No Heat in 1993 Explorer

[fritzdog]

Hi,
I have a 1993 Ford Explorer and up until a few months ago my heater worked only on high/full blast. Now it does not work at all. No heat, no defroster, no see road. Any advice on where to start first???

[molehole]

Does it blow any air out at all?

[n0c7]

2 part problem:

Heater only working on high - replace blower motor resistor. This is easy to replace, 2 8mm bolts I believe and is a small rectangular looking black box mounted to the right of the blower motor.

No heat blowing at all - replace blower motor. Realitively easy to replace as well.

You can find the blower motor resistor at your local junk yard. One from a Bronco may work as well(this is where I got mine out of for my 93 Explorer). I purchased a new blower motor for about $25 brand new at the local parts store. Hope this helps!


PS:

It is also possible that the blower motor resistor is totally shot now and thats why you are getting no heat. I would start by changing this out before you change the entire blower motor.

[molehole]

Also check the relay under the hood if the blower isn't working. Tap it a couple of times. It is on the passenger side under the hood in the relay box.

[n0c7]

Yup, check the relay and the fuses as well, I was assuming you have checked the basics already. You can borrow another relay from something else as a quick test if you don't have a spare one.