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Re: -Works on high, but won't work on medium or low, it...
Replacing parts should be the same specification of unit to replace and and connecting to new to old one should only what you disconnect to the old should be connect to the new one just follow the previous,anyway if you lost the connection well it not easy job and or if you buy other brand you will lostalso in connecting circuit .In this case of no manuals qualified tech. should done this,but if you have knowledge basically electricity and you want to fix this, several factor shoul be taken.first you should have multi tester or clamp ammeter.there are factors motor does not run .There is thermistor on winding inserted in the connection of the motor this protect to burn out your motor.,if yuor motor heat or immerge a high current this will cut your power supply to the winding.that even you replace parts this wii not run,you have to replace thirmistor it looked a small resistor,check the ambien temp,volt sepc .Also check the winding if it is burn out, Also check the bushing and shafting if this are worn out. replaced.If you worn out shaft and bushing this run but suddenyl stop and it will ham until develop heat and burn the thermistor.In connecting the wire take the common line connect to one supply line.And take runningline capacitor connect to the selector "switch " one supply line connect to the terminal swicth.
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Check your capacitors to see if they're bad. That's the black box near the pull chain switch with wires going to the switch. If bad call 1-888-830-1326 Hunter parts. 2 wire part # 74132-01-000 ( probably not this one) Other capacitor part # 74133-05-000 (probably this one)
A simple Capacitor based speed control. How many places do you have to put wires on your switch? You may have mis-wired the switch, or you have the wrong switch.
How it all works is... When you turn the fan to High, or position 1 on the switch (there's L 1 2 and 3) the power goes from 1, to the capacitor, but does not go through the capacitor, but instead goes through the second (probably gray) wire directly to the reversing switch in the switch housing. When you switch to medium (or 2) both 2 and 3 positions on the switch are supposed to be sending power through both capacitors inside of the black box. Basically, you have two capacitors, when you go to medium, both are wired in parallel to each other, but on low, only one is in the circuit. Basically, the switch you have, or have mis-wired, is putting only one capacitor in the circuit at the time on medium and low positions.
Also, do not worry, so long as you only mess with these 4 wires, you cannot blow anything up, However! When you disconnect power from the fan, BE SURE that the fan is "On" when you turn the power off to ensure the capacitor discharges as you can get a very very nasty shock from the bare wires.
Sounds like the speed control switch has been replaced recently, or one of the capacitors in the black brick in the switch housing has failed. Most modern fans use a double capacitor for medium and low. High is wired straight across the run capactor (which is usually 2 wire by itself, or all three capacitors may be in one big black brick)
The symptoms you describe suggest that the speed capacitor has failed. Typically they are 5+5MFD, or two in one case On Medium both 5MFD capacitors are activated, but on low only one is activated. The capacitors serve as a "choke" that limits the amount of current getting to the motor (not voltage, but amperage)
Find out the manufacturer of the fan and if it is Hunter, their number is 1-901-745-9222. Tell them the model# of your fan and they shall get you hooked up with a new cap.
It sounds like fan motor is okay. There are two motor windings -- one low speed, one medium speed. Low winding gives you low speed, medium winding gives you medium speed, both windings give you high speed -- so I would say if you get high speed, both windings are good.
The remote (the hand held transmitter) controls the speed by raising and lowering the frequency of the current which is 60 cycle coming to the fan ceiling box. If the fan speed -selector switch (usually a pull switch) is set to high, when the remote (transmitter) signals the receiver to change speeds, the frequency of the current is changed by the receiver (the receiver is usually in the fan housing).
Sounds like you'll need to replace the remote system -- these come in sets, both transmitter and receiver, and cost about $30. If you're not experienced with wiring fans, you should get an electrician to do the job.
If this fan has a pullchain that also controls the fan speed, and you have a remote, the pullchain has to be set for the highest speed. If it is set at medium or low, it will mess with the remote operation. Note: usually high speed is the first pull after the "off" position.
I saved this text I found when I was researching this a while ago.
Let us know how you do.
Wiring a three speed fan switch
My daughter called me the other day and said Dad the ceiling fan in the kitchen is not working only the light works. I went over and removed the three screws that hold the light and pull chain for the fan down and found that the fan control switch had snapped open and all 4 wires had popped out. The snap clips on each side of the switch had broken off. I went down to Home Depot in the ceiling department and found the switch I was looking for. It said for a four wire ceiling fan. OK, know lets put it back together. First of all if you look at the new switch you should see four holds were the wires will be pushed into. The black wire in the fan is the hot or load wire, this wire is hot whenever the wall switch to the fan is turned on. Put this wire in the hole that is marked “L” this stands for load. Now with this switch in the off position the fan will not work until you pull the chain. The other three holes are marked #1, #2 and #3. On most fans #1 is usually high speed. # 2 medium and #3 low speed. What you now have to determine is what wires are high medium and low. The easiest way to do this is before you put any of the wires back into the new switch is to FIRST MAKE SURE NO POWER IS GOING TO THE FAN. Then simply take one of the colored wires at a time and twist it together with the black hot wire. Turn the power back on to the fan and knot the fans speed. Do this with all three wires one at a time until you can determine which wire is high speed. Note the color of the wire and mark it down on paper.(Example; blue wire high speed.) Do this with the other two wires to determine there speed. Once you have the speed of each wire you can reassemble the new switch.
Black wire (Load) goes in hole marked L. High speed wire goes in hole marked # 1. Medium speed goes in hole marked #2 and low speed goes in hole # 3. MAKE SURE THE POWER TO THE FAN IS TURNED OFF WHILE YOU ASSEMBLE THE NEW SWITCH.
For those of you that have all these wired hooked up right and still the fan won't work I would then look for an open neutral wire. It should be a white wire. Check to see if all the wires are securly attached.
Good luck. One more word of advice. If you're not sure on what you are doing when it comes to electrical wiring then please do not attempt to do this or any other electrial work yourself. Call a licensed electrian. Any mistakes on your part could void your home owners insurance in case of a fire.
Assuming that the unit was wired properly from the factory and without being able to look at the switch I would have to agree that the switch is bad. The different speeds are obtained by having a different winding for each speed. If the unit was wired properly at the factory and never had three different speeds then the switch is not rotating between all the contacts. The switch should only be a couple of dollars and would certainly be a cheap solution to try. You can check the existing switch by removing it from the circuit completely and checking the continuity with a DMM from the input to each output as you switch it. Continuity should move from one to two to three. If not the switch is bad. If the switch checks out OK then you have a bad winding in the fan and probably need a new unit. Good luck.