front air bags/susp dump light

[Rose Mary]

Hi all,
Was getting ready for a little road trip and .....a previous problem
recurred. The air isn't coming up on front bags, susp dump light on.
This happened once before and a mobile wrench came and tapped on a
valve underneath the coach and it hadn't been a problem since. I have
tapped to no avail, not sure how strong of tap is ok. How difficult is
it to remove and clean that valve etc. Little things like this are
probably why I shouldn't try to keep and use my little brother's
coach, . For someone who likes to wrench and knows how, these little
fixes are free and relatively simple, but for myself and my 84 year old
mom it gets spendy when we have to pay someone for every little thing.
Thought we were about ready to roll for summer trips etc.
The turbo cat runs great, all fluids fresh, everything lubed...
The rear bags are fine. Was hoping to get away a few days but rats,
mobile wrench not available until next week.
On our last outing a month ago everything worked great. (With the
exception of dripping of the waste/gray ....(blue with the aqua
treatment)....the tanks were not full, the drip started after we
dumped. The valves were hard to get open, (my first time dumping) then
at first the gray water valve didn't want to stay fastened, it would be
loose after we traveled a bit. Finally got it to stay closed but the
drip didn't stop. When I can get the air up, will go dump and make sure
the tanks are empty and check the gaskets..?
Sorry this is so long.
Looking forward to taking the coach out for some exercise.
Rose Mary
82 FC 33
Oregon