What to do when your heater fan stops working?
Fuse Good Relay (fan speed under hood) on firewall replaced Still no power getting to blower motor (purple wire) Mechanic found the harness plugging into the fan switch in the dash had melted. Unplug and take a look at yours. A.C. and heat blower now work. I was surprised the meltdown in harness dident blow any fuses 3 people found this helpful.
Why does my Chevy S-10 heater fan stop working?
If this system is wired as a simple circuit and has a ground side resistor to provide speed changes, that’s how it reduces the current flow. when using “hi blower” the resistance would be in the melted connector you found. If this system is controlled by a more complex climate control it may be scanned or self tested.
Why does my blower motor not shut off?
All of sudden the fan motor started running on high speed and will not cut off of high no other way than the ground off the battery, could not find on fuse panel the fan fuse. helpful? To clarify, are you talking about the engine cooling fan (under the hood), or the blower fan (for heat and A/C)?
What causes a bad or failing blower motor relay?
Blown fuses. One of the first symptoms of a bad or failing AC blower motor relay is a blown AC blower motor relay circuit fuse. If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current…
Why is my AC blower not working on my 2006 Silverado?
2006 Silverado 2500HD blower speed control replacement. My brother has a 2006 Silverado 2500HD. The AC blower will not shut off. I know this is probably a bad resistor module under the dash so I ordered a new one. His has 3 wires in and two out to the blower motor. I was told there was an update kit and the new replacements have 7 wires in.
Why does my Chevy HHR heat and AC fan stop blowing?
First in 07 the ac compressor locked up-it was under warranty. Granted I bought it used with 12,000 miles on it. Then in 08 the accelerator pedal went out. In 09 All of my outlets in the car stopped working-they said it is a main wiring problem and expensive to fix. Also in 09 the wires to the ac system burnt up.
When did the AC Fan in my car stop blowing?
Also in 09 the wires to the ac system burnt up. In 2010 my blower motor went out and the rear windshield washer began spraying fluid into the car oh and my battery died-dead cells-had to be replaced. Now here we are..
How does a blower work on a Chevy Silverado?
I USED A BATTERY CHARGER AND TOUCHED THE PRONGS TO THE E TERMINAL AND ALL OF THE OTHER TERMINALS. E TERMINAL IS THE GROUND AND A,B,C,D,F ARE THE BLOWER SPEEDS. THE FAN SHOULD KICK ON WHEN YOU HIT ANY OF THOSE TERMINALS WITH THE JUMPER CABLE PART OF THE BATTERY CHARGER.
What to do if your blower motor relay is bad?
Use Code DIYDISCOUNT. If the problem still exists when you replaced the resistor. The blower motor relay could be possibly bad. Relay is located at the fuse block on driver-side, remove plastic door on top of hood release latch. Switch relay with another relay and see if it works.
Why does my air conditioner blower not work?
We’ve got a little extra weirdness going on in this one ’92 s10. The blower will work, but only after tapping on the resistor/relay/fan speed switch. Changing the fan speed or turning the blower on or off will cause it to fail again until you give the relay another good tap or two.
How is the resistance curve of a fan developed?
The system resistance curve can be developed by determining the pressure required over a range of system flow rates. This resistance curve can then be plotted on the fan performance curve (also known as the fan capacity curve) to identify the actual duty-point.
How do you change a blower motor resistor?
Squeeze in the tabs on the electrical connection (red arrows) and remove the connection from the resistor. You are going to be turning the resistor counter-clockwise. Use a set of pliers and grasp the resistor by the knob on the bottom of it (red arrow) and turn it.
Fuse Good Relay (fan speed under hood) on firewall replaced Still no power getting to blower motor (purple wire) Mechanic found the harness plugging into the fan switch in the dash had melted. Unplug and take a look at yours. A.C. and heat blower now work. I was surprised the meltdown in harness dident blow any fuses 3 people found this helpful.
What are the symptoms of a worn out blower motor?
One of the symptoms of a worn out blower motor is that it can intermittently produce a loud screeching noise when running. How to test a blower motor? If the blower motor doesn’t work at all, the blower motor itself must be tested first. Typically it’s done by measuring the voltage at the blower motor connector when it’s turned on.
How is the speed of the blower motor controlled?
The electronic module that controls the speed of the blower motor is called a blower motor control module. In some cars, the blower motor has only 4 or 5 fixed speeds. In this case, the speed of the blower motor is controlled by a blower motor resistor.
Is the 10 Amp Fuse on my heater fan burned out?
The 10 amp fuse was not burned out. The blower motor resistor was a little rusty.I inspected and found no burned or melted wires anywhere , at the inside three way dash switch , at the blower motor and at the resistor.I know the air bag is tied into the same fuse , I must have replaced the fuse 12 times .
How many times should I replace the fuse on my air conditioner fan?
The blower motor resistor was a little rusty.I inspected and found no burned or melted wires anywhere , at the inside three way dash switch , at the blower motor and at the resistor.I know the air bag is tied into the same fuse , I must have replaced the fuse 12 times .
If this system is wired as a simple circuit and has a ground side resistor to provide speed changes, that’s how it reduces the current flow. when using “hi blower” the resistance would be in the melted connector you found. If this system is controlled by a more complex climate control it may be scanned or self tested.
What to do if your AC or heater is not blowing?
If your Blower Motor for the AC or Heater suddenly stopped blowing, look here first, it might save you several dollars. Situation, we have a friend that owns a 2017 Chevy Trax LT, she is a nurse who works with my wife, single mom and on a single mom budget.
Is the heater blower on my car not working?
Heater Blower Not Working!!!! Hi guys, i’m sure this has been posted before but couldn’t find it when i just searched so sorry if it has!