2004 Brave HWH jack problem

[Sboyd]

My jacks store fine. But the last two times I've moved the RV, within 20 miles the warning DING DING DING goes off and it is the driver's rear jack slipping down 1/2 to 1" depending on how much further I drive. Is this a problem with the springs which look fine? Or something else?

I am a 9 year full timer and a recent widow. My husband fixed everything and I am lost without him but do not want to give up my life on the road.

I hope you can help me or tell me where else to go for help.

Thanks in advance.
Sherry Boyd