Here's a simple operation that may help. Mine was acting the same way and this fixed it.
You have an umbilical cord running from the coach to the generator that controls the remote start. In this cord over the generator, you will see a plug connector. Open the connector, spray it electrical contact cleaner, put a dab of Dielectric Grease on the pins and reassemble.
Hope this works.
Dennis & Carol
2003, 4006, 41' DutchStar,
Spartan, ISC 8.3L W/BanksPower - 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake. And the 04 Bird, Sunshine Car.