Electrical conection to heater motor, heater blower will randomly stop blowing air the heat is there but the fan cuts right out . How the power wire connection is supposed to work when I bent the connector to the right the blower started to speed up again and worked for a couple days but is now occasionally cutting out again

Buick LeSabre Heater - RepairPal

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Buick LeSabre Heater blows only cool air...even w/ defroster on. This is a ... Heater fandoesn't come on . ... The blower works but there is no heat coming out.

Blower Motor Problems ' Auto Repair Help - YouTube

? 4:22
https://www.youtube.com/watch?v=2vmfxYg8LoY
Sep 27, 2009 - Uploaded by mgittelman
The blower motor is a common heater/AC repair within the skill level of ... However if the power wire is a single light purple wire and the ... for blower motor and fuel and relay good but no powercoming on both any ideas? ... my o5 seira, when i start the engine with the air switch on it blows my blower fan ...

Car Air Not Blowing, Heat & Air "How to" Test Testing ...

? 6:22
https://www.youtube.com/watch?v=hgar6Q1lV6A
Apr 5, 2013 - Uploaded by Fixbook
Here I show how to determine the problem if your air, or blowermotor is not ... Click here to check out the the "Car Runs on 2 cylinders" series: ... How to Fix Over-Heating engine & No Heat in car - Buick (2000 yr) Park Ave . ... Car fan / AC only works on high - Replacing the Blower Resistor - Duration: 4:24.

Buick Park Avenue Questions - NO HEAT!!! - CarGurus

Can be blower motor easy to test --remove it look for imbalance by spinning to check bearing smoothness / freeplay . Hook up ground then use inline fuse connector with lower than fuse panel ## number of fuse -- find power Eg .car battery -- be sure to ground then connect Fan to visually see it spin .. NOW if you have any type of electronic dash mounted controls for heat / air conditioning - most likely electrical issue is in it . you said blower motor does sometimes function - Test wires that plug in to it for power / find groung then probe by test light when in heat mode = switch to air cond mode if fan functions then problem in controls on dash .. if no test light reaction search wires for short or damage .. As FUNNY as it sounds I have pulled mouse nest out of GM heater fans - They access parked vehicle by drain hole inner fender well it drains water from wiper blade / heater vent area .

Don't know where you got your info . The heater blower motor electrical B+ power comes from Fuse F 64 a 40 amp fuse . This goes right to the blower motor on the green with orange stripe wire , The black with red stripe wire goes to the switch for high speed . There is Splice 24 that ties into the black with red stripe wire. The splice 24 turns into a black with orange stripe wire . An this wire goes to the blower motor resistor . All the switch does is route the B+ voltage through the different resistors to ground .

Thermal resistor "usually" stops working is because of faulty fan speed switch ???? Totally not true , resistor assemblies fail because of the heat associated with dropping voltage across the resistors , That is why they put the resistor assembly in the air box . Air blows over to cool the resistors . The switch is nothing more then a way to direct different speeds to ground .

Rather then listening to other people ,why not learn the right way to test electrical circuits .
Electric Testing Techniques You Need to Know

Do you know what a wiring diagram is ?
http://www.bbbind.com/free_tsb.html Enter vehicle info . Under system click on HVAC , under subsystem click on heater . Click the search button , then on the link . Use a volt meter an test , don't guess !

Replace the blower motor resistor assembly. To locate the electrical connector for the blower motor resister, it is usually attached to a heating or air conditioning Duct, or the blower motor case. You can also trace the Purple Wire from the blower motor back to the resister. Also make sure that the blower fan is not jamed up with somthing in side and will spin freely,or binding same thing, this will also cause the fuse to blow right away. And does the motor actually spin a bit before it blows the fuse or does it blow the fuse at the same time the switch is turned on? Good Luck and have a good XMASS.

What can go wrong with a blower motor?
There are several things that may cause your blower motor to stop working. The simplest cause would be a blown fuse. If you replace the fuse and it quickly blows again, then you probably have an electrical short. Disconnected wires on the exterior of the blower motor can also cause it stop working, and if your blower motor gets dirty, it can get clogged or muddy which keeps the fan blades from spinning.

How do I test my blower motor?
When you are troubleshooting your blower motor, it is best to start by running the air conditioning or the heater to see if you can hear the sound of the fan. If you can hear the fan, it could be clogged or corroded with dirt. If you do not hear the fan, then you may have a bad resistor, blown fuse, or a loose wire. Next, you should replace any blown fuses in your car's fuse panel and try to start the blower motor again. If another fuse blows right away, you have an electrical short. If it doesn't blow out and the motor is still silent, then something else is wrong. In the case where the fuse lasts for a little while as the fan spins but then the fuse blows again, that usually means you need to replace the brushes on the motor. Finally, you can pull the motor out and visually inspect it for loose wires. If you don't see any and still want to test, try hooking it up to the battery to see if the motor will start. If all these tests still find you with a dead blower motor, it's definitely time to replace it.

How do I replace it?
Usually located under your vehicle's instrument panel, the blower motor can be removed and replaced. You'll need to disconnect the blower motor connector and remove the retaining screws holding it into place. Detach the fan retainer clip from the motor shaft that's located in the center of the blower wheel. You may need to save that piece if you are not replacing the whole motor. Inspect your new motor to ensure nothing is broken and the blades can properly spin. Re-attach the fan retainer clip, the retaining screws, and the connector so you can test your new blower motor out.

Is it no heat/air when sitting still, or no heat air period? If the heat and air blow slightly when driving you have a bad blower mower/resisitor and its not allowing the air to blow into the cab. If not blowing period when moving probably bad heater controls or fuse... Worst case scanario is you have an electrical problem that needs to be diagnosed

I dont know what these other guys are saying..I think they snif the glue!!! YOUR BLOWER FAN ASSEMBLY CAN EASILY BE REMOVED !!
1. Remove the wire
2.Find the "tab on the housing and pull it down while rotating the fan housing counter clockwise. This will remove the fan assembly. Plage 12 volts on the contacts to test the motor. If it works then the resister pack is blown. On the fan housing (near firewall ) you will see a plug going into a square looking box with a screw in it. Remove the wire then remove the screw to remove the resistor pack.. A new resistor pack is around 20 dollars at a ford dealer. Hope thie "FREE" info helps!

check blower motor and resistor with test light,

blower relay is stuck in on position

Check your fuses.If you have a test light, unplug the blower motor, start the car, turn the fan on, if you have power to the blower plug, the blower motor is bad. If no power, if it's not a fuse, check the blower motor resistor. Should be mounted right next to the blower motor. It is inserted into the evaporator box