Tioga propane light blinks green, heater not functioning

Just saw your reply, Ed, after replying to Gene. Interesting - I have been uncertain of if the failing house batteries caused the monoxide alarm to misfire, or if the failing alarm drained the batteries to zilch. Pretty sure it was the later. The alarm lights up since putting the new batteries in, but the test button produces not a sound. But anyway, the carbon monoxide alarm is not my concern right now. It’s getting the LP propane detector to stop blinking green.