How is the speed of a blower motor controlled?
How is the speed of a blower motor controlled?
This means that the current running through the blower motor, and thus is speed is controlled by the resistor value. The user chooses a suitable fan speed by using a selector to connect one of the resistors in the blower resistor pack. Blower resistors are made of several resistors with different resistances.
What makes a car blower fan turn slower?
When the motor is switched onto the lower speeds the electrical power is routed through a series of resistors or a solid state assembly that drops the voltage down to 6 volts, 8 volts and then 10 volts (low, medium low, medium) which in turn makes the blower motor turn slower.
How can I change the speed of my blower fan?
The fan speed can be changed either by switching the blower resistor resistance mechanically, using a rotating lever, or electronically by the air conditioning system. The change in resistance then limits the current through the motor, which dictates the speed at which the blower fan works.
Why is the AC not working on my Dodge truck?
Used that one the last time it failed, didn’t burn the truck down but almost. I first notice the AC didn’t work like a Dodge had a reputation of working , so I carried it to the dealer. They said they fixed it and it was a mother board.
Why does the blower motor slow down when accelerating?
However, if the vacuum motor develops a small leak, or there is a leak in the vacuum hose or the dashboard switch, the drop in vacuum may be too much to overcome. That’s when you get a change in airflow. When the door doesn’t operate properly, it may sound like a Blower motor slows down when accelerating
Why does my Dodge Ram blow cold air?
I have a 2006 Dodge 2500 SLT 4WD 5.9 with a similar issue to the others, but not exactly the same. The A/C will blow cold air out of both sides when the truck isn’t moving. When it is moving the passenger side air is significantly warmer than the drivers side. It happens with the control set on either recirculate or regular.
What kind of air flow does Dodge Ram have?
2008 Dodge Ram 1500. Took out glove box and could see the fresh air damper/door is in place and pulled the blower fan motor, nothing broken in there. I felt back inside and the evaporator core and it felt iced. The problem is 80F on drivers Side. 60F passenger side.
Why does my air conditioner slow down when I Turn on the fan?
That’s when you get a change in airflow. When the door doesn’t operate properly, it may sound like a Blower motor slows down when accelerating Sometimes, when a vacuum motor defaults due to loss of vacuum, and the system uses two vacuum motors to switch modes, it may seem as if the fan is losing speed.
