Question about Casablanca Fan Dryers
Fan speed switch located on unit itself. Controls only the fan speed. Reported to be a 330 ohm switch (seems low). Casablanca no longer sells the switch. The resistance figure was provided by a lady at Casablanca. I wasn't sure that she was correct.
Should I hit Radio Shack?
First, I have a BRAND NEW Casablanca potentiometer, stamped 1954150. It ohms out at 0 to 5.13K ohms, linear taper. ANY 5K ohm linear taper pot could be used. As stated above, a greated value could be substituted, but the scaling would be different - obviously.
Second, I wish everyone here would stop calling that "thing" on the aluminum heat sink a "resistor". It is a high power NPN TRANSISTOR. It is used to add or remove current from a pair of fixed resistors on the PCB, effectively forming an infinitely variable VOLTAGE DIVIDER between the bridge rectifier (powering the fan) and the fixed resistors. Clever in theory, unreliable in practice. I should know, I've rebuilt mine 3 times in 15 years. This last time, the pot went south. Fortunately, I had 1 more OEM pot in stock.
Finally, and for those of you that are interested, contrary to anything Casablanca tells you, the bearings in these units (at least mine) ARE replacable. Casablanca will tell you they are not, and that you MUST purchase a new fan motor for several hundred dollars - which pisses me off to no end. I have a Victorian Vari-Quiet (which I love), and the replacement bearings are 6005-2RS C/3 (Consolidated #). They are around $50 per set of 2 and widely available. However, they are not exactly easy to replace. But if you take your time , it is absolutely possible. I've replace the bearings in mine twice now. Note that you WILL have to cut 2 wires and resolder them. So if you can't solder, don't attempt this.
Posted on Aug 10, 2009
Okay -- first off, I don't know where she got that number from, but that's idiotic.
The variable-speed switch will provide different readings depending on where it's turned to. If the switch is busted ("open), it will typically display a reading of 'infinity' on your ohmmeter.
And yes -- the best place to find a replacement is Radio Shack, since Casablanca discontinued them.
Casablanca's variable-speed ceiling fans -- specifically the "SlumberQuiet" ones, which were made from circa 1980 or 1981 to the early/mid 1990s when variable-speed was discontinued -- are well-known for breaking down. The problem is almost never the potentiometer (variable-speed dial). Rather, the problem is almost always the resistor which is mounted in the heat-sink inside the fan's motor housing. There are NO replacements left for these -- so Casablanca makes a "variable-speed to 3-speed conversion kit", which will convert your fan to a more normal 3-speed pull-chain (hi-med-low) setup.
I hope that helps! If you have any other questions, please feel free to ask!
Posted on Jun 17, 2008
I have three of these fans. The potentiometer in one of them developed a dead spot and I replaced it. Works fine now. In case anybody is interested, the potentiometer is 25 Kohm linear taper.
Posted on May 30, 2009
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