Typical issue, or so I thought. Automatic Climate control, Blower
motor starting blowing at high speed only and continued running when
car was shut off. Resistor issue of course. I replaced the Blower
motor control module with Advance part# RU1004. Full control of blower
was restored, but the A/C compressor does not engage. System is fully
charged and was working perfectly prior to blower issue. Fuses are all
good. I have not checked to see if there is voltage to the compressor,
my guess is no since it's not running. What am I missing here, could
there be a relay that is out, does the power module do more than power
the blower. Module I replaced was Delco part# 16173860
Appreciate some direction,
Robert
Disconect the negative battery cable from battery for 20 seconds and replace cable back,then try ac let me know if this helps u
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Usually answered in minutes!
Ah simplest things first, I disconnected the negative battery
terminal for 20+ seconds and the compressor still did not engage.
I ran through the control setting, defrost - heat - econ etc. Back to
auto and ran the temp setting up and down, nothing happening there but
blowing air which is what I set out to repair and successfully sorta.
I'll probably replace the low side switch tomorrow after work and see
if that results in any change. Thanks for the advice but keep
those gears turning.
Much Appreciative,
Robert
Thanks roniecon for your suggestion. I corrected the issue after work today. Cooling like a champ.
Thanks
Robert, what is the low side switch? Sylvia
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