Why are the Blower motor speeds not working on 1999 ford contour?
replace blower motor resistor. It is under the passenger side foot well.
If your talking about your blower motor only working on high its usually your blower motor resistor that has stopped working properly. (The blower motor resistor is an electrical component which limits the flow of electricity to your blower motor, allowing it to spin/blow at different speeds). It is easy to replace on some vehicles that have easy access to them because all you have to undo is usually two screws/bolts and one wiring connector.
Either than switch, the resistor, or the relay is bad. On my 1999 Buick Century, the blower motor quit working on the three lower speeds, and then went out completely. When the resistor goes bad, the lower speeds quit working. My blower motor was squealing, also. After I replaced the blower motor and the resistor, I tested it and found the blower worked great on every speed but high. It turned out that there is…
If you have no blower speeds at all, first check the fuse. If the fuse is okay I would suspect the blower speed switch and its electrical plug has melted. If the switch checks okay I would suspect the blower motor is bad. If you have high speed only, I would replace the blower motor speed resistor. If you have all lower blower speeds but no high speed, replace the high speed relay.
Assuming you have no speeds including HI I would check for power at the connection at the blower motor with ignition and switches on. If you have power the motor is shot. If you have no power go back and check the fuses. If the fuses are good check the switch and electrial plug at the switch for damage. If the blower motor speed resistor was burned out you would still have HI speed.
It could be a blown fuse but more likely it is either the blower motor resistor or the blower switch itself. TJ's are prone to overheating and melting blower motor switches because of high current flowing through them. To test the switch, check all four fan speeds to determine which of them is inoperable. The blower motor resistor regulates the blower speed on positions 1 through 3. If the blower doesn't work on any position…
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Check for 12V at the blower motor connection with ignition on and while selecting all blower speeds with fan switch. If you have power with all speeds at that connection you probably have a bad blower motor. If you don't have power there with any speed selected you probably have a faulty fan switch. If you have power there with only some of the speed selections you probably have a bad speed resister. If you…