What to do if rear blower is not working?
They wired the blower motor resistors after the motor, then comes the rear speed control then ground. Check for 12v at the YE/RD wire in CJB at fuse 7, then the G200 ground. If nothing then the aux relay.
What causes a blower motor to stop working?
In a situation where the motor doesn’t work on any speed, the most likely causes are: a blown power supply fuse, a bad motor ground connection, bad motor speed control module or a failed motor. On all systems, a failed blower motor is least likely. Blower motors generally don’t fail out of the clear blue.
What happens if you lose the blower motor relay?
The blower motor is the component responsible for pushing air through the vents of your vehicle’s heating and air conditioning systems. Without it, the AC system will not be able to circulate any heated or cooled air. The blower motor relay controls the current used to power the blower motor,…
How does a blower motor work in a car?
Carmakers use these three common wiring methods to supply power and ground to the blower motor in a manual system using a blower motor resistor. In one design, the car maker supplies battery power to the speed switch, which switches the power to the appropriate connection on the blower motor resistor.
Why is my AC blower not working?
A common problem behind an air conditioner blower not starting includes overheating, which keeps the motor from running. Let your air conditioner rest and cool down for a while before trying to turn it on again; if the motor works at that point, overheating is probably the problem.
What are the symptoms of blower motor failure?
- Lack of air from the vehicle’s vents
- Stuck on specific settings
- Stuck at one speed
Is my blower motor bad?
No air from the vents. No air flow from the vents when the heater or air conditioning is activated is another symptom of a bad blower motor. If the heater blower motor burns out or short circuits, it will not function, and therefore will not be able to produce any airflow for the system. The blower motor will usually have to be replaced in order…
Why does blower motor resistor keep going out?
The blower motor appears to be defective here. When the brushes wear out the motor draws excessive amps which could cause the resistor to burn out. Before making further replacements remove the motor and check it, especially the brush assembly. This is the most likely reason for the resistor to fail repetitively.
Where is the fuse on the rear blower?
The rear blower has a fuse inline after the blower relay. On my 99 it is fuse 7 in the central junction box. From there it splits to the console blower and to the aux a/c relay located behind the driver side panel for the rear a/c up by the door.
Why is my blower not working on my expedition?
Blower runs fine when hooked up to 12 volt power. No power on any wires that go into the fan speed controllers on both. Temp & position controls seem to work, I can hear stuff moving in back when I turn them. Is/are there relays somewhere that could be bad… really stumped on this one. Check the aux a/c relay.
Where is the rear blower on a 99 Ford Expedition?
On my 99 it is fuse 7 in the central junction box. From there it splits to the console blower and to the aux a/c relay located behind the driver side panel for the rear a/c up by the door. With the ignition on acc, front selector on a/c, check for power on aux relay terminal 86 & terminal 30. Both should have 12v.
What to do if your rear blower stops working?
Chevy tahoe suburban rear blower stops working. How to fix. – YouTube Chevy tahoe suburban rear blower stops working. How to fix.
Blower runs fine when hooked up to 12 volt power. No power on any wires that go into the fan speed controllers on both. Temp & position controls seem to work, I can hear stuff moving in back when I turn them. Is/are there relays somewhere that could be bad… really stumped on this one. Check the aux a/c relay.
The rear blower has a fuse inline after the blower relay. On my 99 it is fuse 7 in the central junction box. From there it splits to the console blower and to the aux a/c relay located behind the driver side panel for the rear a/c up by the door.
What to do if your Chevy Tahoe blower stops working?
Chevy tahoe suburban rear blower stops working. How to fix. If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer. An error occurred while retrieving sharing information.
They wired the blower motor resistors after the motor, then comes the rear speed control then ground. Check for 12v at the YE/RD wire in CJB at fuse 7, then the G200 ground. If nothing then the aux relay.
How does the rear blower work on a Ford Expedition?
Rear blower is supplied power from the function selector switch then the blower motor relay. After that its fused in the central junction box then to the aux a/c relay. It gets a little crazy after that. Yes, the front heater works fine.
Why is my a / C not working in my Ford van?
Rear A/C not working correctly. Hot air blows out of the lower vents along the side wall no matter what position the control selector is in. Vent blows heated air. A/C blows heated air. Heater blows heated air. All out the lower vents. Nothing out the upper (ceiling) vents, even when A/C is selected. The rear blower works and changes speed.
Why is my a / C blower not blowing?
A metal that when it corrodes, it turns white, and unlike copper, aluminum corrosion does not conduct electricity at all and causes resistance issues and can cause overheating of a circuit. Took out a common finger nail Emory board and went to work, both sides of each contact, then used a small brass brush on each side and along the tips.
On my 99 it is fuse 7 in the central junction box. From there it splits to the console blower and to the aux a/c relay located behind the driver side panel for the rear a/c up by the door. With the ignition on acc, front selector on a/c, check for power on aux relay terminal 86 & terminal 30. Both should have 12v.