Can anyone help me with the above. The fan only has approx 167v on its input and makes an effort to run. If I connect it direct to the main it runs OK. You can hear the relay operate when you turn the fan control knob. I suspect the fan is controlled by the Electronic Control board but would like someone with more expertise to confirm. If it is the board, where can I get a replacement. Would appreciate any help.
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Re: Fan will not work
Sound like the blower motor is bad. They have a high and a low speed it is probaly hooked up to low speed not high. The only way to tell if it is the motor or the board is to see if you can change motor wiring on the board. If the board is bad you will need the make,model# and serial# of furnace. You should be able to call a local heating and cooling company and they will be able to get you a control board or a blower motor. You can also check counity on motor windings is the low speed is out. Have you checked the start compasator on the motor
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Are you seeing this error on a system you built or a pre-built system? If it is a pre-built system, check that the fans are running. Next check where the fans are plugged in, the CPU fan must be connected to the CPU fan connector on your motherboard. The chassis (rear case fan) only needs to be connected to the motherboard if you want the monitoring/PWM (modulated fan speed) option. If your CPU fan is powered directly from the power supply, change this.
If this is a system you built or recently updated the case, check your fan power connections, as above. Next check the fan speed. My ASUS board will give the "CPU fan not detected" error if the CPU fan speed is too slow. A different CPU fan will solve the problem. (I got my fan with the CPU; it works fine.)
I hope this helps. Please add a comment with more information about your system for more assistance.
Hi there, this is your sender unit that teh wires connect to on the radiator. Basically when the radiator heats up to approx 95 degrees Celcius the sender unit makes a contact that creates a circuit to drive the fan. If this is malfunctioning the circuit will not be made and the fan will not run.
My parents had a cassablanca fan that utilized a three button remote and if I am not mistaken to reverse the direction you held down two of the buttons at the same time for approx 3 seconds and the fan would make a different beeping sound than it does normally when changing fan speeds and bingo it changes direction. It should work, all fans work basically the same . Good Luck
Did you notice if there was anything else not working in the house?
If so, most likely a breaker tripped. If it did, then there is a problem with
the circuit. Unplug everything on this circuit and try resetting the breaker.
If it still has problems, call in a licensed electrician to troubleshoot
Did anyone work on anything prior to this event? May be a loose
connection. turn off ALL the power in the electrical panel before you work
on the fan because you have no idea which breaker (or fuse)
operates this unit. Check all the connections in the fan. If the
connections are good then we need to stop here because more
details would be needed.
Are you sure compressor is running? If it is make sure the evap fan is running. You should be able to hear the fan when you open the door. If ypou do not hear a fan running then fan has gone bad. 4390914 and approx cost is rediculous in my mind but it is approx. 150.00 to 160.00 . Crazy for a fan motor.
it could be bad right out of the box,but make sure you are getting proper voltage at the fan,and that all connections have been properly made up,and not loose.you should not be able to pull the wires from the wire nuts without some effort.(give them a little tug after you make them up).These fans can be a little slow to start on low,and if it seems to run quietly on low after getting up to speed it may be alright,but do check it out first.If the fan gets very hot to the touch after a couple minutes operation,and the other examples didn't fix it its probably got a short in its windings,and cant be fixed.The fan should have high temperature overloads built directly into the windings of the motor,if the motor reaches a dangerous temperature it will stop working.
When you tested the voltage they mean basically nothing without a load. No automobile fan will run at 1/2 a volt. Put the blower back into the circuit and retest the voltage. If you did indeed check with the blower in circuit, you do have a problem with the supply voltage. I would need to know what make, model and year to tell you more. As a temporary fix, you can rig a switch to the blower to supply 12 volts directly to it. It will run on high whenever you have it on, but it will work until you can trace back to where the problem is.
By using the "switch" to change direction I assume you mean the small slide switch on the side of the fan housing. What you have done is correct and would not affect this switch. The switch is probably bad and you need to return the fan. Suggestion: if the switch is on the housing of the light kit and the light kit connects to the fan with a plug, you are in luck. Go get another fan, swap the light kits and return the fan. Saves you a lot of work. Good luck!
Remove & reinstall all the memory sticks (reseat). If that did not fix the problem, remove all the memory sticks and reinstall them one at a time to test them in an effort to determine if one of them has gone bad. Use this same methodology to test all of your device cards.
Check to make sure the CPU fan wire is connected to the fan header on the motherboard and that the fan is operational. Most motherboards (especially AMD) require the CPU fan to be operational and connected to the motherboard to avoid frying the CPU. However, this requirement can be disabled in the bios to accomodate CPU fans that do not run off of the motherboard fan header.
Can you get into the bios? If so, I would suspect the CPU and memory are ok. Does the clock have the right time? If the time on the clock is wrong it could indicate your bios settings are not being maintained after you power down and you may need a new CMOS battery.
Usually a beeping motherboard is an indication of a hardware issue. The data on your hard drive is probably intact. If you need to retrieve some files from the drive for your graduation, you can always install the hard drive into a USB external hard drive enclosure and connect it to an oprational computer.