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Heater only works at high speed

Clarke

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Explorer '93 XLT 4x4 4L
Hey
My heater blower motor went on me a month ago so I replaced it with a brand new on from ford. Now I only have high speed. no low no middle.
Is this a switch problem or did I get the wrong blower motor?
 



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DeRocha

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'93 XLT 4x4
Take a peek at the Heater fan resistor pack thread in the Heater and A/C forum

The resistor pack steps down the power for all settings other than high. For the high setting the circuit by-passes the resistor pack and sends full power to the fan... The resistors are like the filaments in a 3-way light bulb and will burn/out break over time causing the symptoms you have...
 






Clarke

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thanks for your help. hopefully thats the problem.
 






Potomac30

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1993 XLT 4WD
Don't forget to vacuum the leaves and pine needles out while your in there. It'll help prevent that annoying flash fire in your ductwork.
 






Clarke

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LOL thanks i take it you speak from experience
thanks for the warning
 






thewishkah

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1994 explorer xlt
Yeah hes right its 99% the resistor I had to change the one in my EX times.
 






Clarke

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Explorer '93 XLT 4x4 4L
thanks guy
i change that resister thing and its all back to normal
 






DeRocha

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Joined
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City, State
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Year, Model & Trim Level
1994 Explorer XLT 2 WD
Thank you I needed this!

I'll get onn it next week :thumbsup:
 






ScottT80

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'97 XLT sohc 4wd
Does anyone have a picture of this? What about a part number? My '91 needs the resistor pack replaced too.
 






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