I finally got around to wiring up my fuel vapor detector and CO monitor..

Now I'm having problems with false alarms from the fuel vapor detector.

It is suppose to detect gasoline and propane. I have not gasoline aboard at
this time (will have gas for the dingy OB while cruising) and the only
propane is in a tank on the stern rail for the MAGMA BBQ. Not even hooked up
at this time..

Seems the alarm goes off after I run my diesel engine for about 20 to 30
min. However this false alarm happens about 10 min. after I secure the
engine.

The Fuel Vapor Detector sensor is located in a dry location about 18 inches
from the bottom of my engine room bilge sump. This is the lowest point in
the boat for gas or propane fume to accumulate.

I can't imagine why I'm getting fumes off my diesel that would set off the
alarm. The alarm is intermittent and continues to go off/on for about 30
min. or until I pull the fuse.

I have tried running a elect fan, directed towards this bilge area, but it
doesn't seem to purge any fumes. I have checked to make sure the sensor is
dry, no loose connections, etc.

Could this be the result of a bad sensor??

Steve
s/v Good Intentions