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Topic: HWH issue--driver's rear jack won't go down. (Read 506 times) previous topic - next topic

HWH issue--driver's rear jack won't go down.

On our '89 GV the driver's rear jack goes vertical but that's it. It does not extend to the ground.
Which valve is it up front? As I stand in front of the coach and look in at the four valves & solenoids? The schematics I have aren't too clear as to which is front or rear while standing up front.
The pump runs for quite awhile as if there is an open valve. The reservoir tank is full (within 1" of top)
I emailed HWH about a month ago but no reply.
Nitehawk,  Demolition Lady, & our NEW master, Zippy the speeding BB cat.
1989 Grand Villa 36' ORED
Oshkosh chassis, 8.2 DD V8
2006 Saturn Vue AWD

Re: HWH issue--driver's rear jack won't go down.

Reply #1 –
Can't tell you which T handle goes to what, but make sure they are all tight/screwed in, or they will not pressurize the jacks.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: HWH issue--driver's rear jack won't go down.

Reply #2 –
and make sure each jack ground wire is firmly attached. 1 to each jack.
JohnH
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: HWH issue--driver's rear jack won't go down.

Reply #3 –
Do the other Jacks extend? If so then it's a solenoid problem, have someone flip the paddle switch while you are under the front looking and listening for that solenoid to open.  No click then it's electricial in which case jumper from a 12v source to the + side of the solenoid coil and see if it clicks, if not replace.