I live in a 2 year old house. The ceiling fan has quit working on any speed but low. I just changed the switch and nothing changed? Could the motor be bad already? It says it is a model AC-552 but no brand. It may be Hampton Bay. I can hear a low leval hum from it.

Press and hold the speed button for about 10 seconds, has it started woking like it used to?

What spped button. It only has a pull chain from the switch.

You originally said switch so what exactly did you do? "changed the switch and nothing "

When I said switch, I mean the device inside the housing that has a chain feeding from it.

OK, that 3 step switch has likely failed and can be inexpensively replaced but you will need to determine brand and model on your own. This may require you to drop the fan or get inside the housing around the motor.

I replaced the switch with the chain. Is that the one you speak of?

Read this related link and hopefully ceilingfanrepair will pick up on your question https://www.askmehelpdesk.com/electrical-lighting/hamilton-bay-model-ac-552-ceiling-fan-speed-switch-repalcement-30041.html

I live in a 2 year old house. The ceiling fan has quit working on any speed but low. I just changed the switch and nothing changed? Could the motor be bad already? It says it is a model AC-552 but no brand. It may be Hampton Bay. I can hear a low leval hum from it.

You were getting answers to this question last hour, why did you start a new post?

You told me to see if the other guys will pick it up.

Speed switches for fans are an oddity. They are not all the same.

One method is to use a L-1, L-2 and a L-1&2 type switch with a 3 wire capacitor. It would be rectangular and has markings like 3 uf, 5 uf and C.

I'll bet that one of the caps are bad. Thus, in this case the 3 uf is selected for low. The 5 uf is bad (probably shorted) is selcted for medium and the parallel combination of a 3 uf and short is a short and therfore the high speed doesn't work.

Caps are available from CeilingFanParts.com Home (http://www.ceilingfanparts.com)

Right but not by starting an entirely new post. Be patient and others will read the original post.

<Threads merged>

I noticed the differences when I bought the new pull chain switch.
I feel I bought the correct one but nothing change in it's operation.

Sounds like the capacitor(s) is bad. Put the original switch back in, replace the capacitor(s).

Ceiling fan capactors - troubleshooting and resources - Ceiling Fans N More (http://www.ceiling-fans-n-more.com/ceiling-fan-capacitors.php)

Or, try these troubleshooting instructions:

General ceiling fan troubleshooting and help FAQ- Ceiling Fans N More (http://www.ceiling-fans-n-more.com/ceiling-fan-general-troubleshooting-and-FAQ.php)

Do the blades turn freely and coast when spun by hand?

The fan now won't start by itself at all. If I turn the blades by hand, they will continue slowly. Where do you buy capactors?

If your hearing a huming noise I would say that something is holding it like the fans locked up. And id say the fan is trash

The fan is not trash. You can buy a capacitor through the site ceilingfanrepair already provided. Ceiling fan capactors - troubleshooting and resources - Ceiling Fans N More (http://www.ceiling-fans-n-more.com/ceiling-fan-capacitors.php)

Capacitors either come from the fan manufacturer, or from CeilingFanParts.com Home (http://www.ceilingfanparts.com)

That should solve your problem.