Thanks to all. John I will have to check pump Tomorrow, shouldn't it be in the same storage as Reservoir & Relay wiring? Can hear it clicking as I engage Slides & Jacks, but nothing else happens? Never had to use emergency brake before, I've had this unit since new.. Yeah, Ron; we've had this since 2003, brand new; never had this problem till now?Hey Ontario, house batteries are @ 12.9 to 13.4, & I tried with running engine & JUST using generator with same response--- just a click @ underneath bay that holds Reservoir & All wiring & relays?