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A bi-metal fan switch uses a strip of two different metals with different expansion rates bonded together. When the switch heats up, one metal expands more than the other, causing the strip to bend and close a circuit, turning on the blower motor. When the switch cools down, the metals contract at different rates, resulting in the strip bending back and opening the circuit, turning off the blower motor.
What else can I help you with?
What is the purpose of the blower in a fan?
The blower in a fan is responsible for generating airflow by pulling or pushing air through the fan. It helps to circulate air in a room, cool equipment, or exhaust stale air. The blower creates the pressure difference needed to move air efficiently.
Why does the blower fan only work on high speed?
The blower motor resistor module is ruined and need replacement. It can be found from below and behind the glove box. Tt may be hard to see, follow the wires to connection that is mounted to the blower unit by two small hex-head screws. I removed the glove box so I could access it easier than trying to go from the bottom in a confined position.
Why would a whole house fan only work on 1 speed?
A whole house fan that only works on one speed may have a faulty motor or a damaged speed control switch. It could also be a problem with the wiring or the fan's internal components. It would be best to have a professional electrician or HVAC technician inspect and repair the fan to ensure it operates correctly and safely.
What's the difference between blower and fan?
A blower is typically designed to move air at a higher pressure than a fan, making it more suitable for applications such as blowing debris or inflating objects. A fan, on the other hand, is designed to move air at a lower pressure and is commonly used for cooling or ventilation purposes.
When you switch on the fan electrical energy is converted into what?
When you switch on the fan, electrical energy is converted into kinetic energy, which drives the rotation of the fan blades, creating airflow in the surrounding environment.
I think I need a new blower relay for my 1993 olds delta 88 royal the heater fan will cut out at times and then come back on once it's on I do have all speeds working do you think it's the relay?
The blower relay only operates the high speed function. The blower speed resistor operates all the lower speeds. I would suspect the blower speed switch is at fault. Examine the blower speed switch and the plastic electrical plug that plugs into the switch, you may see the plug has melted.
How do you change a blower switch on a 2001 Grand Prix?
it is probley not the blower switch. if your fan runs on 3,4 and 5 it is your blower motor resister.
99 Acura TL Blower fan do not work?
Check your radiator fan switch and your fan switch coolant sensor .
Electric furnace fan blower will not shot off?
Bad low limit switch,fan switch.
Why is the fan switch not working on your 1999 grand prix?
Bad fan switch Bad fuse Bad resistor pack on blower motor Bad blower motor
What operates the radiator cooling fan in a 1988 Toyota Corrolla?
the fan switch.
Does blower motor relay make fan run?
A typical blower motor relay only operates the high speed function.
Replace switch that control fan speed for vent in Chevy silverado?
Change blower fan control switch in the dash
1993 Chevy pu you have no low or med blower motor speeds you have high only you have checked all the fan speed relays resistor fan switch and blower motor all ok What to do next?
Resistor pack on blower motor? Fan switch? Low speed relay?
I have a 2000 Nissan sentra. My blower fan switch is numbered 1 to 4 and when i turn it on it only works on number 4.?
Blower resistor switch
What can be wrong with a 1992 Geo Metro that when you turn on the fan blower switch no air blowes out?
You have a bad blower motor. i have seen a lot of the switches go bad turn on the fan and try pushing down on the fan switch and see if the fan comes on Just to add a liitle to this reply generally if it is your fan switch not all of the speeds burn out at the same time so try turning the switch to every position if any of them turn on ur fan than its just the switch if none of the fan speeds work than it is your blower motor.
Why do my fan blower stay on all the time in a 2002 BMW 5 series?
bad blower switch located behind blower control.
