 wrote:
But could be there is a small propane leak... time to trace the fridge supply line back and tighten all the fittings, maybe check with some soap spray for leaks.
One more use for that spray bottle of good old Windex!