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Car Forum / Oldsmobile Cars / April 2006blower motor still doesnt work on high
my 82 cutlass blower motor still does not work on high i changed the relay and i checked power to relay and there is power and the switch does work but still no high fan, i did take the ac out of the car. is there something with the ac not hooked up that needs to be hooked up to run on high or what could it be Go to autozone.com/repairinfo for a wiring diagram of the system. > my 82 cutlass blower motor still does not work on high i changed the relay > and i checked power to relay and there is power and the switch does work > but still no high fan, i did take the ac out of the car. is there > something with the ac not hooked up that needs to be hooked up to run on > high or what could it be When you say that there is power to the relay are you speaking of power to its coil or power to its normally open contact which supplies full battery voltage to the blower motor? The red wire to the relay should be hot at all times. Power to this point comes through a fusible link, not a fuse. Check to confirm that power is getting there. > my 82 cutlass blower motor still does not work on high i changed the relay > and i checked power to relay and there is power and the switch does work > but still no high fan, i did take the ac out of the car. is there > something with the ac not hooked up that needs to be hooked up to run on > high or what could it be i checked the wire from my switch to the relay by moving the switch and my light tester came on when i turned the switch to high. but now what to do now? im sure the red wire is hot all the time couse the fan does run on the lower settings That red wire powers the fan ONLY in high speed when the dash switch energizes the relay which you checked with your test light. There is a separate source for the lower speeds. You need to confirm with your test light that the red wire is indeed hot all the time regardless of ignition or heater switch position. Can you listen for a click or feel for the click on the relay when you turn the switch to high? Perhaps a helper can aid you. If you don't hear or feel a click my next suggestion would be to put your test light leads right across the coil of the relay. The test you did proved that voltage is getting to the coil, but it did not tell you if the relay's ground circuit is intact. >i checked the wire from my switch to the relay by moving the switch and my > light tester came on when i turned the switch to high. but now what to do > now? im sure the red wire is hot all the time couse the fan does run on > the lower settings
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