What happens if you install a resistor backwards?
Resistors are blind to the polarity in a circuit. Thus, you don’t have to worry about installing them backwards. Current can pass equally through a resistor in either direction.
Can you reverse an extractor fan?
You can reverse a vent fan. Though you might not expect to need to change a vent fan’s direction, this could become a necessity. Perhaps you’re in the middle of renovations and need to change the flow of air or the motor to the fan broke and the replacement arrived rotating in the wrong direction.
What happens when a fan runs in reverse direction?
If air is moving in our intended direction (but with less than rated air flow), I can at least make some sense of it. It depends on the style of fan. If squirrel cage, it will not work to change the rotation. If propeller style, it will move air but not as much. How much less will depend on the design.
Can a hot wire be wired backwards in an outlet?
If the white wire is connected to where the hot wire should be, its wired backwards. If that’s the case, all he needs to do is switch the wires and everything will be fine and dandy. On the other hand, if everything looks correct to the electrician, the white wire is the hot one and the problem is upstream from the outlet.
What to do if your a / C fan motor is not working?
If you can’t tell that this kind of switch was done, don’t worry about it and set the new motor’s jumper to get it spinning in the right direction. But, if you aren’t certain or comfortable with the situation, have an electrician look it over.
Why is my air conditioner fan blade upside down?
The problem is air was blowing down and out of the side instead of out of the top. I immediately thought I installed the fan upside down even though I marked it before removing it from the old unit. I then took a look at the blade closely and the blade has a concave shape that is turned up.
Why is there no ground on my blower motor?
It seems, too, that the black ground wire on the blower motor (accessible from just below the dash) has NO ground potential. I ghetto jumpered a 16 gauge wire from the back of the metal clip on the ground wire to the dashboard impact bar/brace and the fan turns at variable speeds with the knob!
Is there a red wire on the blower fan?
This is a 1995 Suburban K2500 4×4 6.5 TD. There isn’t a red wire at the fan. On the blower itself there is a purple wire (+12v whenever the blower speed is anywhere other than ‘off’) and black wire which should presumably be ground. I have tested the black wire for continuity to ground and theres almost none at all.
Why does my blower fan keep getting ground on Black Wire?
The AC system itself has trouble and has a leaky AC compressor (which I also bought a new one to replace!). I broke out the old trusty multimeter and it seems as though the purple wire on the fan motor gets +12v at all times with the fan switch anywhere but OFF.
Where is the relay on my blower fan?
With the key ON, the controls do nothing. I get no clicks from the relay under the glovebox – the only relay that clicks with the blower knob is the one under the fuse panel on the drivers side of the engine bay and I believe thats the AC relay.