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Old 03-29-2016, 11:33 AM
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bypass blower motor switch

Can I just bypass the blower motor switch to have the fan on always? I may replace the switch eventually but for now Im ok with always on. Not sure which two wires to tie, its a little harder to determine with a broken switch.

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Old 03-29-2016, 11:55 AM   #2
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Depends on which fan speed you want to have on all the time. High speed would be powering the Brown/Tan wire. Medium/high would be powering the light blue wire. Medium/low would be powering the light green/light blue wire. Low would be powering the Tan wire. The unit is already grounded, You would just need to run a wire direct from 12v ignition source to switch, then switch to whichever wire you want. These would be the wires going TO the resistor. Running direct power to the motor itself would just give you high speed all the time as theres nothing to resist the voltage and would draw a ton of power as you would be bypassing the blower motor relay. Don't do that.

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Old 03-29-2016, 12:42 PM
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Quote:
Originally Posted by CzerOne View Post
Depends on which fan speed you want to have on all the time. High speed would be powering the Brown/Tan wire. Medium/high would be powering the light blue wire. Medium/low would be powering the light green/light blue wire. Low would be powering the Tan wire. The unit is already grounded, You would just need to run a wire direct from 12v ignition source to switch, then switch to whichever wire you want. These would be the wires going TO the resistor. Running direct power to the motor itself would just give you high speed all the time as theres nothing to resist the voltage and would draw a ton of power as you would be bypassing the blower motor relay. Don't do that.
High is perfect for now. Is there not power to the switch already I can pull from?
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Old 03-29-2016, 01:35 PM   #4
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At the switch (5 wires) for ’98 the dark green should have 12v power when the mode slider is in any position except off (key on). Jumping from that to the brown/tan terminal should get high speed. That will also bypass the resistor & trigger the (high speed) relay.
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Old 03-29-2016, 01:58 PM
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At the switch (5 wires) for ’98 the dark green should have 12v power when the mode slider is in any position except off (key on). Jumping from that to the brown/tan terminal should get high speed. That will also bypass the resistor & trigger the (high speed) relay.
Perfect, thank you!
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Old 04-17-2016, 11:54 AM
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To follow up. Thanks again. It ended up being a lose connection at the control switch output (on the right side) I was getting .5V on the green wire. A little bending and its connected tight again.

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