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It doesn't blow at all.
30 amp htr a/c fuse is good and so is hvac1 fuse below it. Power at both with switch on. I don't have a voltage tester only a test light.
At blower motor resistor check red wire for voltage at all times, orange should have voltage with switch on high, and black should have ground. Let me know, thanks.
If I'm checking power going into resistor, I have power on red all the time, nothing on purple, and do not have a way of checking black ground. After previously replacing resistor I reintstalled old resistor, but still have new resistor which has an orange wire going to motor. I don't have access to an ohmmeter to check ground.
Installed new resistor so I would have orange wire you are referring to. Red wire going into resistor has power all the time. Purple wire going into resistor does not have power with switch on or off. ground is good. Purple wire going to motor has power all the time, orange wire going to motor has no power.
Only red, small purple with white stripe, and ground going into resistor.
I went outside to check blower motor. Before plugging in motor, purple had power, orange did not. Plugged in motor and planned to ground orange wire to see if motor would run. When I probed orange wire it had power too. In my frustration I turned key on to see what would happen. Blower motor works correctly at all speeds.? I give up. It's working for now. Thanks for your help.