Community Forums

MikeGriffin · 02-22-2019, 04:54 PM

I can't explain this. Can anyone else?

Setup:

All three A/C's are on. Zone's 1 and 2 are set ABOVE the current temperature, so they're not on. Zone three is set BELOW the current temperature.
AGS was ENABLED and set to turn on with Temperature (EXT sensor)
Full 50A service coming into RV. Both legs operable.

What happened:

Zone 3 tried to come on (hourglass showed). It didn't - until the generator turned on. This shouldn't have happened because there was Shore Power.

So I turned AGS OFF. Waited and Zone 3 got the hourglass again. A few seconds later, the light on the generator start button began to blink and the genny turned on. Yes, with AGS OFF.

I was able to repeat this. Turned off generator. Verified incoming shore power. Ensured that AGS was OFF. Zone 3 got the hourglass and the generator started.

As an experiment....

I turned Zone 3 off. Made Zone 2 start, which it did without turning on the generator. Then turned Zone 3 back on and it came on normally (without starting the genny).

So how in the world can the generator come on, obviously to supply power to Zone 3, if 1) there is adequate shore power AND 2) AGS is OFF?

Dutch Star Don · 02-22-2019, 06:08 PM

I don't know if this helps, but I was testing the AGS using the TEST feature. The generator came on, I was satisfied that it worked and shut it off. A few minutes later, it came on again. It did this one more time, so I let it run for a few minutes and then shut it off and it stayed off. My guess, there was a cycle of time it needed to complete or would keep starting. I never checked the Manual to verify this,

10 fan · 02-22-2019, 07:38 PM

While reading thru the link Bruceisla posted (#6) in "understanding the 3 zones on the AC's" It showed a certain thermostat that connects with AC's that can be set at the dip switches to start the generator. Last week I was on the roof checking my AC before I buy easy starts and I saw mine was in the off position for that setting.

MD-Keith · 02-22-2019, 09:17 PM

Several years ago when I had a similar problem in my Ventana when the generator started a few times with the AGS off. As an emergency measure I disconnected the wire harness to the genny since we leave the coach unattended for long periods of time. Ultimately, I had the AGS module replaced which solved the problem.