battery update, Air Step, Primus

[jvredden@...]

There is a note in the database of this web site telling of the company that
provided PRIMUS to the RV industry. Mark Dexter. Mardex was his company.
He will provide information and service for PRIMUS. He is located in Elkhart
Indiana. There is an over temp safety switch on each PRIKUS boiler. If you
follow the hot water line out you should see them. It is a small red button
with two wires on either side. Mr Dexter told me that the over temp switch's
were required by RVIA but not necessary or used in Europe. You can bypass
them by pulling the wires and using a bayonet fuse to jumper the wires
together. I have my switch's being used because they still work, but you could
use
the jumper process noted above to test them.

You can test the circulation pumps by relocating a wire on the relay above
the boiler. Its the center wire that is taken from the outer pole to the
center pole. When you do that you should be able to hear the pump and see the
stream. ( call Bennie at BB for specific instructions...he told me how to do
it) Usually if the circ pumps are bad you get the boiler to fire off but the
overtemp switch will cut off the boiler when the failure to circulate lets
the water get too hot. The read light on the control panel should only flash
red when the boilers fire off. If the red light stays on you do not have the
primus firing off. They way you can see if you have a circulation
problem..You should be able to observe the coolant stream coming into the top
of the
header tank of the PRIMUS.

I have the instruction manuals for PRIMUS that came with the coach. I will
be happy to make them available to you if you like. Contact me at
704-664-3121.

Hoe this helps

john redden
91 PT-40


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