The number one reason for an Electro-Level or EL-II system
failure or intermittent operation is a very simple fix. The control
switches up front
get a
corrosion buildup and when that happens----- operation of the system does not.
Now that we know this, how do you fix it? You cannot replace the switches with new ones, well maybe there is a switch around somewhere but you don't have to pay 3 prices for a new switch-- shoot, there are 3 of them, that would be expensive! No, you can break them down and clean the points and they will work as good as new.
Step one, remove the 4 screws, unplug the 3
switches and remove the panel to your work bench. One at a time, remove a
switch for cleaning
One at a time in that you can look at the other switches to be sure you get the
one you are working on back together correctly. Pry back the 4 clips
holding the back of the switch on
Pulling off the back, the deteriorated foam packing will come apart (scrape it
all out) and the contacts may also fall out
thats
OK. Look inside the back and you will probably see your trouble
.
The points may have burn marks or even pitting and the contacts will show
similar damage
.
As long as you can reassemble the switch properly, the fix is easy. Polish
up the points, clean them and the contacts and get all of that yuky stuff off of
them
.
Not to say you do not trust yourself but always check your work by checking
continuity with a meter
before you reinstall the panel. If this test flies, reconnect the 3
switches, put the center switch on "hold" and the left & right switches to the
middle. Turn on your ignition key and press both left & right switches to
"lower" and see if the coach drops. If not, you have other problems, if so
then flip the side switches to "raise" and see what happens. If the
suspension goes "way up"--- great, the compressor should shut off when the
system reaches the max pressure. After the compressor shuts down and you
are satisfied that the system is pressured to its max, bring the side switches
to center and switch the middle switch to "travel". Within 20 sec. or so,
you should hear a slow air release from the height control valves and the coach
should drop to its preset proper ride height. If your coach fails any one
of these tests, you still have work to do. If it does all of that, well
then your job is done.
Hope this helps, give me a call if you have other troubles with the system.