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Cardiozone has error code E 1 - Cardiozone Exercise & Fitness

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Speed increases dramatically when trying to increase slowly on CardioZone Fast Track Elite II

This could be cused by the the display cover you touch to control the functions pressing on the touch switch array just under it. Carefully remove this. it is held on by adhesive and see if the symptom goes away. If it does, look for any dents on the cover. I have worked with these type of switches for nearly 20 years and they can be problematic. The other possibility is the mechanical switches you use to increase/decrease speed or tilt. They plug in seperately and you can disconnect them to see if they are causing the problem.

Nov 14, 2013 | Cardiozone Exercise & Fitness

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CardioZone SuperSportHR Club Fold-Away II ERROR 1

see the video and proceed according. God bless you

2) LUBE the rollers bearings too
3) test the drive belt motor, and replace it
4) Test the input voltage motor, if there are the motor need repair, see my personal TIPS for help
5) Test the output voltage board, for input voltage motor, if there are NOT THE board is faulty. see the block d.
God bless you

Nov 29, 2012 | Cardiozone Supersport Hr Club Commercial...

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Cardiozone Club HR T Error Code SI2

see the details and fix it. God bless you

Error - "SI2 At Power Up"


Indicates the OVP (Over Voltage Protection) circuit on the controller is active and belt will not move.


  • Check for RAIL and LVS LED's to be lit.

    • RAIL and LVS ok? Replace F2 fuse

    • RAIL not lit, but LVS ok? Replace F1 fuse

Nov 17, 2012 | Exercise & Fitness

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I have an E1 error on my Cardiozone Light commercial fast track elite 2 treadmill

1) adjust the speed sensor, and clean it, and tight the connector very well.see the diagram
2) test the main board output , for input voltage motor, if there are NOT the board is faulty see the block.
3) test the motor for input voltage, if there are the motor is faulty
God blesss you

Sep 19, 2012 | Exercise & Fitness

1 Answer

Tech said proboble board the big one blank screen. we cant get them back to replace board. cardiozone supersport club 3991clubg 11 do you have this board its the larger one that controls the motor

Dear Sir:

The best way is to go to the company, and they can resolve your problem.

Otherwise you will be lose your time. Remember the factory has many options with the manufacturer of the screen, and gave the o.k for your equipment.


Aug 01, 2011 | Cardiozone Supersport Hr Club Commercial...

1 Answer

I am looking for a owner's manual for CardioZone treadmill Model CZ SG65. I can't find anything on the internet.....can anyone help?

Go to or call them@ 1-800-750-4766 since Keys Fitness went out of business they bought the parts inventory I am assuming that they will have manual for you unit.

May 07, 2010 | Cardiozone Supersport Hr Club Commercial...

1 Answer

My cardio zone club max hrt speeds up and inclines on its own. How do I fix it?

When i turn in my Cardiozone Club Max Hrt. it starts showing SI 2.

Feb 11, 2010 | Cardiozone Exercise & Fitness

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