Onan 5500 Stops After 15 Minutes - Momentum 351M

[Robbrown2]

I have a 2018 Momentum 351M and I am having a few issues with it, one of which is the Onan 5500 generator shuts off about 15 minutes after being started cold. Once it is warmed up, it only runs for a few minutes. I had a mobile RV repair place look at it and they replaced the fuel pump, but that wasn't the problem. I believe it is giving an oil pressure error code. The dip stick showed halfway between low and full, but I added oil during troubleshooting and brought it up to about 3/4 between low and full. It only has 30 hours and I have only put about 10 hours on it since I purchased it new, so it has the same oil from purchase. The issue started after sitting stored for a few months.

Has anyone experienced a similar issue or know what may be causing the issue and how to fix it?

[howson]

I have a 2018 Momentum 351M and I am having a few issues with it, one of which is the Onan 5500 generator shuts off about 15 minutes after being started cold. Once it is warmed up, it only runs for a few minutes. I had a mobile RV repair place look at it and they replaced the fuel pump, but that wasn't the problem. I believe it is giving an oil pressure error code. The dip stick showed halfway between low and full, but I added oil during troubleshooting and brought it up to about 3/4 between low and full. It only has 30 hours and I have only put about 10 hours on it since I purchased it new, so it has the same oil from purchase. The issue started after sitting stored for a few months.

Has anyone experienced a similar issue or know what may be causing the issue and how to fix it?

Robbrown2--I see you are new, so FYI duplicate threads are not allowed on the forum. I'm closing this thread and leaving the other one open. If needed we can "tag" a GD rep from the other thread.

-Howard

[Robbrown2]

Ok...thanks. I thought the Ask GD section went to GD employees. Thanks!