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Schwinn Airdyne AD4 fix Speed pick up

Configure RPM sensor & RPM pickup

Posted by Anonymous on


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Posted on Jan 02, 2017

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SOURCE: How can I order a

ebay or bike shop i would. and try the place u bort it they mite have 1

Posted on Jan 22, 2009

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SOURCE: Need users manual for old Schwinn Airdyne - analog model

Sheldon Brown's Bicycle glossery is a good place to start, you can google him and he may be slow on replys but he can usally steer you in the right direction.

Posted on Aug 21, 2009

Testimonial: "I emailed Sheldon Brown. Larry"

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SOURCE: purchased a schwinn airdyne 4 need assembly instructions

Try this - If that doesn't work, try this one: I hope this helped.

Posted on Nov 29, 2009

  • 1 Answer

SOURCE: older schwinn airdyne manuel

figured it out

Posted on Feb 04, 2010

  • 16 Answers

SOURCE: I bougt a used schwinn

Your computer's pickup magnet pickup sensor is not reading the magnet as you spin the bike. You probably have too much of a gap in between the magnet sensor and the magnet on your bike. Gently push the metal bracket holding your magnet sensora bit to close the gap and it should then read your magnet, calculate RPMs etc.

Posted on Oct 24, 2010

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5 Answers

User Guide/Manual for Schwinn Airdyne AD3

Schwinn Fitness has many of their manuals here: . The direct link to the owner's manual for all Airdyne exercise bikes is available here: . If you need the assembly directions, see the Airdyne AD4 guide: . The AD3 and AD4 are very similar.

I hope this helps.

Cindy Wells

Apr 08, 2015 | Schwinn Cycling


Identifying Your Schwinn Airdyne

How To Identify the Model of a Schwinn Airdyne Exercise Bike

  • We'd like to share some characteristics of the Schwinn Airdyne bikes that can be used to help you identify the model of your Airdyne bike.

What size/type fan does it have? Is it a spoke fan like a bicycle wheel or short wide blade fan?

Does your Airdyne bike have two chains or a chain and a belt?

  • AD3, AD4 bikes have two chains.
  • AD Pro/Comp and AD Evolution Pro/Comp bikes have a chain and a belt.

How do the crank arms attach to the Airdyne, by wedge pin or bolt?

  • AD3, AD4 and certain AD Pro/Comp crank arms attach by wedge pin.
  • Certain AD Pro/Comp bikes have crank arms that attach by bolt.
  • AD Evolution Pro/Comp bikes have crank arms that attach by bolt.

How To Identify the Model of Schwinn Airdyne Bike

on Mar 11, 2015 | Schwinn Original Airdyne

1 Answer

My older Schwinn Airdyne LED isn't working. The bike hasn't been used for several years. What needs to be done to get the LED operating?

Sounds like you just need to replace the mini computer batteries, they are AA batteries and are in the back of the housing

You can readjust your speed sensor if batteries did not fix the issue, make sure the speed sensor is 2mm to 4mm distance from flywheel.

If this does not solve the problem please do not hesitate to call us at 888-713-2880

or check out our Tech Support Center online

Feb 12, 2015 | Schwinn Cycling

1 Answer

Rpm indicator not working

Check the gap between the magnet on the wheel and the rpm pickup unit that senses the magnet, The sensor could have been bumped and the gap is too wide.

Feb 02, 2013 | Schwinn Original Airdyne

1 Answer

I Need Console for 1988 Airdyne

The age of the machine is not as big of a replacement parts hinder as is Schwinn going through so many buy outs since 1988.

One of the best exercise repair parts on online is They have consoles which are similar to your generation of machine for 170.00 - 240.00

Otherwise schwinn was most recently owned by Nautilus/Bowflex/LAMAR fitness and they may be able to help through their website.

Sorry, I don't have a great source of imformation to help with. I repair Schwinn exercise and it has become very hard to find parts recently as the new generation of AEROdynes are very different. Although, up until maybe 1-2 years ago, nothing had changed for 30 years.

Alternatively, search craigslist and ebay. You may have to buy an entire unit to get the part you desire. Often they have a drive mechanism worn out which devalues them to the seller, but has minimal to do with your search.

Good Luck.

Jan 06, 2013 | Schwinn Airdyne Ad4 Upright Bike

1 Answer

How to connect schwinn airdyne rpm

you must contact your company supplier for instalation, or read your instr. manual and follow the steps. if you do not have it download from

God bless you

Sep 14, 2012 | Schwinn Airdyne Evo Comp Upright Bike

1 Answer

Older schwinn airdyne manual

go to or or

God bless you

Jul 23, 2012 | Schwinn Airdyne Ad4 Upright Bike

1 Answer

Schwinn airdyne computer battery

it may need to be calibrated. Call schwinn or Treadmill Doctor at 800-750-4766 to walk you thru the calibration.

Jul 11, 2012 | Schwinn Airdyne Ad4 Upright Bike

1 Answer

The sensor doesn't seem to be working.. there is no RPM showing ?

Your sensor is too far from the magnet so it cannot read when the magnet goes by with each cycle. Close the gap to 1/8-1/16th of an inch gap and it will then read again. The sensors over time and when bike is moved can get pulled apart or pushed too close. Don't push too close or it will rub the magnet and that's not good, You can use your thumb to push the black magnetic sensor (pickup) closes to the gap I mentioned and then try the bike again. It may take a few times, to get the correct gap, but then the sensor should read. If you do indeed do have a defective sensor, you can get a replacement part at this fitness replacement parts place (look for schwinn and it's called SENSOR. But, try my solution first and give me a thumbs up when you get it working again with reading your rpms.:.

Feb 14, 2011 | Schwinn Original Airdyne

4 Answers

Looking for a Manual for an OLDER Schwinn Airdyne, cannot find any numbers. "Computer" has only 5 buttons plus 2 "select" buttons on Work/Speed, Time/Total. Buttons labelled left to right: Time/Reset,...

Send me your email address & I will send you a copy of the airdyne manual I scanned. It is a pdf copy which has description and instructions for your Airdyne computer. It has automatic (scans all features) and manual (stays on the 2 items you select in the display windows)and tells you how to change from manual to automatic and how to operate the computer. (

Aug 11, 2010 | Schwinn Original Airdyne

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