fan for heater, a/c, etc.

The wife has a 2004 Sebring Sedan, Limited, has approx., 61,000 mile on
the speedo. Last weekend when using the a/c, after cooling down the
inside, I turned down the fan to #1 speed. I found that this was loke
turning down the knob to 0, thus shutting down the system. I had to run
the fan speed on #2 , 3, or 4 to get the system to run. Speeds 2, 3, and 4
worked normally at their correct speeds. Could there be a resistor blown
??? Or has the fan switch become faulty ??? Any help would be
appreciated.

Thanks,


Rog

 

get ready for a blower resisitor failure

 

Often the resistor pak going out is an indication of the blower motor
starting to pull too much current due to age/wear. If you replace the
resistor pak, and it blows again in a matter of weeks or a few months,
next time, replace the blower motor *and* the replacement resistor pak
so the third resistor pak doesn't burn up too.

Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
address with the letter 'x')

 

Or better yet just run it on #2 until you burn that setting up, then #3
until you burn that setting up, then #4 until the inline fuse to the blower
motor blows, then replace the blower motor and resistor pak.

Does my car electrical system really care that the blower motor is
now drawing 12 amps instead of 8? Oh golly, that's 0.000001 mpg
loss, I better drop $80 into a new blower motor!!! ;-)

Ted

 

Ted et al.

Or better yet just remove the blower motor, disassemble, relube and
clean, assemble and onward!

I had my 72 Dodge PU for so long and so many miles I did the blower
motor twice.

Bob AZ

 

Usually assemblies like that are not made too easily "disassembleable"
these days. But the bearings could be lubed (just don't use anything
with silicone in it - silicone is death to brushes if it should get into
them) which will help if the bearings getting tight are the problem -
won't help if the problem is brush contamination.

Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
address with the letter 'x')