In the continuing saga of my '91 camper cooling matters:

I reported earlier that I was getting a new radiator, and that I hoped
this would resolve the cooling, keep the temp gage needle more nearly on
the warning led.  this is after the replacement of the radiator
temperature switch by one that clicks on at slightly lower temperatures
for both speeds.

So, I took the van to a radiator shop, where the tech said he thought
the radiator needed cleaning (rodded out), rather than replaced.
however, we discovered that it had some pinhole leaks, and so replaced
it with a new Behr radiator.

But, the tech then called me, and said he could not get the fan to come
on.  The fan was working, both low and high speeds, when I took it to
him.  He now claims that he doesn't know if it was working, but that
there is power to the fan motor, and the fan won't come on.  he claims
that there is no point in doing any further checks, that there
definitely is power, and that the fan definitely does not work.

I am at a loss as to why a perfectly operable fan would just stop with
no warning when disconnected and reconnected.  I tried to get him to run
through jumping the temp switch.  He just thinks I'm nuts.

The fan has factory air conditioning, and he says the fan won't operate
with the air conditioning on (should be full time then), nor will it
operate when the van is warmed to the led position on the gage, though
he can show power to the fan motor.  He says the only thing to do is
replace the fan motor or fan assembly.

What to do?  I think he has it connected improperly some way, but I
can't seem to get him to consider that possibility.   Or, the leads and
contacts may just be old and need cleaning -- sometimes when contacts
are disconnected, they are put back together with dirty sides touching
and therefore not making good contact.  Can't get him even to consider
that.

There are only two wires to the motor as he has it wired, and I believe
there should be four (one for each of the two speeds, one separate from
the air conditioner, and ground).  Is this incorrect?

David McNeely