Have HWH 625 levelers on a 05 Newmar Dutch Star. On my return trip from Az I noticed the back jack indicators lights came on while going down the road. Now the back jacks have not gone compeletly ...
If you should decide to have the jacks rebuilt, check with a local hydraulic shop. They will rebuild them in a day or two, it will cost less than HWH, and your down time will be shorter.