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What is the output voltage, amperage, watts and polarity for Schwinn 203 recumbent bike? I have a pile of transformers and don't know which one my mother-in-law used. Thanks for all replies.

Don't want to use the wrong one and blow out a board.

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If the recumbent digital computer gives you an option of power supply or batteries then you can deduce voltage of the power supply by counting the number of batteries needed times 1.5 (1.5 volts = voltage of AA or AAA battery).
You can deduce typical current by multiplying the number of batteries by: AA = .05 amps or AAA = .01 amps.
Your next issue will be to deduce the polarity. Look at the Schwinn to look for a symbol that will show you polarity. Typically the center of the plug is: + positive and the outer shell is - negative. There are instances where those two are reversed.
If this is all too confusing then Google the recumbent model number to find replacement power supplies ($35 to $45 US).

Posted on Nov 28, 2014

Testimonial: "No battery option. no symbol for polarity on plugin. If anyone has the correct transformer, all they have to do is look on the transformer, all the info will be there."

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My Scwinn excercise recumbant 203 bike start/stop is not working. Can I get a replacement?


Scott, If you do not see your part listed in link below, you may want to try a small electronics/computer repair shop they have ways to repair these items. Check the attached links,instruction and guides, Good luck
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We have a lutron nova 2003p (1600 watt) switch supplying power to a line of 18 12 volt, 50 watt lamps. switch went out. is this caused by over-amperage draw?


Hi John, I'm an electrician and I think I can help you with this problem.

First and foremost, this switch's 2000VA / 1600W electrical rating is based on a incandescent load.

Let's do do the math on this one.. 18 x 50 = 900 watts. So, you're under the 1600 watt capacity, but I think this is a bit more involved than this.

I'd be willing to bet that you're not dimming a 12 volt circuit - but rather a 120 volt circuit that supplies one or more transformers that step the power down from 120 volts to the the 12 volt bulb voltage. A transformer is an inductive load. A transformer's inductive load is completely different than the incandescent load the dimmer is designed to control. The transformers are rated for 120 volts and will have issues including heat problems if provided less than the rated input voltage to provide a reduced output voltage you want so that you can dim these lights.

This switch will not work on the output of the transformer in this situation either because the significant amperage being switched here. Each of these lamps draws a bit over 4 amps as determined by ohm's law: 50W / 12V = 4.16A. The total load at 12 volts is (again, Ohm's law) 18 x 4.16A = 74.88A ! That means the wire would need to be a #4 or #2. This is about the size of the cable on your car's battery (only amperage determines conductor size - voltage determines insulation).

A dimmer on this circuit will not work unless the fixtures are changed so that no transformers are used to supply the lamps. This includes fluorescent lamps (compact or otherwise) unless the packaging specifically states that they can be used on a dimmer.

You may wish to contact Lutron Hotline at 800-523-9466 for additional help and suggestions. I hope this helps & good luck!

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I'm looking for a manual for a recumbent bike,


Hi lcbir5319...

Go to the following websites for your user manual and parts list for your Schwinn 203.
Please take time to rate me thumbs up


User Manual:
http://download.dfxi.com/supportdocs/OM/Schwinn/SCH_103-203_OM_web.pdf

Parts list: http://download.dfxi.com/supportdocs/AM/Schwinn/SCH_201-203_AM_web.pdf

Schwinn website/customer support:
http://www.schwinnfitness.com/schwinn_fitness_us/customersupport/manualsen.jsp

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It uses an AC adapter. You can visit:

fitnessrepairparts.com

This is where I am getting the AC parts for my 201.
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