Question about 2005 Lincoln Navigator

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Rear blower motor won't shut off, runs all the time on high when ventilation system is on

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  • Anonymous Mar 13, 2014

    x5 blower motor won;t shut off

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Check rear blower control switch for operation and for fault. You may need a multimeter to check electrical outputs.

Posted on Nov 04, 2012

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1 Answer

Why does my heater motor stays on controls don't work 94 chrysler?


sounds like you have a blower motor resistor that has gone bad. these systems are set up(wired) that the blower will either not work, caused by the main resistor wire is broken, or will only run on high. you don`t say exactly what is your problem. it could also be a bad switch that has gone bad and won`t shut off(always in the run position) due to a short.

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Rear blower: only works on high when set on cold, won't work at all when set to heat


I would start with the rear blower motor resistor, the resistor is what controls the speed of the fan, the resistor is located in the rear heater box near the blower, you will need to remove the right rear side panel to access the heater box. start with that

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2004 Chrysler Pacifica Blower won't work


Usally when a blower motor resistor goes bad the fan still runs on high. The resistor lowers the voltage going to the fan to make it run slower. The high setting usually goes straight thru. Resistors are usually easy to get to, under good on the firewall or under dash passenger side. Cost about $24 at parts store. Replace with new if that doesn't work return it.

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Chrysler T&C 2003 blower motor won't shut down


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Jul 03, 2012 | Cars & Trucks

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BLOWER FAN WILL NOT RUN ON HIGH SPEED. WHAT TO CHECK??


The relay for the manual blower system is a different relay from the others. It has terminal 87 which is the high amp terminal. It comes through fuse 3 on the relay center, a 30 amp fuse. It it is right hand underhood.

The relay also contacts terminal 87A which is the lower power circuit that gets 25 amp from fuse 5D in the instrument panel fuse block. That supplies the 3 lower speeds and when switched to high applies voltage to the relay switching it from the 25 amp circuit to the 30 amp circuit.

The SAME wiring supplies the blower from the relay on to the blower. The blower uses only one ground which is terminal B on the blower motor. Your motor should have run the same but when you disconnected the terminal socket for both A and B from the blower motor, there was no ground. You do have to supply your own ground!

Easy check is fuse 3 in the relay center. Hope it's blown. Might question why it blew, but that's an easy replacement. I might indicate impending blower motor failure with age and high current loads.

it could indicate the relay is stuck on the 87A contact and not switching under power to the other terminal. Could be primary circuit blown not pulling the relay or could be the contacts are physically burned to the most-used contact.

Jun 06, 2011 | Chevrolet Corvette Cars & Trucks

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Blower stays on when car is turned off won't stop running until I disconnect the battery cable, tried the blower fuse that didn't work. 1995 olds auroa


If you pulled the 10 amp fuse in the I/P fuse block and the blower still worked than the the blower motor module is most likely the problem. It is fed by a 30 amp fus4e in the fuse block under the rear seat. That fuse is always hot and always supply power to the blower motor module. If you pull that fuse and the blower stops than it's pretty likely the blower module is the problem.

The blower module is located near the blower motor. It is usually held in place with 2 screws and will have four or five wires at the connector.

May 10, 2011 | Oldsmobile Aurora Cars & Trucks

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