The smaller motorhome in my signature has a 5500w Generac generator that is not producing current at higher loads. The generator starts and runs fine when using the coffee maker or the microwave, but when I turn on the AC, the compressor will run for about 10 minutes and then the generator stops producing any current to the motorhome but the Gen does stay running. If I shut the Gen off and restart it, it starts producing current again as long as I don't run the AC more than a few minutes.Why would the Gen stop power after 10 minutes of using the AC?

Went to a rally in Cashmere WA it was a 100 degrees the whole time. Every one that had 5500 generacs would shutdown when the AC was running and air temp got over 98 degrees. Turns out there is a high temp oil switch maybe yours has same problem. Almost all the units were 98-2004

akrv wrote:Went to a rally in Cashmere WA it was a 100 degrees the whole time. Every one that had 5500 generacs would shutdown when the AC was running and air temp got over 98 degrees. Turns out there is a high temp oil switch maybe yours has same problem. Almost all the units were 98-2004That's a good thought as it has been pretty hot here. Did the Gens quit running or stop producing power? Mine keeps running but power output stops.

Since it continues to run, it sounds more like the ATS than the overheat shutdown. Does anything else other than the AC continue to run? Is there a code on the panel?

Low oil level or pressure, and over temp will shut the engine down. That’s what those two sensors are protecting. Maybe a self-resetting circuit breaker somewhere?:):)

way2roll wrote:Since it continues to run, it sounds more like the ATS than the overheat shutdown. Does anything else other than the AC continue to run? Is there a code on the panel?When the Gen cuts power, nothing in the coach works. When this happens, I checked with a meter and there is no power to the ATS. The odd thing is that when I personally shut down the Gen and then retart it a minute later, I have power to the coach again. I'm wondering if worn brushes or contacts would do this when a heavy load is put on the Gen.

Generac generator quits power output...UPDATE | Good Sam Community

14 Replies

NRALIFR
Explorer
Jun 17, 2019
Low oil level or pressure, and over temp will shut the engine down. That’s what those two sensors are protecting.

Maybe a self-resetting circuit breaker somewhere?

:):)
way2roll
Navigator III
Jun 17, 2019
Since it continues to run, it sounds more like the ATS than the overheat shutdown. Does anything else other than the AC continue to run? Is there a code on the panel?
hotjag1
Explorer II
Jun 17, 2019
akrv wrote:
Went to a rally in Cashmere WA it was a 100 degrees the whole time. Every one that had 5500 generacs would shutdown when the AC was running and air temp got over 98 degrees. Turns out there is a high temp oil switch maybe yours has same problem. Almost all the units were 98-2004

That's a good thought as it has been pretty hot here. Did the Gens quit running or stop producing power? Mine keeps running but power output stops.
akrv
Explorer
Jun 17, 2019
Went to a rally in Cashmere WA it was a 100 degrees the whole time. Every one that had 5500 generacs would shutdown when the AC was running and air temp got over 98 degrees. Turns out there is a high temp oil switch maybe yours has same problem. Almost all the units were 98-2004

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Generac generator quits power output...UPDATE

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