dick seiders
Well Known Member
Two weeks ago my dynon stopped telling me how much fuel was in the tank (page 1 showing from 15 gal and less). I still had the reading of page 2 so wasn't very concerned as I believe my capacitor sending unit might have failed. I checked connection on tank and it was secure, but no info on dynon page 1.
Today following a brief .5 hr flight the alarms started blaring as I shut engine down at hanger. The alarms indicated low fuel psi, and low oil psi. I was unable to shut them off, as the dynon 180 (now on backup battery power) failed to respond to my pressing the turn off (rt button). After about two minutes I managed to shut the dynon down while it was on battery power.
I thought about what might be going on, and concluded the sensors were acting up as they sometimes do. My friends standing by had no other conclusions.
I started the engine again to test for oil psi , but ran it only about 6 seconds, and received no oil psi indication. Both the oil psi and low fuel psi alarms again fired up, and this time I had no trouble turing off the dynon which jumps to battery power immediatly after turning off master. Should I have run the engine for the full 12 seconds allowed w/o oil psi? I removed spark plugs and spun prop by hand for about 15-20 sec. hoping to get some indication of oil psi, and got none. If I operate the facet pump I show about 1.8 psi on fuel.
What is going on here? I looked at EMS settings and all appear as originally set up. Any assistance greatly appreciated.
dick seiders 120093
Today following a brief .5 hr flight the alarms started blaring as I shut engine down at hanger. The alarms indicated low fuel psi, and low oil psi. I was unable to shut them off, as the dynon 180 (now on backup battery power) failed to respond to my pressing the turn off (rt button). After about two minutes I managed to shut the dynon down while it was on battery power.
I thought about what might be going on, and concluded the sensors were acting up as they sometimes do. My friends standing by had no other conclusions.
I started the engine again to test for oil psi , but ran it only about 6 seconds, and received no oil psi indication. Both the oil psi and low fuel psi alarms again fired up, and this time I had no trouble turing off the dynon which jumps to battery power immediatly after turning off master. Should I have run the engine for the full 12 seconds allowed w/o oil psi? I removed spark plugs and spun prop by hand for about 15-20 sec. hoping to get some indication of oil psi, and got none. If I operate the facet pump I show about 1.8 psi on fuel.
What is going on here? I looked at EMS settings and all appear as originally set up. Any assistance greatly appreciated.
dick seiders 120093